Hi all,
Samsung exynos and Rockchip rk3288 almost share same dp controller,
so I split the common code out, then rk3288 and exynos can re-used the
same dp core driver. Cause I can't find the exact IP name of exynos dp
controller, so I decide to name dp core driver with "analogix" which I
find in rk3288 eDP TRM ;)
Beyond that, there are three light registers setting differents bewteen
exynos and rk3288.
1. RK3288 have five special pll resigters which not indicata in exynos
dp controller.
2. The address of DP_PHY_PD(dp phy power manager register) are different
between rk3288 and exynos.
3. Rk3288 and exynos have different setting with AUX_HW_RETRY_CTL(dp debug
register).
My series patches can be divider into two parts: One for spliting the
analogix_dp code from exynos dp driver. Another are trying to add rk3288
dp driver support.
Best regards,
- Yakir
Yakir Yang (8):
drm: exynos/dp: fix code style
drm: exynos/dp: convert to drm bridge mode
drm: bridge: analogix_dp: split exynos dp driver to bridge dir
drm: rockchip/dp: add rockchip platform dp driver
drm: bridge/analogix_dp: add platform device type support
drm: bridge: analogix_dp: add some rk3288 special registers setting
drm: bridge: analogix_dp: try force hpd after plug in lookup failed
drm: bridge/analogix_dp: expand the delay time for hpd detect
drivers/gpu/drm/bridge/Kconfig | 5 +
drivers/gpu/drm/bridge/Makefile | 1 +
drivers/gpu/drm/bridge/analogix_dp_core.c | 1397 +++++++++++++++++++
drivers/gpu/drm/bridge/analogix_dp_core.h | 287 ++++
drivers/gpu/drm/bridge/analogix_dp_reg.c | 1295 ++++++++++++++++++
.../exynos_dp_reg.h => bridge/analogix_dp_reg.h} | 272 ++--
drivers/gpu/drm/exynos/Kconfig | 5 +-
drivers/gpu/drm/exynos/Makefile | 2 +-
drivers/gpu/drm/exynos/analogix_dp-exynos.c | 241 ++++
drivers/gpu/drm/exynos/exynos_dp_core.c | 1416 --------------------
drivers/gpu/drm/exynos/exynos_dp_core.h | 282 ----
drivers/gpu/drm/exynos/exynos_dp_reg.c | 100 +-
drivers/gpu/drm/rockchip/Kconfig | 10 +
drivers/gpu/drm/rockchip/Makefile | 1 +
drivers/gpu/drm/rockchip/analogix_dp-rockchip.c | 420 ++++++
include/drm/bridge/analogix_dp.h | 28 +
16 files changed, 3880 insertions(+), 1882 deletions(-)
create mode 100644 drivers/gpu/drm/bridge/analogix_dp_core.c
create mode 100644 drivers/gpu/drm/bridge/analogix_dp_core.h
create mode 100644 drivers/gpu/drm/bridge/analogix_dp_reg.c
rename drivers/gpu/drm/{exynos/exynos_dp_reg.h => bridge/analogix_dp_reg.h} (62%)
create mode 100644 drivers/gpu/drm/exynos/analogix_dp-exynos.c
delete mode 100644 drivers/gpu/drm/exynos/exynos_dp_core.c
delete mode 100644 drivers/gpu/drm/exynos/exynos_dp_core.h
create mode 100644 drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
create mode 100644 include/drm/bridge/analogix_dp.h
--
2.1.2
make checkpatch.pl script happy
Signed-off-by: Yakir Yang <[email protected]>
---
drivers/gpu/drm/exynos/exynos_dp_core.c | 224
++++++++++++++++----------------
drivers/gpu/drm/exynos/exynos_dp_core.h | 53 ++++----
drivers/gpu/drm/exynos/exynos_dp_reg.c | 100 +++++++-------
3 files changed, 185 insertions(+), 192 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c
b/drivers/gpu/drm/exynos/exynos_dp_core.c
index 172b800..a8097a4 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_core.c
+++ b/drivers/gpu/drm/exynos/exynos_dp_core.c
@@ -114,8 +114,8 @@ static int exynos_dp_read_edid(struct
exynos_dp_device *dp)
/* Read Extension Flag, Number of 128-byte EDID extension blocks */
retval = exynos_dp_read_byte_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
- EDID_EXTENSION_FLAG,
- &extend_block);
+ EDID_EXTENSION_FLAG,
+ &extend_block);
if (retval)
return retval;
@@ -123,10 +123,11 @@ static int exynos_dp_read_edid(struct
exynos_dp_device *dp)
dev_dbg(dp->dev, "EDID data includes a single extension!\n");
/* Read EDID data */
- retval = exynos_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
- EDID_HEADER_PATTERN,
- EDID_BLOCK_LENGTH,
- &edid[EDID_HEADER_PATTERN]);
+ retval =
+ exynos_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
+ EDID_HEADER_PATTERN,
+ EDID_BLOCK_LENGTH,
+ &edid[EDID_HEADER_PATTERN]);
if (retval != 0) {
dev_err(dp->dev, "EDID Read failed!\n");
return -EIO;
@@ -138,11 +139,11 @@ static int exynos_dp_read_edid(struct
exynos_dp_device *dp)
}
/* Read additional EDID data */
- retval = exynos_dp_read_bytes_from_i2c(dp,
- I2C_EDID_DEVICE_ADDR,
- EDID_BLOCK_LENGTH,
- EDID_BLOCK_LENGTH,
- &edid[EDID_BLOCK_LENGTH]);
+ retval =
+ exynos_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
+ EDID_BLOCK_LENGTH,
+ EDID_BLOCK_LENGTH,
+ &edid[EDID_BLOCK_LENGTH]);
if (retval != 0) {
dev_err(dp->dev, "EDID Read failed!\n");
return -EIO;
@@ -154,24 +155,22 @@ static int exynos_dp_read_edid(struct
exynos_dp_device *dp)
}
exynos_dp_read_byte_from_dpcd(dp, DP_TEST_REQUEST,
- &test_vector);
+ &test_vector);
if (test_vector & DP_TEST_LINK_EDID_READ) {
- exynos_dp_write_byte_to_dpcd(dp,
- DP_TEST_EDID_CHECKSUM,
+ exynos_dp_write_byte_to_dpcd(
+ dp, DP_TEST_EDID_CHECKSUM,
edid[EDID_BLOCK_LENGTH + EDID_CHECKSUM]);
- exynos_dp_write_byte_to_dpcd(dp,
- DP_TEST_RESPONSE,
+ exynos_dp_write_byte_to_dpcd(
+ dp, DP_TEST_RESPONSE,
DP_TEST_EDID_CHECKSUM_WRITE);
}
} else {
dev_info(dp->dev, "EDID data does not include any extensions.\n");
/* Read EDID data */
- retval = exynos_dp_read_bytes_from_i2c(dp,
- I2C_EDID_DEVICE_ADDR,
- EDID_HEADER_PATTERN,
- EDID_BLOCK_LENGTH,
- &edid[EDID_HEADER_PATTERN]);
+ retval = exynos_dp_read_bytes_from_i2c(
+ dp, I2C_EDID_DEVICE_ADDR, EDID_HEADER_PATTERN,
+ EDID_BLOCK_LENGTH, &edid[EDID_HEADER_PATTERN]);
if (retval != 0) {
dev_err(dp->dev, "EDID Read failed!\n");
return -EIO;
@@ -182,16 +181,15 @@ static int exynos_dp_read_edid(struct
exynos_dp_device *dp)
return -EIO;
}
- exynos_dp_read_byte_from_dpcd(dp,
- DP_TEST_REQUEST,
- &test_vector);
+ exynos_dp_read_byte_from_dpcd(dp, DP_TEST_REQUEST,
+ &test_vector);
if (test_vector & DP_TEST_LINK_EDID_READ) {
- exynos_dp_write_byte_to_dpcd(dp,
- DP_TEST_EDID_CHECKSUM,
- edid[EDID_CHECKSUM]);
- exynos_dp_write_byte_to_dpcd(dp,
- DP_TEST_RESPONSE,
- DP_TEST_EDID_CHECKSUM_WRITE);
+ exynos_dp_write_byte_to_dpcd(
+ dp, DP_TEST_EDID_CHECKSUM,
+ edid[EDID_CHECKSUM]);
+ exynos_dp_write_byte_to_dpcd(
+ dp, DP_TEST_RESPONSE,
+ DP_TEST_EDID_CHECKSUM_WRITE);
}
}
@@ -206,8 +204,7 @@ static int exynos_dp_handle_edid(struct
exynos_dp_device *dp)
int retval;
/* Read DPCD DP_DPCD_REV~RECEIVE_PORT1_CAP_1 */
- retval = exynos_dp_read_bytes_from_dpcd(dp, DP_DPCD_REV,
- 12, buf);
+ retval = exynos_dp_read_bytes_from_dpcd(dp, DP_DPCD_REV, 12, buf);
if (retval)
return retval;
@@ -222,19 +219,21 @@ static int exynos_dp_handle_edid(struct
exynos_dp_device *dp)
}
static void exynos_dp_enable_rx_to_enhanced_mode(struct
exynos_dp_device *dp,
- bool enable)
+ bool enable)
{
u8 data;
exynos_dp_read_byte_from_dpcd(dp, DP_LANE_COUNT_SET, &data);
if (enable)
- exynos_dp_write_byte_to_dpcd(dp, DP_LANE_COUNT_SET,
- DP_LANE_COUNT_ENHANCED_FRAME_EN |
- DPCD_LANE_COUNT_SET(data));
+ exynos_dp_write_byte_to_dpcd(
+ dp, DP_LANE_COUNT_SET,
+ DP_LANE_COUNT_ENHANCED_FRAME_EN |
+ DPCD_LANE_COUNT_SET(data));
else
- exynos_dp_write_byte_to_dpcd(dp, DP_LANE_COUNT_SET,
- DPCD_LANE_COUNT_SET(data));
+ exynos_dp_write_byte_to_dpcd(
+ dp, DP_LANE_COUNT_SET,
+ DPCD_LANE_COUNT_SET(data));
}
static int exynos_dp_is_enhanced_mode_available(struct
exynos_dp_device *dp)
@@ -261,13 +260,12 @@ static void exynos_dp_training_pattern_dis(struct
exynos_dp_device *dp)
{
exynos_dp_set_training_pattern(dp, DP_NONE);
- exynos_dp_write_byte_to_dpcd(dp,
- DP_TRAINING_PATTERN_SET,
- DP_TRAINING_PATTERN_DISABLE);
+ exynos_dp_write_byte_to_dpcd(dp, DP_TRAINING_PATTERN_SET,
+ DP_TRAINING_PATTERN_DISABLE);
}
static void exynos_dp_set_lane_lane_pre_emphasis(struct
exynos_dp_device *dp,
- int pre_emphasis, int lane)
+ int pre_emphasis, int lane)
{
switch (lane) {
case 0:
@@ -307,15 +305,14 @@ static int exynos_dp_link_start(struct
exynos_dp_device *dp)
/* Setup RX configuration */
buf[0] = dp->link_train.link_rate;
buf[1] = dp->link_train.lane_count;
- retval = exynos_dp_write_bytes_to_dpcd(dp, DP_LINK_BW_SET,
- 2, buf);
+ retval = exynos_dp_write_bytes_to_dpcd(dp, DP_LINK_BW_SET, 2, buf);
if (retval)
return retval;
/* Set TX pre-emphasis to minimum */
for (lane = 0; lane < lane_count; lane++)
- exynos_dp_set_lane_lane_pre_emphasis(dp,
- PRE_EMPHASIS_LEVEL_0, lane);
+ exynos_dp_set_lane_lane_pre_emphasis(dp, PRE_EMPHASIS_LEVEL_0,
+ lane);
/* Wait for PLL lock */
pll_tries = 0;
@@ -333,9 +330,9 @@ static int exynos_dp_link_start(struct
exynos_dp_device *dp)
exynos_dp_set_training_pattern(dp, TRAINING_PTN1);
/* Set RX training pattern */
- retval = exynos_dp_write_byte_to_dpcd(dp,
- DP_TRAINING_PATTERN_SET,
- DP_LINK_SCRAMBLING_DISABLE | DP_TRAINING_PATTERN_1);
+ retval = exynos_dp_write_byte_to_dpcd(dp, DP_TRAINING_PATTERN_SET,
+ DP_LINK_SCRAMBLING_DISABLE |
+ DP_TRAINING_PATTERN_1);
if (retval)
return retval;
@@ -344,7 +341,7 @@ static int exynos_dp_link_start(struct
exynos_dp_device *dp)
DP_TRAIN_VOLTAGE_SWING_LEVEL_0;
retval = exynos_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
- lane_count, buf);
+ lane_count, buf);
return retval;
}
@@ -352,7 +349,7 @@ static int exynos_dp_link_start(struct
exynos_dp_device *dp)
static unsigned char exynos_dp_get_lane_status(u8 link_status[2], int
lane)
{
int shift = (lane & 1) * 4;
- u8 link_value = link_status[lane>>1];
+ u8 link_value = link_status[lane >> 1];
return (link_value >> shift) & 0xf;
}
@@ -371,7 +368,7 @@ static int exynos_dp_clock_recovery_ok(u8
link_status[2], int lane_count)
}
static int exynos_dp_channel_eq_ok(u8 link_status[2], u8 link_align,
- int lane_count)
+ int lane_count)
{
int lane;
u8 lane_status;
@@ -390,10 +387,10 @@ static int exynos_dp_channel_eq_ok(u8
link_status[2], u8 link_align,
}
static unsigned char exynos_dp_get_adjust_request_voltage(u8
adjust_request[2],
- int lane)
+ int lane)
{
int shift = (lane & 1) * 4;
- u8 link_value = adjust_request[lane>>1];
+ u8 link_value = adjust_request[lane >> 1];
return (link_value >> shift) & 0x3;
}
@@ -403,13 +400,13 @@ static unsigned char
exynos_dp_get_adjust_request_pre_emphasis(
int lane)
{
int shift = (lane & 1) * 4;
- u8 link_value = adjust_request[lane>>1];
+ u8 link_value = adjust_request[lane >> 1];
return ((link_value >> shift) & 0xc) >> 2;
}
static void exynos_dp_set_lane_link_training(struct exynos_dp_device *dp,
- u8 training_lane_set, int lane)
+ u8 training_lane_set, int lane)
{
switch (lane) {
case 0:
@@ -465,7 +462,7 @@ static void exynos_dp_reduce_link_rate(struct
exynos_dp_device *dp)
}
static void exynos_dp_get_adjust_training_lane(struct exynos_dp_device
*dp,
- u8 adjust_request[2])
+ u8 adjust_request[2])
{
int lane, lane_count;
u8 voltage_swing, pre_emphasis, training_lane;
@@ -498,13 +495,13 @@ static int exynos_dp_process_clock_recovery(struct
exynos_dp_device *dp)
lane_count = dp->link_train.lane_count;
- retval = exynos_dp_read_bytes_from_dpcd(dp,
- DP_LANE0_1_STATUS, 2, link_status);
+ retval = exynos_dp_read_bytes_from_dpcd(dp, DP_LANE0_1_STATUS,
+ 2, link_status);
if (retval)
return retval;
- retval = exynos_dp_read_bytes_from_dpcd(dp,
- DP_ADJUST_REQUEST_LANE0_1, 2, adjust_request);
+ retval = exynos_dp_read_bytes_from_dpcd(dp, DP_ADJUST_REQUEST_LANE0_1,
+ 2, adjust_request);
if (retval)
return retval;
@@ -512,8 +509,8 @@ static int exynos_dp_process_clock_recovery(struct
exynos_dp_device *dp)
/* set training pattern 2 for EQ */
exynos_dp_set_training_pattern(dp, TRAINING_PTN2);
- retval = exynos_dp_write_byte_to_dpcd(dp,
- DP_TRAINING_PATTERN_SET,
+ retval = exynos_dp_write_byte_to_dpcd(
+ dp, DP_TRAINING_PATTERN_SET,
DP_LINK_SCRAMBLING_DISABLE |
DP_TRAINING_PATTERN_2);
if (retval)
@@ -527,8 +524,9 @@ static int exynos_dp_process_clock_recovery(struct
exynos_dp_device *dp)
dp, lane);
voltage_swing = exynos_dp_get_adjust_request_voltage(
adjust_request, lane);
- pre_emphasis = exynos_dp_get_adjust_request_pre_emphasis(
- adjust_request, lane);
+ pre_emphasis =
+ exynos_dp_get_adjust_request_pre_emphasis(
+ adjust_request, lane);
if (DPCD_VOLTAGE_SWING_GET(training_lane) ==
voltage_swing &&
@@ -551,11 +549,11 @@ static int exynos_dp_process_clock_recovery(struct
exynos_dp_device *dp)
exynos_dp_get_adjust_training_lane(dp, adjust_request);
for (lane = 0; lane < lane_count; lane++)
- exynos_dp_set_lane_link_training(dp,
- dp->link_train.training_lane[lane], lane);
+ exynos_dp_set_lane_link_training(
+ dp, dp->link_train.training_lane[lane], lane);
- retval = exynos_dp_write_bytes_to_dpcd(dp,
- DP_TRAINING_LANE0_SET, lane_count,
+ retval = exynos_dp_write_bytes_to_dpcd(
+ dp, DP_TRAINING_LANE0_SET, lane_count,
dp->link_train.training_lane);
if (retval)
return retval;
@@ -573,8 +571,8 @@ static int
exynos_dp_process_equalizer_training(struct exynos_dp_device *dp)
lane_count = dp->link_train.lane_count;
- retval = exynos_dp_read_bytes_from_dpcd(dp,
- DP_LANE0_1_STATUS, 2, link_status);
+ retval = exynos_dp_read_bytes_from_dpcd(dp, DP_LANE0_1_STATUS,
+ 2, link_status);
if (retval)
return retval;
@@ -583,13 +581,13 @@ static int
exynos_dp_process_equalizer_training(struct exynos_dp_device *dp)
return -EIO;
}
- retval = exynos_dp_read_bytes_from_dpcd(dp,
- DP_ADJUST_REQUEST_LANE0_1, 2, adjust_request);
+ retval = exynos_dp_read_bytes_from_dpcd(dp, DP_ADJUST_REQUEST_LANE0_1,
+ 2, adjust_request);
if (retval)
return retval;
- retval = exynos_dp_read_byte_from_dpcd(dp,
- DP_LANE_ALIGN_STATUS_UPDATED, &link_align);
+ retval = exynos_dp_read_byte_from_dpcd(
+ dp, DP_LANE_ALIGN_STATUS_UPDATED, &link_align);
if (retval)
return retval;
@@ -628,17 +626,18 @@ static int
exynos_dp_process_equalizer_training(struct exynos_dp_device *dp)
}
for (lane = 0; lane < lane_count; lane++)
- exynos_dp_set_lane_link_training(dp,
- dp->link_train.training_lane[lane], lane);
+ exynos_dp_set_lane_link_training(
+ dp, dp->link_train.training_lane[lane], lane);
retval = exynos_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
- lane_count, dp->link_train.training_lane);
+ lane_count,
+ dp->link_train.training_lane);
return retval;
}
static void exynos_dp_get_max_rx_bandwidth(struct exynos_dp_device *dp,
- u8 *bandwidth)
+ u8 *bandwidth)
{
u8 data;
@@ -651,7 +650,7 @@ static void exynos_dp_get_max_rx_bandwidth(struct
exynos_dp_device *dp,
}
static void exynos_dp_get_max_rx_lane_count(struct exynos_dp_device *dp,
- u8 *lane_count)
+ u8 *lane_count)
{
u8 data;
@@ -664,8 +663,8 @@ static void exynos_dp_get_max_rx_lane_count(struct
exynos_dp_device *dp,
}
static void exynos_dp_init_training(struct exynos_dp_device *dp,
- enum link_lane_count_type max_lane,
- enum link_rate_type max_rate)
+ enum link_lane_count_type max_lane,
+ enum link_rate_type max_rate)
{
/*
* MACRO_RST must be applied after the PLL_LOCK to avoid
@@ -678,7 +677,7 @@ static void exynos_dp_init_training(struct
exynos_dp_device *dp,
exynos_dp_get_max_rx_lane_count(dp, &dp->link_train.lane_count);
if ((dp->link_train.link_rate != LINK_RATE_1_62GBPS) &&
- (dp->link_train.link_rate != LINK_RATE_2_70GBPS)) {
+ (dp->link_train.link_rate != LINK_RATE_2_70GBPS)) {
dev_err(dp->dev, "Rx Max Link Rate is abnormal :%x !\n",
dp->link_train.link_rate);
dp->link_train.link_rate = LINK_RATE_1_62GBPS;
@@ -738,8 +737,7 @@ static int exynos_dp_sw_link_training(struct
exynos_dp_device *dp)
}
static int exynos_dp_set_link_train(struct exynos_dp_device *dp,
- u32 count,
- u32 bwtype)
+ u32 count, u32 bwtype)
{
int i;
int retval;
@@ -830,21 +828,19 @@ static void exynos_dp_enable_scramble(struct
exynos_dp_device *dp, bool enable)
if (enable) {
exynos_dp_enable_scrambling(dp);
- exynos_dp_read_byte_from_dpcd(dp,
- DP_TRAINING_PATTERN_SET,
- &data);
- exynos_dp_write_byte_to_dpcd(dp,
- DP_TRAINING_PATTERN_SET,
+ exynos_dp_read_byte_from_dpcd(dp, DP_TRAINING_PATTERN_SET,
+ &data);
+ exynos_dp_write_byte_to_dpcd(
+ dp, DP_TRAINING_PATTERN_SET,
(u8)(data & ~DP_LINK_SCRAMBLING_DISABLE));
} else {
exynos_dp_disable_scrambling(dp);
- exynos_dp_read_byte_from_dpcd(dp,
- DP_TRAINING_PATTERN_SET,
- &data);
- exynos_dp_write_byte_to_dpcd(dp,
- DP_TRAINING_PATTERN_SET,
- (u8)(data | DP_LINK_SCRAMBLING_DISABLE));
+ exynos_dp_read_byte_from_dpcd(dp, DP_TRAINING_PATTERN_SET,
+ &data);
+ exynos_dp_write_byte_to_dpcd(
+ dp, DP_TRAINING_PATTERN_SET,
+ (u8)(data | DP_LINK_SCRAMBLING_DISABLE));
}
}
@@ -915,7 +911,7 @@ static void exynos_dp_commit(struct
exynos_drm_display *display)
}
ret = exynos_dp_set_link_train(dp, dp->video_info->lane_count,
- dp->video_info->link_rate);
+ dp->video_info->link_rate);
if (ret) {
dev_err(dp->dev, "unable to do link train\n");
return;
@@ -1004,7 +1000,7 @@ static struct drm_connector_helper_funcs
exynos_dp_connector_helper_funcs = {
/* returns the number of bridges attached */
static int exynos_drm_attach_lcd_bridge(struct exynos_dp_device *dp,
- struct drm_encoder *encoder)
+ struct drm_encoder *encoder)
{
int ret;
@@ -1020,7 +1016,7 @@ static int exynos_drm_attach_lcd_bridge(struct
exynos_dp_device *dp,
}
static int exynos_dp_create_connector(struct exynos_drm_display *display,
- struct drm_encoder *encoder)
+ struct drm_encoder *encoder)
{
struct exynos_dp_device *dp = display_to_dp(display);
struct drm_connector *connector = &dp->connector;
@@ -1038,7 +1034,8 @@ static int exynos_dp_create_connector(struct
exynos_drm_display *display,
connector->polled = DRM_CONNECTOR_POLL_HPD;
ret = drm_connector_init(dp->drm_dev, connector,
- &exynos_dp_connector_funcs, DRM_MODE_CONNECTOR_eDP);
+ &exynos_dp_connector_funcs,
+ DRM_MODE_CONNECTOR_eDP);
if (ret) {
DRM_ERROR("Failed to initialize connector with drm\n");
return ret;
@@ -1148,8 +1145,8 @@ static struct video_info
*exynos_dp_dt_parse_pdata(struct device *dev)
struct device_node *dp_node = dev->of_node;
struct video_info *dp_video_config;
- dp_video_config = devm_kzalloc(dev,
- sizeof(*dp_video_config), GFP_KERNEL);
+ dp_video_config = devm_kzalloc(dev, sizeof(*dp_video_config),
+ GFP_KERNEL);
if (!dp_video_config)
return ERR_PTR(-ENOMEM);
@@ -1163,37 +1160,37 @@ static struct video_info
*exynos_dp_dt_parse_pdata(struct device *dev)
of_property_read_bool(dp_node, "interlaced");
if (of_property_read_u32(dp_node, "samsung,color-space",
- &dp_video_config->color_space)) {
+ &dp_video_config->color_space)) {
dev_err(dev, "failed to get color-space\n");
return ERR_PTR(-EINVAL);
}
if (of_property_read_u32(dp_node, "samsung,dynamic-range",
- &dp_video_config->dynamic_range)) {
+ &dp_video_config->dynamic_range)) {
dev_err(dev, "failed to get dynamic-range\n");
return ERR_PTR(-EINVAL);
}
if (of_property_read_u32(dp_node, "samsung,ycbcr-coeff",
- &dp_video_config->ycbcr_coeff)) {
+ &dp_video_config->ycbcr_coeff)) {
dev_err(dev, "failed to get ycbcr-coeff\n");
return ERR_PTR(-EINVAL);
}
if (of_property_read_u32(dp_node, "samsung,color-depth",
- &dp_video_config->color_depth)) {
+ &dp_video_config->color_depth)) {
dev_err(dev, "failed to get color-depth\n");
return ERR_PTR(-EINVAL);
}
if (of_property_read_u32(dp_node, "samsung,link-rate",
- &dp_video_config->link_rate)) {
+ &dp_video_config->link_rate)) {
dev_err(dev, "failed to get link-rate\n");
return ERR_PTR(-EINVAL);
}
if (of_property_read_u32(dp_node, "samsung,lane-count",
- &dp_video_config->lane_count)) {
+ &dp_video_config->lane_count)) {
dev_err(dev, "failed to get lane-count\n");
return ERR_PTR(-EINVAL);
}
@@ -1206,7 +1203,7 @@ static int exynos_dp_dt_parse_panel(struct
exynos_dp_device *dp)
int ret;
ret = of_get_videomode(dp->dev->of_node, &dp->priv.vm,
- OF_USE_NATIVE_MODE);
+ OF_USE_NATIVE_MODE);
if (ret) {
DRM_ERROR("failed: of_get_videomode() : %d\n", ret);
return ret;
@@ -1302,7 +1299,7 @@ static int exynos_dp_bind(struct device *dev,
struct device *master, void *data)
exynos_dp_init_dp(dp);
ret = devm_request_irq(&pdev->dev, dp->irq, exynos_dp_irq_handler,
- irq_flags, "exynos-dp", dp);
+ irq_flags, "exynos-dp", dp);
if (ret) {
dev_err(&pdev->dev, "failed to request irq\n");
return ret;
@@ -1315,7 +1312,7 @@ static int exynos_dp_bind(struct device *dev,
struct device *master, void *data)
}
static void exynos_dp_unbind(struct device *dev, struct device *master,
- void *data)
+ void *data)
{
struct exynos_dp_device *dp = dev_get_drvdata(dev);
@@ -1334,7 +1331,7 @@ static int exynos_dp_probe(struct platform_device
*pdev)
struct exynos_dp_device *dp;
dp = devm_kzalloc(&pdev->dev, sizeof(struct exynos_dp_device),
- GFP_KERNEL);
+ GFP_KERNEL);
if (!dp)
return -ENOMEM;
@@ -1358,8 +1355,9 @@ static int exynos_dp_probe(struct platform_device
*pdev)
of_node_put(bridge_node);
if (!dp->bridge)
return -EPROBE_DEFER;
- } else
+ } else {
return -EPROBE_DEFER;
+ }
}
return component_add(&pdev->dev, &exynos_dp_ops);
diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.h
b/drivers/gpu/drm/exynos/exynos_dp_core.h
index a4e7996..c321ad5 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_core.h
+++ b/drivers/gpu/drm/exynos/exynos_dp_core.h
@@ -180,8 +180,8 @@ void exynos_dp_config_interrupt(struct
exynos_dp_device *dp);
enum pll_status exynos_dp_get_pll_lock_status(struct exynos_dp_device
*dp);
void exynos_dp_set_pll_power_down(struct exynos_dp_device *dp, bool
enable);
void exynos_dp_set_analog_power_down(struct exynos_dp_device *dp,
- enum analog_power_block block,
- bool enable);
+ enum analog_power_block block,
+ bool enable);
void exynos_dp_init_analog_func(struct exynos_dp_device *dp);
void exynos_dp_init_hpd(struct exynos_dp_device *dp);
enum dp_irq_type exynos_dp_get_irq_type(struct exynos_dp_device *dp);
@@ -192,50 +192,50 @@ int exynos_dp_get_plug_in_status(struct
exynos_dp_device *dp);
void exynos_dp_enable_sw_function(struct exynos_dp_device *dp);
int exynos_dp_start_aux_transaction(struct exynos_dp_device *dp);
int exynos_dp_write_byte_to_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned char data);
+ unsigned int reg_addr,
+ unsigned char data);
int exynos_dp_read_byte_from_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned char *data);
+ unsigned int reg_addr,
+ unsigned char *data);
int exynos_dp_write_bytes_to_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned int count,
- unsigned char data[]);
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char data[]);
int exynos_dp_read_bytes_from_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned int count,
- unsigned char data[]);
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char data[]);
int exynos_dp_select_i2c_device(struct exynos_dp_device *dp,
unsigned int device_addr,
unsigned int reg_addr);
int exynos_dp_read_byte_from_i2c(struct exynos_dp_device *dp,
- unsigned int device_addr,
- unsigned int reg_addr,
- unsigned int *data);
+ unsigned int device_addr,
+ unsigned int reg_addr,
+ unsigned int *data);
int exynos_dp_read_bytes_from_i2c(struct exynos_dp_device *dp,
- unsigned int device_addr,
- unsigned int reg_addr,
- unsigned int count,
- unsigned char edid[]);
+ unsigned int device_addr,
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char edid[]);
void exynos_dp_set_link_bandwidth(struct exynos_dp_device *dp, u32
bwtype);
void exynos_dp_get_link_bandwidth(struct exynos_dp_device *dp, u32
*bwtype);
void exynos_dp_set_lane_count(struct exynos_dp_device *dp, u32 count);
void exynos_dp_get_lane_count(struct exynos_dp_device *dp, u32 *count);
void exynos_dp_enable_enhanced_mode(struct exynos_dp_device *dp, bool
enable);
void exynos_dp_set_training_pattern(struct exynos_dp_device *dp,
- enum pattern_set pattern);
+ enum pattern_set pattern);
void exynos_dp_set_lane0_pre_emphasis(struct exynos_dp_device *dp, u32
level);
void exynos_dp_set_lane1_pre_emphasis(struct exynos_dp_device *dp, u32
level);
void exynos_dp_set_lane2_pre_emphasis(struct exynos_dp_device *dp, u32
level);
void exynos_dp_set_lane3_pre_emphasis(struct exynos_dp_device *dp, u32
level);
void exynos_dp_set_lane0_link_training(struct exynos_dp_device *dp,
- u32 training_lane);
+ u32 training_lane);
void exynos_dp_set_lane1_link_training(struct exynos_dp_device *dp,
- u32 training_lane);
+ u32 training_lane);
void exynos_dp_set_lane2_link_training(struct exynos_dp_device *dp,
- u32 training_lane);
+ u32 training_lane);
void exynos_dp_set_lane3_link_training(struct exynos_dp_device *dp,
- u32 training_lane);
+ u32 training_lane);
u32 exynos_dp_get_lane0_link_training(struct exynos_dp_device *dp);
u32 exynos_dp_get_lane1_link_training(struct exynos_dp_device *dp);
u32 exynos_dp_get_lane2_link_training(struct exynos_dp_device *dp);
@@ -246,9 +246,8 @@ void exynos_dp_init_video(struct exynos_dp_device *dp);
void exynos_dp_set_video_color_format(struct exynos_dp_device *dp);
int exynos_dp_is_slave_video_stream_clock_on(struct exynos_dp_device *dp);
void exynos_dp_set_video_cr_mn(struct exynos_dp_device *dp,
- enum clock_recovery_m_value_type type,
- u32 m_value,
- u32 n_value);
+ enum clock_recovery_m_value_type type,
+ u32 m_value, u32 n_value);
void exynos_dp_set_video_timing_mode(struct exynos_dp_device *dp, u32
type);
void exynos_dp_enable_video_master(struct exynos_dp_device *dp, bool
enable);
void exynos_dp_start_video(struct exynos_dp_device *dp);
diff --git a/drivers/gpu/drm/exynos/exynos_dp_reg.c
b/drivers/gpu/drm/exynos/exynos_dp_reg.c
index c1f87a2..9aa483d 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_reg.c
+++ b/drivers/gpu/drm/exynos/exynos_dp_reg.c
@@ -202,8 +202,8 @@ void exynos_dp_set_pll_power_down(struct
exynos_dp_device *dp, bool enable)
}
void exynos_dp_set_analog_power_down(struct exynos_dp_device *dp,
- enum analog_power_block block,
- bool enable)
+ enum analog_power_block block,
+ bool enable)
{
u32 reg;
@@ -399,8 +399,8 @@ void exynos_dp_init_aux(struct exynos_dp_device *dp)
exynos_dp_reset_aux(dp);
/* Disable AUX transaction H/W retry */
- reg = AUX_BIT_PERIOD_EXPECTED_DELAY(3) | AUX_HW_RETRY_COUNT_SEL(0)|
- AUX_HW_RETRY_INTERVAL_600_MICROSECONDS;
+ reg = AUX_BIT_PERIOD_EXPECTED_DELAY(3) | AUX_HW_RETRY_COUNT_SEL(0) |
+ AUX_HW_RETRY_INTERVAL_600_MICROSECONDS;
writel(reg, dp->reg_base + EXYNOS_DP_AUX_HW_RETRY_CTL);
/* Receive AUX Channel DEFER commands equal to DEFFER_COUNT*64 */
@@ -483,8 +483,8 @@ int exynos_dp_start_aux_transaction(struct
exynos_dp_device *dp)
}
int exynos_dp_write_byte_to_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned char data)
+ unsigned int reg_addr,
+ unsigned char data)
{
u32 reg;
int i;
@@ -519,17 +519,16 @@ int exynos_dp_write_byte_to_dpcd(struct
exynos_dp_device *dp,
retval = exynos_dp_start_aux_transaction(dp);
if (retval == 0)
break;
- else
- dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
- __func__);
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
}
return retval;
}
int exynos_dp_read_byte_from_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned char *data)
+ unsigned int reg_addr,
+ unsigned char *data)
{
u32 reg;
int i;
@@ -560,9 +559,8 @@ int exynos_dp_read_byte_from_dpcd(struct
exynos_dp_device *dp,
retval = exynos_dp_start_aux_transaction(dp);
if (retval == 0)
break;
- else
- dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
- __func__);
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
}
/* Read data buffer */
@@ -573,9 +571,9 @@ int exynos_dp_read_byte_from_dpcd(struct
exynos_dp_device *dp,
}
int exynos_dp_write_bytes_to_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned int count,
- unsigned char data[])
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char data[])
{
u32 reg;
unsigned int start_offset;
@@ -625,9 +623,9 @@ int exynos_dp_write_bytes_to_dpcd(struct
exynos_dp_device *dp,
retval = exynos_dp_start_aux_transaction(dp);
if (retval == 0)
break;
- else
- dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
- __func__);
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+ __func__);
}
start_offset += cur_data_count;
@@ -637,9 +635,9 @@ int exynos_dp_write_bytes_to_dpcd(struct
exynos_dp_device *dp,
}
int exynos_dp_read_bytes_from_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned int count,
- unsigned char data[])
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char data[])
{
u32 reg;
unsigned int start_offset;
@@ -683,9 +681,9 @@ int exynos_dp_read_bytes_from_dpcd(struct
exynos_dp_device *dp,
retval = exynos_dp_start_aux_transaction(dp);
if (retval == 0)
break;
- else
- dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
- __func__);
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+ __func__);
}
for (cur_data_idx = 0; cur_data_idx < cur_data_count;
@@ -736,9 +734,9 @@ int exynos_dp_select_i2c_device(struct
exynos_dp_device *dp,
}
int exynos_dp_read_byte_from_i2c(struct exynos_dp_device *dp,
- unsigned int device_addr,
- unsigned int reg_addr,
- unsigned int *data)
+ unsigned int device_addr,
+ unsigned int reg_addr,
+ unsigned int *data)
{
u32 reg;
int i;
@@ -767,9 +765,8 @@ int exynos_dp_read_byte_from_i2c(struct
exynos_dp_device *dp,
retval = exynos_dp_start_aux_transaction(dp);
if (retval == 0)
break;
- else
- dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
- __func__);
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
}
/* Read data */
@@ -780,10 +777,10 @@ int exynos_dp_read_byte_from_i2c(struct
exynos_dp_device *dp,
}
int exynos_dp_read_bytes_from_i2c(struct exynos_dp_device *dp,
- unsigned int device_addr,
- unsigned int reg_addr,
- unsigned int count,
- unsigned char edid[])
+ unsigned int device_addr,
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char edid[])
{
u32 reg;
unsigned int i, j;
@@ -807,8 +804,8 @@ int exynos_dp_read_bytes_from_i2c(struct
exynos_dp_device *dp,
* request without sending address
*/
if (!defer)
- retval = exynos_dp_select_i2c_device(dp,
- device_addr, reg_addr + i);
+ retval = exynos_dp_select_i2c_device(
+ dp, device_addr, reg_addr + i);
else
defer = 0;
@@ -828,15 +825,14 @@ int exynos_dp_read_bytes_from_i2c(struct
exynos_dp_device *dp,
retval = exynos_dp_start_aux_transaction(dp);
if (retval == 0)
break;
- else
- dev_dbg(dp->dev,
- "%s: Aux Transaction fail!\n",
- __func__);
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+ __func__);
}
/* Check if Rx sends defer */
reg = readl(dp->reg_base + EXYNOS_DP_AUX_RX_COMM);
if (reg == AUX_RX_COMM_AUX_DEFER ||
- reg == AUX_RX_COMM_I2C_DEFER) {
+ reg == AUX_RX_COMM_I2C_DEFER) {
dev_err(dp->dev, "Defer: %d\n\n", reg);
defer = 1;
}
@@ -901,7 +897,7 @@ void exynos_dp_enable_enhanced_mode(struct
exynos_dp_device *dp, bool enable)
}
void exynos_dp_set_training_pattern(struct exynos_dp_device *dp,
- enum pattern_set pattern)
+ enum pattern_set pattern)
{
u32 reg;
@@ -974,7 +970,7 @@ void exynos_dp_set_lane3_pre_emphasis(struct
exynos_dp_device *dp, u32 level)
}
void exynos_dp_set_lane0_link_training(struct exynos_dp_device *dp,
- u32 training_lane)
+ u32 training_lane)
{
u32 reg;
@@ -983,7 +979,7 @@ void exynos_dp_set_lane0_link_training(struct
exynos_dp_device *dp,
}
void exynos_dp_set_lane1_link_training(struct exynos_dp_device *dp,
- u32 training_lane)
+ u32 training_lane)
{
u32 reg;
@@ -992,7 +988,7 @@ void exynos_dp_set_lane1_link_training(struct
exynos_dp_device *dp,
}
void exynos_dp_set_lane2_link_training(struct exynos_dp_device *dp,
- u32 training_lane)
+ u32 training_lane)
{
u32 reg;
@@ -1001,7 +997,7 @@ void exynos_dp_set_lane2_link_training(struct
exynos_dp_device *dp,
}
void exynos_dp_set_lane3_link_training(struct exynos_dp_device *dp,
- u32 training_lane)
+ u32 training_lane)
{
u32 reg;
@@ -1125,9 +1121,9 @@ int
exynos_dp_is_slave_video_stream_clock_on(struct exynos_dp_device *dp)
}
void exynos_dp_set_video_cr_mn(struct exynos_dp_device *dp,
- enum clock_recovery_m_value_type type,
- u32 m_value,
- u32 n_value)
+ enum clock_recovery_m_value_type type,
+ u32 m_value,
+ u32 n_value)
{
u32 reg;
@@ -1221,7 +1217,7 @@ void exynos_dp_config_video_slave_mode(struct
exynos_dp_device *dp)
u32 reg;
reg = readl(dp->reg_base + EXYNOS_DP_FUNC_EN_1);
- reg &= ~(MASTER_VID_FUNC_EN_N|SLAVE_VID_FUNC_EN_N);
+ reg &= ~(MASTER_VID_FUNC_EN_N | SLAVE_VID_FUNC_EN_N);
reg |= MASTER_VID_FUNC_EN_N;
writel(reg, dp->reg_base + EXYNOS_DP_FUNC_EN_1);
--
2.1.2
make checkpatch.pl script happy
Signed-off-by: Yakir Yang <[email protected]>
---
drivers/gpu/drm/exynos/exynos_dp_core.c | 224 ++++++++++++++++----------------
drivers/gpu/drm/exynos/exynos_dp_core.h | 53 ++++----
drivers/gpu/drm/exynos/exynos_dp_reg.c | 100 +++++++-------
3 files changed, 185 insertions(+), 192 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c
index 172b800..a8097a4 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_core.c
+++ b/drivers/gpu/drm/exynos/exynos_dp_core.c
@@ -114,8 +114,8 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
/* Read Extension Flag, Number of 128-byte EDID extension blocks */
retval = exynos_dp_read_byte_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
- EDID_EXTENSION_FLAG,
- &extend_block);
+ EDID_EXTENSION_FLAG,
+ &extend_block);
if (retval)
return retval;
@@ -123,10 +123,11 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
dev_dbg(dp->dev, "EDID data includes a single extension!\n");
/* Read EDID data */
- retval = exynos_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
- EDID_HEADER_PATTERN,
- EDID_BLOCK_LENGTH,
- &edid[EDID_HEADER_PATTERN]);
+ retval =
+ exynos_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
+ EDID_HEADER_PATTERN,
+ EDID_BLOCK_LENGTH,
+ &edid[EDID_HEADER_PATTERN]);
if (retval != 0) {
dev_err(dp->dev, "EDID Read failed!\n");
return -EIO;
@@ -138,11 +139,11 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
}
/* Read additional EDID data */
- retval = exynos_dp_read_bytes_from_i2c(dp,
- I2C_EDID_DEVICE_ADDR,
- EDID_BLOCK_LENGTH,
- EDID_BLOCK_LENGTH,
- &edid[EDID_BLOCK_LENGTH]);
+ retval =
+ exynos_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
+ EDID_BLOCK_LENGTH,
+ EDID_BLOCK_LENGTH,
+ &edid[EDID_BLOCK_LENGTH]);
if (retval != 0) {
dev_err(dp->dev, "EDID Read failed!\n");
return -EIO;
@@ -154,24 +155,22 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
}
exynos_dp_read_byte_from_dpcd(dp, DP_TEST_REQUEST,
- &test_vector);
+ &test_vector);
if (test_vector & DP_TEST_LINK_EDID_READ) {
- exynos_dp_write_byte_to_dpcd(dp,
- DP_TEST_EDID_CHECKSUM,
+ exynos_dp_write_byte_to_dpcd(
+ dp, DP_TEST_EDID_CHECKSUM,
edid[EDID_BLOCK_LENGTH + EDID_CHECKSUM]);
- exynos_dp_write_byte_to_dpcd(dp,
- DP_TEST_RESPONSE,
+ exynos_dp_write_byte_to_dpcd(
+ dp, DP_TEST_RESPONSE,
DP_TEST_EDID_CHECKSUM_WRITE);
}
} else {
dev_info(dp->dev, "EDID data does not include any extensions.\n");
/* Read EDID data */
- retval = exynos_dp_read_bytes_from_i2c(dp,
- I2C_EDID_DEVICE_ADDR,
- EDID_HEADER_PATTERN,
- EDID_BLOCK_LENGTH,
- &edid[EDID_HEADER_PATTERN]);
+ retval = exynos_dp_read_bytes_from_i2c(
+ dp, I2C_EDID_DEVICE_ADDR, EDID_HEADER_PATTERN,
+ EDID_BLOCK_LENGTH, &edid[EDID_HEADER_PATTERN]);
if (retval != 0) {
dev_err(dp->dev, "EDID Read failed!\n");
return -EIO;
@@ -182,16 +181,15 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
return -EIO;
}
- exynos_dp_read_byte_from_dpcd(dp,
- DP_TEST_REQUEST,
- &test_vector);
+ exynos_dp_read_byte_from_dpcd(dp, DP_TEST_REQUEST,
+ &test_vector);
if (test_vector & DP_TEST_LINK_EDID_READ) {
- exynos_dp_write_byte_to_dpcd(dp,
- DP_TEST_EDID_CHECKSUM,
- edid[EDID_CHECKSUM]);
- exynos_dp_write_byte_to_dpcd(dp,
- DP_TEST_RESPONSE,
- DP_TEST_EDID_CHECKSUM_WRITE);
+ exynos_dp_write_byte_to_dpcd(
+ dp, DP_TEST_EDID_CHECKSUM,
+ edid[EDID_CHECKSUM]);
+ exynos_dp_write_byte_to_dpcd(
+ dp, DP_TEST_RESPONSE,
+ DP_TEST_EDID_CHECKSUM_WRITE);
}
}
@@ -206,8 +204,7 @@ static int exynos_dp_handle_edid(struct exynos_dp_device *dp)
int retval;
/* Read DPCD DP_DPCD_REV~RECEIVE_PORT1_CAP_1 */
- retval = exynos_dp_read_bytes_from_dpcd(dp, DP_DPCD_REV,
- 12, buf);
+ retval = exynos_dp_read_bytes_from_dpcd(dp, DP_DPCD_REV, 12, buf);
if (retval)
return retval;
@@ -222,19 +219,21 @@ static int exynos_dp_handle_edid(struct exynos_dp_device *dp)
}
static void exynos_dp_enable_rx_to_enhanced_mode(struct exynos_dp_device *dp,
- bool enable)
+ bool enable)
{
u8 data;
exynos_dp_read_byte_from_dpcd(dp, DP_LANE_COUNT_SET, &data);
if (enable)
- exynos_dp_write_byte_to_dpcd(dp, DP_LANE_COUNT_SET,
- DP_LANE_COUNT_ENHANCED_FRAME_EN |
- DPCD_LANE_COUNT_SET(data));
+ exynos_dp_write_byte_to_dpcd(
+ dp, DP_LANE_COUNT_SET,
+ DP_LANE_COUNT_ENHANCED_FRAME_EN |
+ DPCD_LANE_COUNT_SET(data));
else
- exynos_dp_write_byte_to_dpcd(dp, DP_LANE_COUNT_SET,
- DPCD_LANE_COUNT_SET(data));
+ exynos_dp_write_byte_to_dpcd(
+ dp, DP_LANE_COUNT_SET,
+ DPCD_LANE_COUNT_SET(data));
}
static int exynos_dp_is_enhanced_mode_available(struct exynos_dp_device *dp)
@@ -261,13 +260,12 @@ static void exynos_dp_training_pattern_dis(struct exynos_dp_device *dp)
{
exynos_dp_set_training_pattern(dp, DP_NONE);
- exynos_dp_write_byte_to_dpcd(dp,
- DP_TRAINING_PATTERN_SET,
- DP_TRAINING_PATTERN_DISABLE);
+ exynos_dp_write_byte_to_dpcd(dp, DP_TRAINING_PATTERN_SET,
+ DP_TRAINING_PATTERN_DISABLE);
}
static void exynos_dp_set_lane_lane_pre_emphasis(struct exynos_dp_device *dp,
- int pre_emphasis, int lane)
+ int pre_emphasis, int lane)
{
switch (lane) {
case 0:
@@ -307,15 +305,14 @@ static int exynos_dp_link_start(struct exynos_dp_device *dp)
/* Setup RX configuration */
buf[0] = dp->link_train.link_rate;
buf[1] = dp->link_train.lane_count;
- retval = exynos_dp_write_bytes_to_dpcd(dp, DP_LINK_BW_SET,
- 2, buf);
+ retval = exynos_dp_write_bytes_to_dpcd(dp, DP_LINK_BW_SET, 2, buf);
if (retval)
return retval;
/* Set TX pre-emphasis to minimum */
for (lane = 0; lane < lane_count; lane++)
- exynos_dp_set_lane_lane_pre_emphasis(dp,
- PRE_EMPHASIS_LEVEL_0, lane);
+ exynos_dp_set_lane_lane_pre_emphasis(dp, PRE_EMPHASIS_LEVEL_0,
+ lane);
/* Wait for PLL lock */
pll_tries = 0;
@@ -333,9 +330,9 @@ static int exynos_dp_link_start(struct exynos_dp_device *dp)
exynos_dp_set_training_pattern(dp, TRAINING_PTN1);
/* Set RX training pattern */
- retval = exynos_dp_write_byte_to_dpcd(dp,
- DP_TRAINING_PATTERN_SET,
- DP_LINK_SCRAMBLING_DISABLE | DP_TRAINING_PATTERN_1);
+ retval = exynos_dp_write_byte_to_dpcd(dp, DP_TRAINING_PATTERN_SET,
+ DP_LINK_SCRAMBLING_DISABLE |
+ DP_TRAINING_PATTERN_1);
if (retval)
return retval;
@@ -344,7 +341,7 @@ static int exynos_dp_link_start(struct exynos_dp_device *dp)
DP_TRAIN_VOLTAGE_SWING_LEVEL_0;
retval = exynos_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
- lane_count, buf);
+ lane_count, buf);
return retval;
}
@@ -352,7 +349,7 @@ static int exynos_dp_link_start(struct exynos_dp_device *dp)
static unsigned char exynos_dp_get_lane_status(u8 link_status[2], int lane)
{
int shift = (lane & 1) * 4;
- u8 link_value = link_status[lane>>1];
+ u8 link_value = link_status[lane >> 1];
return (link_value >> shift) & 0xf;
}
@@ -371,7 +368,7 @@ static int exynos_dp_clock_recovery_ok(u8 link_status[2], int lane_count)
}
static int exynos_dp_channel_eq_ok(u8 link_status[2], u8 link_align,
- int lane_count)
+ int lane_count)
{
int lane;
u8 lane_status;
@@ -390,10 +387,10 @@ static int exynos_dp_channel_eq_ok(u8 link_status[2], u8 link_align,
}
static unsigned char exynos_dp_get_adjust_request_voltage(u8 adjust_request[2],
- int lane)
+ int lane)
{
int shift = (lane & 1) * 4;
- u8 link_value = adjust_request[lane>>1];
+ u8 link_value = adjust_request[lane >> 1];
return (link_value >> shift) & 0x3;
}
@@ -403,13 +400,13 @@ static unsigned char exynos_dp_get_adjust_request_pre_emphasis(
int lane)
{
int shift = (lane & 1) * 4;
- u8 link_value = adjust_request[lane>>1];
+ u8 link_value = adjust_request[lane >> 1];
return ((link_value >> shift) & 0xc) >> 2;
}
static void exynos_dp_set_lane_link_training(struct exynos_dp_device *dp,
- u8 training_lane_set, int lane)
+ u8 training_lane_set, int lane)
{
switch (lane) {
case 0:
@@ -465,7 +462,7 @@ static void exynos_dp_reduce_link_rate(struct exynos_dp_device *dp)
}
static void exynos_dp_get_adjust_training_lane(struct exynos_dp_device *dp,
- u8 adjust_request[2])
+ u8 adjust_request[2])
{
int lane, lane_count;
u8 voltage_swing, pre_emphasis, training_lane;
@@ -498,13 +495,13 @@ static int exynos_dp_process_clock_recovery(struct exynos_dp_device *dp)
lane_count = dp->link_train.lane_count;
- retval = exynos_dp_read_bytes_from_dpcd(dp,
- DP_LANE0_1_STATUS, 2, link_status);
+ retval = exynos_dp_read_bytes_from_dpcd(dp, DP_LANE0_1_STATUS,
+ 2, link_status);
if (retval)
return retval;
- retval = exynos_dp_read_bytes_from_dpcd(dp,
- DP_ADJUST_REQUEST_LANE0_1, 2, adjust_request);
+ retval = exynos_dp_read_bytes_from_dpcd(dp, DP_ADJUST_REQUEST_LANE0_1,
+ 2, adjust_request);
if (retval)
return retval;
@@ -512,8 +509,8 @@ static int exynos_dp_process_clock_recovery(struct exynos_dp_device *dp)
/* set training pattern 2 for EQ */
exynos_dp_set_training_pattern(dp, TRAINING_PTN2);
- retval = exynos_dp_write_byte_to_dpcd(dp,
- DP_TRAINING_PATTERN_SET,
+ retval = exynos_dp_write_byte_to_dpcd(
+ dp, DP_TRAINING_PATTERN_SET,
DP_LINK_SCRAMBLING_DISABLE |
DP_TRAINING_PATTERN_2);
if (retval)
@@ -527,8 +524,9 @@ static int exynos_dp_process_clock_recovery(struct exynos_dp_device *dp)
dp, lane);
voltage_swing = exynos_dp_get_adjust_request_voltage(
adjust_request, lane);
- pre_emphasis = exynos_dp_get_adjust_request_pre_emphasis(
- adjust_request, lane);
+ pre_emphasis =
+ exynos_dp_get_adjust_request_pre_emphasis(
+ adjust_request, lane);
if (DPCD_VOLTAGE_SWING_GET(training_lane) ==
voltage_swing &&
@@ -551,11 +549,11 @@ static int exynos_dp_process_clock_recovery(struct exynos_dp_device *dp)
exynos_dp_get_adjust_training_lane(dp, adjust_request);
for (lane = 0; lane < lane_count; lane++)
- exynos_dp_set_lane_link_training(dp,
- dp->link_train.training_lane[lane], lane);
+ exynos_dp_set_lane_link_training(
+ dp, dp->link_train.training_lane[lane], lane);
- retval = exynos_dp_write_bytes_to_dpcd(dp,
- DP_TRAINING_LANE0_SET, lane_count,
+ retval = exynos_dp_write_bytes_to_dpcd(
+ dp, DP_TRAINING_LANE0_SET, lane_count,
dp->link_train.training_lane);
if (retval)
return retval;
@@ -573,8 +571,8 @@ static int exynos_dp_process_equalizer_training(struct exynos_dp_device *dp)
lane_count = dp->link_train.lane_count;
- retval = exynos_dp_read_bytes_from_dpcd(dp,
- DP_LANE0_1_STATUS, 2, link_status);
+ retval = exynos_dp_read_bytes_from_dpcd(dp, DP_LANE0_1_STATUS,
+ 2, link_status);
if (retval)
return retval;
@@ -583,13 +581,13 @@ static int exynos_dp_process_equalizer_training(struct exynos_dp_device *dp)
return -EIO;
}
- retval = exynos_dp_read_bytes_from_dpcd(dp,
- DP_ADJUST_REQUEST_LANE0_1, 2, adjust_request);
+ retval = exynos_dp_read_bytes_from_dpcd(dp, DP_ADJUST_REQUEST_LANE0_1,
+ 2, adjust_request);
if (retval)
return retval;
- retval = exynos_dp_read_byte_from_dpcd(dp,
- DP_LANE_ALIGN_STATUS_UPDATED, &link_align);
+ retval = exynos_dp_read_byte_from_dpcd(
+ dp, DP_LANE_ALIGN_STATUS_UPDATED, &link_align);
if (retval)
return retval;
@@ -628,17 +626,18 @@ static int exynos_dp_process_equalizer_training(struct exynos_dp_device *dp)
}
for (lane = 0; lane < lane_count; lane++)
- exynos_dp_set_lane_link_training(dp,
- dp->link_train.training_lane[lane], lane);
+ exynos_dp_set_lane_link_training(
+ dp, dp->link_train.training_lane[lane], lane);
retval = exynos_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
- lane_count, dp->link_train.training_lane);
+ lane_count,
+ dp->link_train.training_lane);
return retval;
}
static void exynos_dp_get_max_rx_bandwidth(struct exynos_dp_device *dp,
- u8 *bandwidth)
+ u8 *bandwidth)
{
u8 data;
@@ -651,7 +650,7 @@ static void exynos_dp_get_max_rx_bandwidth(struct exynos_dp_device *dp,
}
static void exynos_dp_get_max_rx_lane_count(struct exynos_dp_device *dp,
- u8 *lane_count)
+ u8 *lane_count)
{
u8 data;
@@ -664,8 +663,8 @@ static void exynos_dp_get_max_rx_lane_count(struct exynos_dp_device *dp,
}
static void exynos_dp_init_training(struct exynos_dp_device *dp,
- enum link_lane_count_type max_lane,
- enum link_rate_type max_rate)
+ enum link_lane_count_type max_lane,
+ enum link_rate_type max_rate)
{
/*
* MACRO_RST must be applied after the PLL_LOCK to avoid
@@ -678,7 +677,7 @@ static void exynos_dp_init_training(struct exynos_dp_device *dp,
exynos_dp_get_max_rx_lane_count(dp, &dp->link_train.lane_count);
if ((dp->link_train.link_rate != LINK_RATE_1_62GBPS) &&
- (dp->link_train.link_rate != LINK_RATE_2_70GBPS)) {
+ (dp->link_train.link_rate != LINK_RATE_2_70GBPS)) {
dev_err(dp->dev, "Rx Max Link Rate is abnormal :%x !\n",
dp->link_train.link_rate);
dp->link_train.link_rate = LINK_RATE_1_62GBPS;
@@ -738,8 +737,7 @@ static int exynos_dp_sw_link_training(struct exynos_dp_device *dp)
}
static int exynos_dp_set_link_train(struct exynos_dp_device *dp,
- u32 count,
- u32 bwtype)
+ u32 count, u32 bwtype)
{
int i;
int retval;
@@ -830,21 +828,19 @@ static void exynos_dp_enable_scramble(struct exynos_dp_device *dp, bool enable)
if (enable) {
exynos_dp_enable_scrambling(dp);
- exynos_dp_read_byte_from_dpcd(dp,
- DP_TRAINING_PATTERN_SET,
- &data);
- exynos_dp_write_byte_to_dpcd(dp,
- DP_TRAINING_PATTERN_SET,
+ exynos_dp_read_byte_from_dpcd(dp, DP_TRAINING_PATTERN_SET,
+ &data);
+ exynos_dp_write_byte_to_dpcd(
+ dp, DP_TRAINING_PATTERN_SET,
(u8)(data & ~DP_LINK_SCRAMBLING_DISABLE));
} else {
exynos_dp_disable_scrambling(dp);
- exynos_dp_read_byte_from_dpcd(dp,
- DP_TRAINING_PATTERN_SET,
- &data);
- exynos_dp_write_byte_to_dpcd(dp,
- DP_TRAINING_PATTERN_SET,
- (u8)(data | DP_LINK_SCRAMBLING_DISABLE));
+ exynos_dp_read_byte_from_dpcd(dp, DP_TRAINING_PATTERN_SET,
+ &data);
+ exynos_dp_write_byte_to_dpcd(
+ dp, DP_TRAINING_PATTERN_SET,
+ (u8)(data | DP_LINK_SCRAMBLING_DISABLE));
}
}
@@ -915,7 +911,7 @@ static void exynos_dp_commit(struct exynos_drm_display *display)
}
ret = exynos_dp_set_link_train(dp, dp->video_info->lane_count,
- dp->video_info->link_rate);
+ dp->video_info->link_rate);
if (ret) {
dev_err(dp->dev, "unable to do link train\n");
return;
@@ -1004,7 +1000,7 @@ static struct drm_connector_helper_funcs exynos_dp_connector_helper_funcs = {
/* returns the number of bridges attached */
static int exynos_drm_attach_lcd_bridge(struct exynos_dp_device *dp,
- struct drm_encoder *encoder)
+ struct drm_encoder *encoder)
{
int ret;
@@ -1020,7 +1016,7 @@ static int exynos_drm_attach_lcd_bridge(struct exynos_dp_device *dp,
}
static int exynos_dp_create_connector(struct exynos_drm_display *display,
- struct drm_encoder *encoder)
+ struct drm_encoder *encoder)
{
struct exynos_dp_device *dp = display_to_dp(display);
struct drm_connector *connector = &dp->connector;
@@ -1038,7 +1034,8 @@ static int exynos_dp_create_connector(struct exynos_drm_display *display,
connector->polled = DRM_CONNECTOR_POLL_HPD;
ret = drm_connector_init(dp->drm_dev, connector,
- &exynos_dp_connector_funcs, DRM_MODE_CONNECTOR_eDP);
+ &exynos_dp_connector_funcs,
+ DRM_MODE_CONNECTOR_eDP);
if (ret) {
DRM_ERROR("Failed to initialize connector with drm\n");
return ret;
@@ -1148,8 +1145,8 @@ static struct video_info *exynos_dp_dt_parse_pdata(struct device *dev)
struct device_node *dp_node = dev->of_node;
struct video_info *dp_video_config;
- dp_video_config = devm_kzalloc(dev,
- sizeof(*dp_video_config), GFP_KERNEL);
+ dp_video_config = devm_kzalloc(dev, sizeof(*dp_video_config),
+ GFP_KERNEL);
if (!dp_video_config)
return ERR_PTR(-ENOMEM);
@@ -1163,37 +1160,37 @@ static struct video_info *exynos_dp_dt_parse_pdata(struct device *dev)
of_property_read_bool(dp_node, "interlaced");
if (of_property_read_u32(dp_node, "samsung,color-space",
- &dp_video_config->color_space)) {
+ &dp_video_config->color_space)) {
dev_err(dev, "failed to get color-space\n");
return ERR_PTR(-EINVAL);
}
if (of_property_read_u32(dp_node, "samsung,dynamic-range",
- &dp_video_config->dynamic_range)) {
+ &dp_video_config->dynamic_range)) {
dev_err(dev, "failed to get dynamic-range\n");
return ERR_PTR(-EINVAL);
}
if (of_property_read_u32(dp_node, "samsung,ycbcr-coeff",
- &dp_video_config->ycbcr_coeff)) {
+ &dp_video_config->ycbcr_coeff)) {
dev_err(dev, "failed to get ycbcr-coeff\n");
return ERR_PTR(-EINVAL);
}
if (of_property_read_u32(dp_node, "samsung,color-depth",
- &dp_video_config->color_depth)) {
+ &dp_video_config->color_depth)) {
dev_err(dev, "failed to get color-depth\n");
return ERR_PTR(-EINVAL);
}
if (of_property_read_u32(dp_node, "samsung,link-rate",
- &dp_video_config->link_rate)) {
+ &dp_video_config->link_rate)) {
dev_err(dev, "failed to get link-rate\n");
return ERR_PTR(-EINVAL);
}
if (of_property_read_u32(dp_node, "samsung,lane-count",
- &dp_video_config->lane_count)) {
+ &dp_video_config->lane_count)) {
dev_err(dev, "failed to get lane-count\n");
return ERR_PTR(-EINVAL);
}
@@ -1206,7 +1203,7 @@ static int exynos_dp_dt_parse_panel(struct exynos_dp_device *dp)
int ret;
ret = of_get_videomode(dp->dev->of_node, &dp->priv.vm,
- OF_USE_NATIVE_MODE);
+ OF_USE_NATIVE_MODE);
if (ret) {
DRM_ERROR("failed: of_get_videomode() : %d\n", ret);
return ret;
@@ -1302,7 +1299,7 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
exynos_dp_init_dp(dp);
ret = devm_request_irq(&pdev->dev, dp->irq, exynos_dp_irq_handler,
- irq_flags, "exynos-dp", dp);
+ irq_flags, "exynos-dp", dp);
if (ret) {
dev_err(&pdev->dev, "failed to request irq\n");
return ret;
@@ -1315,7 +1312,7 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
}
static void exynos_dp_unbind(struct device *dev, struct device *master,
- void *data)
+ void *data)
{
struct exynos_dp_device *dp = dev_get_drvdata(dev);
@@ -1334,7 +1331,7 @@ static int exynos_dp_probe(struct platform_device *pdev)
struct exynos_dp_device *dp;
dp = devm_kzalloc(&pdev->dev, sizeof(struct exynos_dp_device),
- GFP_KERNEL);
+ GFP_KERNEL);
if (!dp)
return -ENOMEM;
@@ -1358,8 +1355,9 @@ static int exynos_dp_probe(struct platform_device *pdev)
of_node_put(bridge_node);
if (!dp->bridge)
return -EPROBE_DEFER;
- } else
+ } else {
return -EPROBE_DEFER;
+ }
}
return component_add(&pdev->dev, &exynos_dp_ops);
diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.h b/drivers/gpu/drm/exynos/exynos_dp_core.h
index a4e7996..c321ad5 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_core.h
+++ b/drivers/gpu/drm/exynos/exynos_dp_core.h
@@ -180,8 +180,8 @@ void exynos_dp_config_interrupt(struct exynos_dp_device *dp);
enum pll_status exynos_dp_get_pll_lock_status(struct exynos_dp_device *dp);
void exynos_dp_set_pll_power_down(struct exynos_dp_device *dp, bool enable);
void exynos_dp_set_analog_power_down(struct exynos_dp_device *dp,
- enum analog_power_block block,
- bool enable);
+ enum analog_power_block block,
+ bool enable);
void exynos_dp_init_analog_func(struct exynos_dp_device *dp);
void exynos_dp_init_hpd(struct exynos_dp_device *dp);
enum dp_irq_type exynos_dp_get_irq_type(struct exynos_dp_device *dp);
@@ -192,50 +192,50 @@ int exynos_dp_get_plug_in_status(struct exynos_dp_device *dp);
void exynos_dp_enable_sw_function(struct exynos_dp_device *dp);
int exynos_dp_start_aux_transaction(struct exynos_dp_device *dp);
int exynos_dp_write_byte_to_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned char data);
+ unsigned int reg_addr,
+ unsigned char data);
int exynos_dp_read_byte_from_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned char *data);
+ unsigned int reg_addr,
+ unsigned char *data);
int exynos_dp_write_bytes_to_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned int count,
- unsigned char data[]);
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char data[]);
int exynos_dp_read_bytes_from_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned int count,
- unsigned char data[]);
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char data[]);
int exynos_dp_select_i2c_device(struct exynos_dp_device *dp,
unsigned int device_addr,
unsigned int reg_addr);
int exynos_dp_read_byte_from_i2c(struct exynos_dp_device *dp,
- unsigned int device_addr,
- unsigned int reg_addr,
- unsigned int *data);
+ unsigned int device_addr,
+ unsigned int reg_addr,
+ unsigned int *data);
int exynos_dp_read_bytes_from_i2c(struct exynos_dp_device *dp,
- unsigned int device_addr,
- unsigned int reg_addr,
- unsigned int count,
- unsigned char edid[]);
+ unsigned int device_addr,
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char edid[]);
void exynos_dp_set_link_bandwidth(struct exynos_dp_device *dp, u32 bwtype);
void exynos_dp_get_link_bandwidth(struct exynos_dp_device *dp, u32 *bwtype);
void exynos_dp_set_lane_count(struct exynos_dp_device *dp, u32 count);
void exynos_dp_get_lane_count(struct exynos_dp_device *dp, u32 *count);
void exynos_dp_enable_enhanced_mode(struct exynos_dp_device *dp, bool enable);
void exynos_dp_set_training_pattern(struct exynos_dp_device *dp,
- enum pattern_set pattern);
+ enum pattern_set pattern);
void exynos_dp_set_lane0_pre_emphasis(struct exynos_dp_device *dp, u32 level);
void exynos_dp_set_lane1_pre_emphasis(struct exynos_dp_device *dp, u32 level);
void exynos_dp_set_lane2_pre_emphasis(struct exynos_dp_device *dp, u32 level);
void exynos_dp_set_lane3_pre_emphasis(struct exynos_dp_device *dp, u32 level);
void exynos_dp_set_lane0_link_training(struct exynos_dp_device *dp,
- u32 training_lane);
+ u32 training_lane);
void exynos_dp_set_lane1_link_training(struct exynos_dp_device *dp,
- u32 training_lane);
+ u32 training_lane);
void exynos_dp_set_lane2_link_training(struct exynos_dp_device *dp,
- u32 training_lane);
+ u32 training_lane);
void exynos_dp_set_lane3_link_training(struct exynos_dp_device *dp,
- u32 training_lane);
+ u32 training_lane);
u32 exynos_dp_get_lane0_link_training(struct exynos_dp_device *dp);
u32 exynos_dp_get_lane1_link_training(struct exynos_dp_device *dp);
u32 exynos_dp_get_lane2_link_training(struct exynos_dp_device *dp);
@@ -246,9 +246,8 @@ void exynos_dp_init_video(struct exynos_dp_device *dp);
void exynos_dp_set_video_color_format(struct exynos_dp_device *dp);
int exynos_dp_is_slave_video_stream_clock_on(struct exynos_dp_device *dp);
void exynos_dp_set_video_cr_mn(struct exynos_dp_device *dp,
- enum clock_recovery_m_value_type type,
- u32 m_value,
- u32 n_value);
+ enum clock_recovery_m_value_type type,
+ u32 m_value, u32 n_value);
void exynos_dp_set_video_timing_mode(struct exynos_dp_device *dp, u32 type);
void exynos_dp_enable_video_master(struct exynos_dp_device *dp, bool enable);
void exynos_dp_start_video(struct exynos_dp_device *dp);
diff --git a/drivers/gpu/drm/exynos/exynos_dp_reg.c b/drivers/gpu/drm/exynos/exynos_dp_reg.c
index c1f87a2..9aa483d 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_reg.c
+++ b/drivers/gpu/drm/exynos/exynos_dp_reg.c
@@ -202,8 +202,8 @@ void exynos_dp_set_pll_power_down(struct exynos_dp_device *dp, bool enable)
}
void exynos_dp_set_analog_power_down(struct exynos_dp_device *dp,
- enum analog_power_block block,
- bool enable)
+ enum analog_power_block block,
+ bool enable)
{
u32 reg;
@@ -399,8 +399,8 @@ void exynos_dp_init_aux(struct exynos_dp_device *dp)
exynos_dp_reset_aux(dp);
/* Disable AUX transaction H/W retry */
- reg = AUX_BIT_PERIOD_EXPECTED_DELAY(3) | AUX_HW_RETRY_COUNT_SEL(0)|
- AUX_HW_RETRY_INTERVAL_600_MICROSECONDS;
+ reg = AUX_BIT_PERIOD_EXPECTED_DELAY(3) | AUX_HW_RETRY_COUNT_SEL(0) |
+ AUX_HW_RETRY_INTERVAL_600_MICROSECONDS;
writel(reg, dp->reg_base + EXYNOS_DP_AUX_HW_RETRY_CTL);
/* Receive AUX Channel DEFER commands equal to DEFFER_COUNT*64 */
@@ -483,8 +483,8 @@ int exynos_dp_start_aux_transaction(struct exynos_dp_device *dp)
}
int exynos_dp_write_byte_to_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned char data)
+ unsigned int reg_addr,
+ unsigned char data)
{
u32 reg;
int i;
@@ -519,17 +519,16 @@ int exynos_dp_write_byte_to_dpcd(struct exynos_dp_device *dp,
retval = exynos_dp_start_aux_transaction(dp);
if (retval == 0)
break;
- else
- dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
- __func__);
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
}
return retval;
}
int exynos_dp_read_byte_from_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned char *data)
+ unsigned int reg_addr,
+ unsigned char *data)
{
u32 reg;
int i;
@@ -560,9 +559,8 @@ int exynos_dp_read_byte_from_dpcd(struct exynos_dp_device *dp,
retval = exynos_dp_start_aux_transaction(dp);
if (retval == 0)
break;
- else
- dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
- __func__);
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
}
/* Read data buffer */
@@ -573,9 +571,9 @@ int exynos_dp_read_byte_from_dpcd(struct exynos_dp_device *dp,
}
int exynos_dp_write_bytes_to_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned int count,
- unsigned char data[])
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char data[])
{
u32 reg;
unsigned int start_offset;
@@ -625,9 +623,9 @@ int exynos_dp_write_bytes_to_dpcd(struct exynos_dp_device *dp,
retval = exynos_dp_start_aux_transaction(dp);
if (retval == 0)
break;
- else
- dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
- __func__);
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+ __func__);
}
start_offset += cur_data_count;
@@ -637,9 +635,9 @@ int exynos_dp_write_bytes_to_dpcd(struct exynos_dp_device *dp,
}
int exynos_dp_read_bytes_from_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned int count,
- unsigned char data[])
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char data[])
{
u32 reg;
unsigned int start_offset;
@@ -683,9 +681,9 @@ int exynos_dp_read_bytes_from_dpcd(struct exynos_dp_device *dp,
retval = exynos_dp_start_aux_transaction(dp);
if (retval == 0)
break;
- else
- dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
- __func__);
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+ __func__);
}
for (cur_data_idx = 0; cur_data_idx < cur_data_count;
@@ -736,9 +734,9 @@ int exynos_dp_select_i2c_device(struct exynos_dp_device *dp,
}
int exynos_dp_read_byte_from_i2c(struct exynos_dp_device *dp,
- unsigned int device_addr,
- unsigned int reg_addr,
- unsigned int *data)
+ unsigned int device_addr,
+ unsigned int reg_addr,
+ unsigned int *data)
{
u32 reg;
int i;
@@ -767,9 +765,8 @@ int exynos_dp_read_byte_from_i2c(struct exynos_dp_device *dp,
retval = exynos_dp_start_aux_transaction(dp);
if (retval == 0)
break;
- else
- dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
- __func__);
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
}
/* Read data */
@@ -780,10 +777,10 @@ int exynos_dp_read_byte_from_i2c(struct exynos_dp_device *dp,
}
int exynos_dp_read_bytes_from_i2c(struct exynos_dp_device *dp,
- unsigned int device_addr,
- unsigned int reg_addr,
- unsigned int count,
- unsigned char edid[])
+ unsigned int device_addr,
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char edid[])
{
u32 reg;
unsigned int i, j;
@@ -807,8 +804,8 @@ int exynos_dp_read_bytes_from_i2c(struct exynos_dp_device *dp,
* request without sending address
*/
if (!defer)
- retval = exynos_dp_select_i2c_device(dp,
- device_addr, reg_addr + i);
+ retval = exynos_dp_select_i2c_device(
+ dp, device_addr, reg_addr + i);
else
defer = 0;
@@ -828,15 +825,14 @@ int exynos_dp_read_bytes_from_i2c(struct exynos_dp_device *dp,
retval = exynos_dp_start_aux_transaction(dp);
if (retval == 0)
break;
- else
- dev_dbg(dp->dev,
- "%s: Aux Transaction fail!\n",
- __func__);
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+ __func__);
}
/* Check if Rx sends defer */
reg = readl(dp->reg_base + EXYNOS_DP_AUX_RX_COMM);
if (reg == AUX_RX_COMM_AUX_DEFER ||
- reg == AUX_RX_COMM_I2C_DEFER) {
+ reg == AUX_RX_COMM_I2C_DEFER) {
dev_err(dp->dev, "Defer: %d\n\n", reg);
defer = 1;
}
@@ -901,7 +897,7 @@ void exynos_dp_enable_enhanced_mode(struct exynos_dp_device *dp, bool enable)
}
void exynos_dp_set_training_pattern(struct exynos_dp_device *dp,
- enum pattern_set pattern)
+ enum pattern_set pattern)
{
u32 reg;
@@ -974,7 +970,7 @@ void exynos_dp_set_lane3_pre_emphasis(struct exynos_dp_device *dp, u32 level)
}
void exynos_dp_set_lane0_link_training(struct exynos_dp_device *dp,
- u32 training_lane)
+ u32 training_lane)
{
u32 reg;
@@ -983,7 +979,7 @@ void exynos_dp_set_lane0_link_training(struct exynos_dp_device *dp,
}
void exynos_dp_set_lane1_link_training(struct exynos_dp_device *dp,
- u32 training_lane)
+ u32 training_lane)
{
u32 reg;
@@ -992,7 +988,7 @@ void exynos_dp_set_lane1_link_training(struct exynos_dp_device *dp,
}
void exynos_dp_set_lane2_link_training(struct exynos_dp_device *dp,
- u32 training_lane)
+ u32 training_lane)
{
u32 reg;
@@ -1001,7 +997,7 @@ void exynos_dp_set_lane2_link_training(struct exynos_dp_device *dp,
}
void exynos_dp_set_lane3_link_training(struct exynos_dp_device *dp,
- u32 training_lane)
+ u32 training_lane)
{
u32 reg;
@@ -1125,9 +1121,9 @@ int exynos_dp_is_slave_video_stream_clock_on(struct exynos_dp_device *dp)
}
void exynos_dp_set_video_cr_mn(struct exynos_dp_device *dp,
- enum clock_recovery_m_value_type type,
- u32 m_value,
- u32 n_value)
+ enum clock_recovery_m_value_type type,
+ u32 m_value,
+ u32 n_value)
{
u32 reg;
@@ -1221,7 +1217,7 @@ void exynos_dp_config_video_slave_mode(struct exynos_dp_device *dp)
u32 reg;
reg = readl(dp->reg_base + EXYNOS_DP_FUNC_EN_1);
- reg &= ~(MASTER_VID_FUNC_EN_N|SLAVE_VID_FUNC_EN_N);
+ reg &= ~(MASTER_VID_FUNC_EN_N | SLAVE_VID_FUNC_EN_N);
reg |= MASTER_VID_FUNC_EN_N;
writel(reg, dp->reg_base + EXYNOS_DP_FUNC_EN_1);
--
2.1.2
In order to move exynos dp code to bridge directory,
we need to convert driver drm bridge mode first. As
dp driver already have a ptn3460 bridge, so we need
to move ptn bridge to the next bridge of dp bridge.
Signed-off-by: Yakir Yang <[email protected]>
---
drivers/gpu/drm/exynos/exynos_dp_core.c | 196 ++++++++++++++++++++------------
drivers/gpu/drm/exynos/exynos_dp_core.h | 2 +
2 files changed, 126 insertions(+), 72 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c
index a8097a4..aa99e23 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_core.c
+++ b/drivers/gpu/drm/exynos/exynos_dp_core.c
@@ -3,6 +3,7 @@
*
* Copyright (C) 2012 Samsung Electronics Co., Ltd.
* Author: Jingoo Han <[email protected]>
+ * Yakir Yang <[email protected]>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
@@ -998,59 +999,6 @@ static struct drm_connector_helper_funcs exynos_dp_connector_helper_funcs = {
.best_encoder = exynos_dp_best_encoder,
};
-/* returns the number of bridges attached */
-static int exynos_drm_attach_lcd_bridge(struct exynos_dp_device *dp,
- struct drm_encoder *encoder)
-{
- int ret;
-
- encoder->bridge = dp->bridge;
- dp->bridge->encoder = encoder;
- ret = drm_bridge_attach(encoder->dev, dp->bridge);
- if (ret) {
- DRM_ERROR("Failed to attach bridge to drm\n");
- return ret;
- }
-
- return 0;
-}
-
-static int exynos_dp_create_connector(struct exynos_drm_display *display,
- struct drm_encoder *encoder)
-{
- struct exynos_dp_device *dp = display_to_dp(display);
- struct drm_connector *connector = &dp->connector;
- int ret;
-
- dp->encoder = encoder;
-
- /* Pre-empt DP connector creation if there's a bridge */
- if (dp->bridge) {
- ret = exynos_drm_attach_lcd_bridge(dp, encoder);
- if (!ret)
- return 0;
- }
-
- connector->polled = DRM_CONNECTOR_POLL_HPD;
-
- ret = drm_connector_init(dp->drm_dev, connector,
- &exynos_dp_connector_funcs,
- DRM_MODE_CONNECTOR_eDP);
- if (ret) {
- DRM_ERROR("Failed to initialize connector with drm\n");
- return ret;
- }
-
- drm_connector_helper_add(connector, &exynos_dp_connector_helper_funcs);
- drm_connector_register(connector);
- drm_mode_connector_attach_encoder(connector, encoder);
-
- if (dp->panel)
- ret = drm_panel_attach(dp->panel, &dp->connector);
-
- return ret;
-}
-
static void exynos_dp_phy_init(struct exynos_dp_device *dp)
{
if (dp->phy)
@@ -1115,23 +1063,126 @@ static void exynos_dp_poweroff(struct exynos_dp_device *dp)
}
}
-static void exynos_dp_dpms(struct exynos_drm_display *display, int mode)
+/* returns the number of bridges attached */
+static int exynos_drm_attach_lcd_bridge(struct exynos_dp_device *dp,
+ struct drm_encoder *encoder)
+{
+ int ret;
+
+ dp->bridge->next = dp->ptn_bridge;
+ dp->bridge->encoder = encoder;
+ ret = drm_bridge_attach(encoder->dev, dp->bridge);
+ if (ret) {
+ DRM_ERROR("Failed to attach ptn bridge to drm\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static int exynos_dp_bridge_attach(struct drm_bridge *bridge)
+{
+
+ struct exynos_dp_device *dp = bridge->driver_private;
+ struct drm_encoder *encoder = dp->encoder;
+ struct drm_connector *connector = &dp->connector;
+ int ret;
+
+ if (!bridge->encoder) {
+ DRM_ERROR("Parent encoder object not found");
+ return -ENODEV;
+ }
+
+ encoder->bridge = bridge;
+
+ /* Pre-empt DP connector creation if there's a bridge */
+ if (dp->ptn_bridge) {
+ ret = exynos_drm_attach_lcd_bridge(dp, encoder);
+ if (ret)
+ return -ENODEV;
+ }
+
+ connector->polled = DRM_CONNECTOR_POLL_HPD;
+
+ ret = drm_connector_init(dp->drm_dev, connector,
+ &exynos_dp_connector_funcs, DRM_MODE_CONNECTOR_eDP);
+ if (ret) {
+ DRM_ERROR("Failed to initialize connector with drm\n");
+ return ret;
+ }
+
+ drm_connector_helper_add(connector, &exynos_dp_connector_helper_funcs);
+ drm_connector_register(connector);
+ drm_mode_connector_attach_encoder(connector, encoder);
+
+ if (dp->panel)
+ ret = drm_panel_attach(dp->panel, &dp->connector);
+
+ return ret;
+}
+
+static void exynos_dp_bridge_nop(struct drm_bridge *bridge)
+{
+ /* do nothing */
+}
+
+static void exynos_dp_bridge_enable(struct drm_bridge *bridge)
+{
+ struct exynos_dp_device *dp = bridge->driver_private;
+
+ exynos_dp_poweron(dp);
+ dp->dpms_mode = DRM_MODE_DPMS_ON;
+}
+
+static void exynos_dp_bridge_disable(struct drm_bridge *bridge)
+{
+ struct exynos_dp_device *dp = bridge->driver_private;
+
+ exynos_dp_poweroff(dp);
+ dp->dpms_mode = DRM_MODE_DPMS_OFF;
+}
+
+static const struct drm_bridge_funcs exynos_dp_bridge_funcs = {
+ .enable = exynos_dp_bridge_enable,
+ .disable = exynos_dp_bridge_disable,
+ .pre_enable = exynos_dp_bridge_nop,
+ .post_disable = exynos_dp_bridge_nop,
+ .attach = exynos_dp_bridge_attach,
+};
+
+static int exynos_dp_create_connector(struct exynos_drm_display *display,
+ struct drm_encoder *encoder)
{
struct exynos_dp_device *dp = display_to_dp(display);
+ struct drm_device *drm_dev = dp->drm_dev;
+ struct drm_bridge *bridge;
+ int ret;
- switch (mode) {
- case DRM_MODE_DPMS_ON:
- exynos_dp_poweron(dp);
- break;
- case DRM_MODE_DPMS_STANDBY:
- case DRM_MODE_DPMS_SUSPEND:
- case DRM_MODE_DPMS_OFF:
- exynos_dp_poweroff(dp);
- break;
- default:
- break;
+ bridge = devm_kzalloc(drm_dev->dev, sizeof(*bridge), GFP_KERNEL);
+ if (!bridge) {
+ DRM_ERROR("failed to allocate for drm bridge\n");
+ return -ENOMEM;
}
- dp->dpms_mode = mode;
+
+ dp->bridge = bridge;
+ dp->encoder = encoder;
+
+ bridge->driver_private = dp;
+ bridge->encoder = dp->encoder;
+ bridge->funcs = &exynos_dp_bridge_funcs;
+
+ ret = drm_bridge_attach(drm_dev, bridge);
+ if (ret) {
+ DRM_ERROR("failed to attach drm bridge\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void exynos_dp_dpms(struct exynos_drm_display *display, int mode)
+{
+ /* do nothing */
}
static struct exynos_drm_display_ops exynos_dp_display_ops = {
@@ -1243,7 +1294,7 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
}
}
- if (!dp->panel && !dp->bridge) {
+ if (!dp->panel && !dp->ptn_bridge) {
ret = exynos_dp_dt_parse_panel(dp);
if (ret)
return ret;
@@ -1316,7 +1367,7 @@ static void exynos_dp_unbind(struct device *dev, struct device *master,
{
struct exynos_dp_device *dp = dev_get_drvdata(dev);
- exynos_dp_dpms(&dp->display, DRM_MODE_DPMS_OFF);
+ exynos_dp_bridge_disable(dp->bridge);
}
static const struct component_ops exynos_dp_ops = {
@@ -1351,9 +1402,9 @@ static int exynos_dp_probe(struct platform_device *pdev)
if (endpoint) {
bridge_node = of_graph_get_remote_port_parent(endpoint);
if (bridge_node) {
- dp->bridge = of_drm_find_bridge(bridge_node);
+ dp->ptn_bridge = of_drm_find_bridge(bridge_node);
of_node_put(bridge_node);
- if (!dp->bridge)
+ if (!dp->ptn_bridge)
return -EPROBE_DEFER;
} else {
return -EPROBE_DEFER;
@@ -1375,7 +1426,7 @@ static int exynos_dp_suspend(struct device *dev)
{
struct exynos_dp_device *dp = dev_get_drvdata(dev);
- exynos_dp_dpms(&dp->display, DRM_MODE_DPMS_OFF);
+ exynos_dp_bridge_disable(dp->bridge);
return 0;
}
@@ -1383,7 +1434,7 @@ static int exynos_dp_resume(struct device *dev)
{
struct exynos_dp_device *dp = dev_get_drvdata(dev);
- exynos_dp_dpms(&dp->display, DRM_MODE_DPMS_ON);
+ exynos_dp_bridge_enable(dp->bridge);
return 0;
}
#endif
@@ -1410,5 +1461,6 @@ struct platform_driver dp_driver = {
};
MODULE_AUTHOR("Jingoo Han <[email protected]>");
+MODULE_AUTHOR("Yakir Yang <[email protected]>");
MODULE_DESCRIPTION("Samsung SoC DP Driver");
MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.h b/drivers/gpu/drm/exynos/exynos_dp_core.h
index c321ad5..f2584b8 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_core.h
+++ b/drivers/gpu/drm/exynos/exynos_dp_core.h
@@ -3,6 +3,7 @@
*
* Copyright (C) 2012 Samsung Electronics Co., Ltd.
* Author: Jingoo Han <[email protected]>
+ * Yakir Yang <[email protected]>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
@@ -154,6 +155,7 @@ struct exynos_dp_device {
struct drm_encoder *encoder;
struct drm_panel *panel;
struct drm_bridge *bridge;
+ struct drm_bridge *ptn_bridge;
struct clk *clock;
unsigned int irq;
void __iomem *reg_base;
--
2.1.2
Split the dp core driver from exynos directory to bridge
directory, and rename the core driver to analogix_dp_*,
leave the platform code to analogix_dp-exynos.
Signed-off-by: Yakir Yang <[email protected]>
---
drivers/gpu/drm/bridge/Kconfig | 5 +
drivers/gpu/drm/bridge/Makefile | 1 +
.../exynos_dp_core.c => bridge/analogix_dp_core.c} | 751 +++++-------
drivers/gpu/drm/bridge/analogix_dp_core.h | 286 +++++
drivers/gpu/drm/bridge/analogix_dp_reg.c | 1266 ++++++++++++++++++++
.../exynos_dp_reg.h => bridge/analogix_dp_reg.h} | 260 ++--
drivers/gpu/drm/exynos/Kconfig | 5 +-
drivers/gpu/drm/exynos/Makefile | 2 +-
drivers/gpu/drm/exynos/analogix_dp-exynos.c | 240 ++++
drivers/gpu/drm/exynos/exynos_dp_core.h | 283 -----
include/drm/bridge/analogix_dp.h | 22 +
11 files changed, 2287 insertions(+), 834 deletions(-)
rename drivers/gpu/drm/{exynos/exynos_dp_core.c => bridge/analogix_dp_core.c} (54%)
create mode 100644 drivers/gpu/drm/bridge/analogix_dp_core.h
create mode 100644 drivers/gpu/drm/bridge/analogix_dp_reg.c
rename drivers/gpu/drm/{exynos/exynos_dp_reg.h => bridge/analogix_dp_reg.h} (63%)
create mode 100644 drivers/gpu/drm/exynos/analogix_dp-exynos.c
delete mode 100644 drivers/gpu/drm/exynos/exynos_dp_core.h
create mode 100644 include/drm/bridge/analogix_dp.h
diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig
index acef322..c7638b5 100644
--- a/drivers/gpu/drm/bridge/Kconfig
+++ b/drivers/gpu/drm/bridge/Kconfig
@@ -3,6 +3,11 @@ config DRM_DW_HDMI
depends on DRM
select DRM_KMS_HELPER
+config DRM_ANALOGIX_DP
+ tristate
+ depends on DRM
+ select DRM_KMS_HELPER
+
config DRM_PTN3460
tristate "PTN3460 DP/LVDS bridge"
depends on DRM
diff --git a/drivers/gpu/drm/bridge/Makefile b/drivers/gpu/drm/bridge/Makefile
index 8dfebd9..a7ee559 100644
--- a/drivers/gpu/drm/bridge/Makefile
+++ b/drivers/gpu/drm/bridge/Makefile
@@ -3,3 +3,4 @@ ccflags-y := -Iinclude/drm
obj-$(CONFIG_DRM_PS8622) += ps8622.o
obj-$(CONFIG_DRM_PTN3460) += ptn3460.o
obj-$(CONFIG_DRM_DW_HDMI) += dw_hdmi.o
+obj-$(CONFIG_DRM_ANALOGIX_DP) += analogix_dp_core.o analogix_dp_reg.o
diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/bridge/analogix_dp_core.c
similarity index 54%
rename from drivers/gpu/drm/exynos/exynos_dp_core.c
rename to drivers/gpu/drm/bridge/analogix_dp_core.c
index aa99e23..28724d4 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix_dp_core.c
@@ -1,7 +1,8 @@
/*
- * Samsung SoC DP (Display Port) interface driver.
+ * Analogix Core DP (Display Port) interface driver.
*
* Copyright (C) 2012 Samsung Electronics Co., Ltd.
+ * Copyright (C) FuZhou Rockchip Electronics Co., Ltd.
* Author: Jingoo Han <[email protected]>
* Yakir Yang <[email protected]>
*
@@ -32,51 +33,42 @@
#include <drm/drm_atomic_helper.h>
#include <drm/drm_panel.h>
-#include "exynos_dp_core.h"
+#include <drm/bridge/analogix_dp.h>
-#define ctx_from_connector(c) container_of(c, struct exynos_dp_device, \
- connector)
+#include "analogix_dp_core.h"
-static inline struct exynos_drm_crtc *dp_to_crtc(struct exynos_dp_device *dp)
-{
- return to_exynos_crtc(dp->encoder->crtc);
-}
-
-static inline struct exynos_dp_device *
-display_to_dp(struct exynos_drm_display *d)
-{
- return container_of(d, struct exynos_dp_device, display);
-}
+#define connector_to_dp(c) container_of(c, struct analogix_dp_device, \
+ connector)
struct bridge_init {
struct i2c_client *client;
struct device_node *node;
};
-static void exynos_dp_init_dp(struct exynos_dp_device *dp)
+static void analogix_dp_init_dp(struct analogix_dp_device *dp)
{
- exynos_dp_reset(dp);
+ analogix_dp_reset(dp);
- exynos_dp_swreset(dp);
+ analogix_dp_swreset(dp);
- exynos_dp_init_analog_param(dp);
- exynos_dp_init_interrupt(dp);
+ analogix_dp_init_analog_param(dp);
+ analogix_dp_init_interrupt(dp);
/* SW defined function Normal operation */
- exynos_dp_enable_sw_function(dp);
+ analogix_dp_enable_sw_function(dp);
- exynos_dp_config_interrupt(dp);
- exynos_dp_init_analog_func(dp);
+ analogix_dp_config_interrupt(dp);
+ analogix_dp_init_analog_func(dp);
- exynos_dp_init_hpd(dp);
- exynos_dp_init_aux(dp);
+ analogix_dp_init_hpd(dp);
+ analogix_dp_init_aux(dp);
}
-static int exynos_dp_detect_hpd(struct exynos_dp_device *dp)
+static int analogix_dp_detect_hpd(struct analogix_dp_device *dp)
{
int timeout_loop = 0;
- while (exynos_dp_get_plug_in_status(dp) != 0) {
+ while (analogix_dp_get_plug_in_status(dp) != 0) {
timeout_loop++;
if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
dev_err(dp->dev, "failed to get hpd plug status\n");
@@ -88,7 +80,7 @@ static int exynos_dp_detect_hpd(struct exynos_dp_device *dp)
return 0;
}
-static unsigned char exynos_dp_calc_edid_check_sum(unsigned char *edid_data)
+static unsigned char analogix_dp_calc_edid_check_sum(unsigned char *edid_data)
{
int i;
unsigned char sum = 0;
@@ -99,7 +91,7 @@ static unsigned char exynos_dp_calc_edid_check_sum(unsigned char *edid_data)
return sum;
}
-static int exynos_dp_read_edid(struct exynos_dp_device *dp)
+static int analogix_dp_read_edid(struct analogix_dp_device *dp)
{
unsigned char edid[EDID_BLOCK_LENGTH * 2];
unsigned int extend_block = 0;
@@ -114,9 +106,9 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
*/
/* Read Extension Flag, Number of 128-byte EDID extension blocks */
- retval = exynos_dp_read_byte_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
- EDID_EXTENSION_FLAG,
- &extend_block);
+ retval = analogix_dp_read_byte_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
+ EDID_EXTENSION_FLAG,
+ &extend_block);
if (retval)
return retval;
@@ -125,15 +117,15 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
/* Read EDID data */
retval =
- exynos_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
- EDID_HEADER_PATTERN,
- EDID_BLOCK_LENGTH,
- &edid[EDID_HEADER_PATTERN]);
+ analogix_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
+ EDID_HEADER_PATTERN,
+ EDID_BLOCK_LENGTH,
+ &edid[EDID_HEADER_PATTERN]);
if (retval != 0) {
dev_err(dp->dev, "EDID Read failed!\n");
return -EIO;
}
- sum = exynos_dp_calc_edid_check_sum(edid);
+ sum = analogix_dp_calc_edid_check_sum(edid);
if (sum != 0) {
dev_err(dp->dev, "EDID bad checksum!\n");
return -EIO;
@@ -141,27 +133,27 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
/* Read additional EDID data */
retval =
- exynos_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
- EDID_BLOCK_LENGTH,
- EDID_BLOCK_LENGTH,
- &edid[EDID_BLOCK_LENGTH]);
+ analogix_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
+ EDID_BLOCK_LENGTH,
+ EDID_BLOCK_LENGTH,
+ &edid[EDID_BLOCK_LENGTH]);
if (retval != 0) {
dev_err(dp->dev, "EDID Read failed!\n");
return -EIO;
}
- sum = exynos_dp_calc_edid_check_sum(&edid[EDID_BLOCK_LENGTH]);
+ sum = analogix_dp_calc_edid_check_sum(&edid[EDID_BLOCK_LENGTH]);
if (sum != 0) {
dev_err(dp->dev, "EDID bad checksum!\n");
return -EIO;
}
- exynos_dp_read_byte_from_dpcd(dp, DP_TEST_REQUEST,
- &test_vector);
+ analogix_dp_read_byte_from_dpcd(dp, DP_TEST_REQUEST,
+ &test_vector);
if (test_vector & DP_TEST_LINK_EDID_READ) {
- exynos_dp_write_byte_to_dpcd(
+ analogix_dp_write_byte_to_dpcd(
dp, DP_TEST_EDID_CHECKSUM,
edid[EDID_BLOCK_LENGTH + EDID_CHECKSUM]);
- exynos_dp_write_byte_to_dpcd(
+ analogix_dp_write_byte_to_dpcd(
dp, DP_TEST_RESPONSE,
DP_TEST_EDID_CHECKSUM_WRITE);
}
@@ -169,26 +161,26 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
dev_info(dp->dev, "EDID data does not include any extensions.\n");
/* Read EDID data */
- retval = exynos_dp_read_bytes_from_i2c(
+ retval = analogix_dp_read_bytes_from_i2c(
dp, I2C_EDID_DEVICE_ADDR, EDID_HEADER_PATTERN,
EDID_BLOCK_LENGTH, &edid[EDID_HEADER_PATTERN]);
if (retval != 0) {
dev_err(dp->dev, "EDID Read failed!\n");
return -EIO;
}
- sum = exynos_dp_calc_edid_check_sum(edid);
+ sum = analogix_dp_calc_edid_check_sum(edid);
if (sum != 0) {
dev_err(dp->dev, "EDID bad checksum!\n");
return -EIO;
}
- exynos_dp_read_byte_from_dpcd(dp, DP_TEST_REQUEST,
- &test_vector);
+ analogix_dp_read_byte_from_dpcd(dp, DP_TEST_REQUEST,
+ &test_vector);
if (test_vector & DP_TEST_LINK_EDID_READ) {
- exynos_dp_write_byte_to_dpcd(
+ analogix_dp_write_byte_to_dpcd(
dp, DP_TEST_EDID_CHECKSUM,
edid[EDID_CHECKSUM]);
- exynos_dp_write_byte_to_dpcd(
+ analogix_dp_write_byte_to_dpcd(
dp, DP_TEST_RESPONSE,
DP_TEST_EDID_CHECKSUM_WRITE);
}
@@ -198,20 +190,20 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
return 0;
}
-static int exynos_dp_handle_edid(struct exynos_dp_device *dp)
+static int analogix_dp_handle_edid(struct analogix_dp_device *dp)
{
u8 buf[12];
int i;
int retval;
/* Read DPCD DP_DPCD_REV~RECEIVE_PORT1_CAP_1 */
- retval = exynos_dp_read_bytes_from_dpcd(dp, DP_DPCD_REV, 12, buf);
+ retval = analogix_dp_read_bytes_from_dpcd(dp, DP_DPCD_REV, 12, buf);
if (retval)
return retval;
/* Read EDID */
for (i = 0; i < 3; i++) {
- retval = exynos_dp_read_edid(dp);
+ retval = analogix_dp_read_edid(dp);
if (!retval)
break;
}
@@ -219,74 +211,74 @@ static int exynos_dp_handle_edid(struct exynos_dp_device *dp)
return retval;
}
-static void exynos_dp_enable_rx_to_enhanced_mode(struct exynos_dp_device *dp,
- bool enable)
+static void analogix_dp_enable_rx_to_enhanced_mode(struct analogixdp_device *dp,
+ bool enable)
{
u8 data;
- exynos_dp_read_byte_from_dpcd(dp, DP_LANE_COUNT_SET, &data);
+ analogix_dp_read_byte_from_dpcd(dp, DP_LANE_COUNT_SET, &data);
if (enable)
- exynos_dp_write_byte_to_dpcd(
+ analogix_dp_write_byte_to_dpcd(
dp, DP_LANE_COUNT_SET,
DP_LANE_COUNT_ENHANCED_FRAME_EN |
DPCD_LANE_COUNT_SET(data));
else
- exynos_dp_write_byte_to_dpcd(
+ analogix_dp_write_byte_to_dpcd(
dp, DP_LANE_COUNT_SET,
DPCD_LANE_COUNT_SET(data));
}
-static int exynos_dp_is_enhanced_mode_available(struct exynos_dp_device *dp)
+static int analogix_dp_is_enhanced_mode_available(struct analogix_dp_device *dp)
{
u8 data;
int retval;
- exynos_dp_read_byte_from_dpcd(dp, DP_MAX_LANE_COUNT, &data);
+ analogix_dp_read_byte_from_dpcd(dp, DP_MAX_LANE_COUNT, &data);
retval = DPCD_ENHANCED_FRAME_CAP(data);
return retval;
}
-static void exynos_dp_set_enhanced_mode(struct exynos_dp_device *dp)
+static void analogix_dp_set_enhanced_mode(struct analogix_dp_device *dp)
{
u8 data;
- data = exynos_dp_is_enhanced_mode_available(dp);
- exynos_dp_enable_rx_to_enhanced_mode(dp, data);
- exynos_dp_enable_enhanced_mode(dp, data);
+ data = analogix_dp_is_enhanced_mode_available(dp);
+ analogix_dp_enable_rx_to_enhanced_mode(dp, data);
+ analogix_dp_enable_enhanced_mode(dp, data);
}
-static void exynos_dp_training_pattern_dis(struct exynos_dp_device *dp)
+static void analogix_dp_training_pattern_dis(struct analogix_dp_device *dp)
{
- exynos_dp_set_training_pattern(dp, DP_NONE);
+ analogix_dp_set_training_pattern(dp, DP_NONE);
- exynos_dp_write_byte_to_dpcd(dp, DP_TRAINING_PATTERN_SET,
- DP_TRAINING_PATTERN_DISABLE);
+ analogix_dp_write_byte_to_dpcd(dp, DP_TRAINING_PATTERN_SET,
+ DP_TRAINING_PATTERN_DISABLE);
}
-static void exynos_dp_set_lane_lane_pre_emphasis(struct exynos_dp_device *dp,
- int pre_emphasis, int lane)
+static void analogix_dp_set_lane_lane_pre_emphasis(struct analogixdp_device *dp,
+ int pre_emphasis, int lane)
{
switch (lane) {
case 0:
- exynos_dp_set_lane0_pre_emphasis(dp, pre_emphasis);
+ analogix_dp_set_lane0_pre_emphasis(dp, pre_emphasis);
break;
case 1:
- exynos_dp_set_lane1_pre_emphasis(dp, pre_emphasis);
+ analogix_dp_set_lane1_pre_emphasis(dp, pre_emphasis);
break;
case 2:
- exynos_dp_set_lane2_pre_emphasis(dp, pre_emphasis);
+ analogix_dp_set_lane2_pre_emphasis(dp, pre_emphasis);
break;
case 3:
- exynos_dp_set_lane3_pre_emphasis(dp, pre_emphasis);
+ analogix_dp_set_lane3_pre_emphasis(dp, pre_emphasis);
break;
}
}
-static int exynos_dp_link_start(struct exynos_dp_device *dp)
+static int analogix_dp_link_start(struct analogix_dp_device *dp)
{
u8 buf[4];
int lane, lane_count, pll_tries, retval;
@@ -300,24 +292,24 @@ static int exynos_dp_link_start(struct exynos_dp_device *dp)
dp->link_train.cr_loop[lane] = 0;
/* Set link rate and count as you want to establish*/
- exynos_dp_set_link_bandwidth(dp, dp->link_train.link_rate);
- exynos_dp_set_lane_count(dp, dp->link_train.lane_count);
+ analogix_dp_set_link_bandwidth(dp, dp->link_train.link_rate);
+ analogix_dp_set_lane_count(dp, dp->link_train.lane_count);
/* Setup RX configuration */
buf[0] = dp->link_train.link_rate;
buf[1] = dp->link_train.lane_count;
- retval = exynos_dp_write_bytes_to_dpcd(dp, DP_LINK_BW_SET, 2, buf);
+ retval = analogix_dp_write_bytes_to_dpcd(dp, DP_LINK_BW_SET, 2, buf);
if (retval)
return retval;
/* Set TX pre-emphasis to minimum */
for (lane = 0; lane < lane_count; lane++)
- exynos_dp_set_lane_lane_pre_emphasis(dp, PRE_EMPHASIS_LEVEL_0,
- lane);
+ analogix_dp_set_lane_lane_pre_emphasis(
+ dp, PRE_EMPHASIS_LEVEL_0, lane);
/* Wait for PLL lock */
pll_tries = 0;
- while (exynos_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
+ while (analogix_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
if (pll_tries == DP_TIMEOUT_LOOP_COUNT) {
dev_err(dp->dev, "Wait for PLL lock timed out\n");
return -ETIMEDOUT;
@@ -328,12 +320,12 @@ static int exynos_dp_link_start(struct exynos_dp_device *dp)
}
/* Set training pattern 1 */
- exynos_dp_set_training_pattern(dp, TRAINING_PTN1);
+ analogix_dp_set_training_pattern(dp, TRAINING_PTN1);
/* Set RX training pattern */
- retval = exynos_dp_write_byte_to_dpcd(dp, DP_TRAINING_PATTERN_SET,
- DP_LINK_SCRAMBLING_DISABLE |
- DP_TRAINING_PATTERN_1);
+ retval = analogix_dp_write_byte_to_dpcd(dp, DP_TRAINING_PATTERN_SET,
+ DP_LINK_SCRAMBLING_DISABLE |
+ DP_TRAINING_PATTERN_1);
if (retval)
return retval;
@@ -341,13 +333,13 @@ static int exynos_dp_link_start(struct exynos_dp_device *dp)
buf[lane] = DP_TRAIN_PRE_EMPH_LEVEL_0 |
DP_TRAIN_VOLTAGE_SWING_LEVEL_0;
- retval = exynos_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
- lane_count, buf);
+ retval = analogix_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
+ lane_count, buf);
return retval;
}
-static unsigned char exynos_dp_get_lane_status(u8 link_status[2], int lane)
+static unsigned char analogix_dp_get_lane_status(u8 link_status[2], int lane)
{
int shift = (lane & 1) * 4;
u8 link_value = link_status[lane >> 1];
@@ -355,21 +347,21 @@ static unsigned char exynos_dp_get_lane_status(u8 link_status[2], int lane)
return (link_value >> shift) & 0xf;
}
-static int exynos_dp_clock_recovery_ok(u8 link_status[2], int lane_count)
+static int analogix_dp_clock_recovery_ok(u8 link_status[2], int lane_count)
{
int lane;
u8 lane_status;
for (lane = 0; lane < lane_count; lane++) {
- lane_status = exynos_dp_get_lane_status(link_status, lane);
+ lane_status = analogix_dp_get_lane_status(link_status, lane);
if ((lane_status & DP_LANE_CR_DONE) == 0)
return -EINVAL;
}
return 0;
}
-static int exynos_dp_channel_eq_ok(u8 link_status[2], u8 link_align,
- int lane_count)
+static int analogix_dp_channel_eq_ok(u8 link_status[2], u8 link_align,
+ int lane_count)
{
int lane;
u8 lane_status;
@@ -378,7 +370,7 @@ static int exynos_dp_channel_eq_ok(u8 link_status[2], u8 link_align,
return -EINVAL;
for (lane = 0; lane < lane_count; lane++) {
- lane_status = exynos_dp_get_lane_status(link_status, lane);
+ lane_status = analogix_dp_get_lane_status(link_status, lane);
lane_status &= DP_CHANNEL_EQ_BITS;
if (lane_status != DP_CHANNEL_EQ_BITS)
return -EINVAL;
@@ -387,8 +379,8 @@ static int exynos_dp_channel_eq_ok(u8 link_status[2], u8 link_align,
return 0;
}
-static unsigned char exynos_dp_get_adjust_request_voltage(u8 adjust_request[2],
- int lane)
+static unsigned char
+analogix_dp_get_adjust_request_voltage(u8 adjust_request[2], int lane)
{
int shift = (lane & 1) * 4;
u8 link_value = adjust_request[lane >> 1];
@@ -396,7 +388,7 @@ static unsigned char exynos_dp_get_adjust_request_voltage(u8 adjust_request[2],
return (link_value >> shift) & 0x3;
}
-static unsigned char exynos_dp_get_adjust_request_pre_emphasis(
+static unsigned char analogix_dp_get_adjust_request_pre_emphasis(
u8 adjust_request[2],
int lane)
{
@@ -406,45 +398,45 @@ static unsigned char exynos_dp_get_adjust_request_pre_emphasis(
return ((link_value >> shift) & 0xc) >> 2;
}
-static void exynos_dp_set_lane_link_training(struct exynos_dp_device *dp,
- u8 training_lane_set, int lane)
+static void analogix_dp_set_lane_link_training(struct analogixdp_device *dp,
+ u8 training_lane_set, int lane)
{
switch (lane) {
case 0:
- exynos_dp_set_lane0_link_training(dp, training_lane_set);
+ analogix_dp_set_lane0_link_training(dp, training_lane_set);
break;
case 1:
- exynos_dp_set_lane1_link_training(dp, training_lane_set);
+ analogix_dp_set_lane1_link_training(dp, training_lane_set);
break;
case 2:
- exynos_dp_set_lane2_link_training(dp, training_lane_set);
+ analogix_dp_set_lane2_link_training(dp, training_lane_set);
break;
case 3:
- exynos_dp_set_lane3_link_training(dp, training_lane_set);
+ analogix_dp_set_lane3_link_training(dp, training_lane_set);
break;
}
}
-static unsigned int exynos_dp_get_lane_link_training(
- struct exynos_dp_device *dp,
+static unsigned int analogix_dp_get_lane_link_training(
+ struct analogix_dp_device *dp,
int lane)
{
u32 reg;
switch (lane) {
case 0:
- reg = exynos_dp_get_lane0_link_training(dp);
+ reg = analogix_dp_get_lane0_link_training(dp);
break;
case 1:
- reg = exynos_dp_get_lane1_link_training(dp);
+ reg = analogix_dp_get_lane1_link_training(dp);
break;
case 2:
- reg = exynos_dp_get_lane2_link_training(dp);
+ reg = analogix_dp_get_lane2_link_training(dp);
break;
case 3:
- reg = exynos_dp_get_lane3_link_training(dp);
+ reg = analogix_dp_get_lane3_link_training(dp);
break;
default:
WARN_ON(1);
@@ -454,25 +446,25 @@ static unsigned int exynos_dp_get_lane_link_training(
return reg;
}
-static void exynos_dp_reduce_link_rate(struct exynos_dp_device *dp)
+static void analogix_dp_reduce_link_rate(struct analogix_dp_device *dp)
{
- exynos_dp_training_pattern_dis(dp);
- exynos_dp_set_enhanced_mode(dp);
+ analogix_dp_training_pattern_dis(dp);
+ analogix_dp_set_enhanced_mode(dp);
dp->link_train.lt_state = FAILED;
}
-static void exynos_dp_get_adjust_training_lane(struct exynos_dp_device *dp,
- u8 adjust_request[2])
+static void analogix_dp_get_adjust_training_lane(struct analogixdp_device *dp,
+ u8 adjust_request[2])
{
int lane, lane_count;
u8 voltage_swing, pre_emphasis, training_lane;
lane_count = dp->link_train.lane_count;
for (lane = 0; lane < lane_count; lane++) {
- voltage_swing = exynos_dp_get_adjust_request_voltage(
+ voltage_swing = analogix_dp_get_adjust_request_voltage(
adjust_request, lane);
- pre_emphasis = exynos_dp_get_adjust_request_pre_emphasis(
+ pre_emphasis = analogix_dp_get_adjust_request_pre_emphasis(
adjust_request, lane);
training_lane = DPCD_VOLTAGE_SWING_SET(voltage_swing) |
DPCD_PRE_EMPHASIS_SET(pre_emphasis);
@@ -486,7 +478,7 @@ static void exynos_dp_get_adjust_training_lane(struct exynos_dp_device *dp,
}
}
-static int exynos_dp_process_clock_recovery(struct exynos_dp_device *dp)
+static int analogix_dp_process_clock_recovery(struct analogix_dp_device *dp)
{
int lane, lane_count, retval;
u8 voltage_swing, pre_emphasis, training_lane;
@@ -496,24 +488,24 @@ static int exynos_dp_process_clock_recovery(struct exynos_dp_device *dp)
lane_count = dp->link_train.lane_count;
- retval = exynos_dp_read_bytes_from_dpcd(dp, DP_LANE0_1_STATUS,
- 2, link_status);
+ retval = analogix_dp_read_bytes_from_dpcd(
+ dp, DP_LANE0_1_STATUS, 2, link_status);
if (retval)
return retval;
- retval = exynos_dp_read_bytes_from_dpcd(dp, DP_ADJUST_REQUEST_LANE0_1,
- 2, adjust_request);
+ retval = analogix_dp_read_bytes_from_dpcd(
+ dp, DP_ADJUST_REQUEST_LANE0_1, 2, adjust_request);
if (retval)
return retval;
- if (exynos_dp_clock_recovery_ok(link_status, lane_count) == 0) {
+ if (analogix_dp_clock_recovery_ok(link_status, lane_count) == 0) {
/* set training pattern 2 for EQ */
- exynos_dp_set_training_pattern(dp, TRAINING_PTN2);
+ analogix_dp_set_training_pattern(dp, TRAINING_PTN2);
- retval = exynos_dp_write_byte_to_dpcd(
- dp, DP_TRAINING_PATTERN_SET,
- DP_LINK_SCRAMBLING_DISABLE |
- DP_TRAINING_PATTERN_2);
+ retval = analogix_dp_write_byte_to_dpcd(
+ dp, DP_TRAINING_PATTERN_SET,
+ DP_LINK_SCRAMBLING_DISABLE |
+ DP_TRAINING_PATTERN_2);
if (retval)
return retval;
@@ -521,12 +513,12 @@ static int exynos_dp_process_clock_recovery(struct exynos_dp_device *dp)
dp->link_train.lt_state = EQUALIZER_TRAINING;
} else {
for (lane = 0; lane < lane_count; lane++) {
- training_lane = exynos_dp_get_lane_link_training(
+ training_lane = analogix_dp_get_lane_link_training(
dp, lane);
- voltage_swing = exynos_dp_get_adjust_request_voltage(
+ voltage_swing = analogix_dp_get_adjust_request_voltage(
adjust_request, lane);
pre_emphasis =
- exynos_dp_get_adjust_request_pre_emphasis(
+ analogix_dp_get_adjust_request_pre_emphasis(
adjust_request, lane);
if (DPCD_VOLTAGE_SWING_GET(training_lane) ==
@@ -541,19 +533,19 @@ static int exynos_dp_process_clock_recovery(struct exynos_dp_device *dp)
dev_err(dp->dev, "CR Max reached (%d,%d,%d)\n",
dp->link_train.cr_loop[lane],
voltage_swing, pre_emphasis);
- exynos_dp_reduce_link_rate(dp);
+ analogix_dp_reduce_link_rate(dp);
return -EIO;
}
}
}
- exynos_dp_get_adjust_training_lane(dp, adjust_request);
+ analogix_dp_get_adjust_training_lane(dp, adjust_request);
for (lane = 0; lane < lane_count; lane++)
- exynos_dp_set_lane_link_training(
+ analogix_dp_set_lane_link_training(
dp, dp->link_train.training_lane[lane], lane);
- retval = exynos_dp_write_bytes_to_dpcd(
+ retval = analogix_dp_write_bytes_to_dpcd(
dp, DP_TRAINING_LANE0_SET, lane_count,
dp->link_train.training_lane);
if (retval)
@@ -562,7 +554,7 @@ static int exynos_dp_process_clock_recovery(struct exynos_dp_device *dp)
return retval;
}
-static int exynos_dp_process_equalizer_training(struct exynos_dp_device *dp)
+static int analogix_dp_process_equalizer_training(struct analogix_dp_device *dp)
{
int lane, lane_count, retval;
u32 reg;
@@ -572,46 +564,46 @@ static int exynos_dp_process_equalizer_training(struct exynos_dp_device *dp)
lane_count = dp->link_train.lane_count;
- retval = exynos_dp_read_bytes_from_dpcd(dp, DP_LANE0_1_STATUS,
- 2, link_status);
+ retval = analogix_dp_read_bytes_from_dpcd(dp, DP_LANE0_1_STATUS,
+ 2, link_status);
if (retval)
return retval;
- if (exynos_dp_clock_recovery_ok(link_status, lane_count)) {
- exynos_dp_reduce_link_rate(dp);
+ if (analogix_dp_clock_recovery_ok(link_status, lane_count)) {
+ analogix_dp_reduce_link_rate(dp);
return -EIO;
}
- retval = exynos_dp_read_bytes_from_dpcd(dp, DP_ADJUST_REQUEST_LANE0_1,
- 2, adjust_request);
+ retval = analogix_dp_read_bytes_from_dpcd(dp, DP_ADJUST_REQUEST_LANE0_1,
+ 2, adjust_request);
if (retval)
return retval;
- retval = exynos_dp_read_byte_from_dpcd(
+ retval = analogix_dp_read_byte_from_dpcd(
dp, DP_LANE_ALIGN_STATUS_UPDATED, &link_align);
if (retval)
return retval;
- exynos_dp_get_adjust_training_lane(dp, adjust_request);
+ analogix_dp_get_adjust_training_lane(dp, adjust_request);
- if (!exynos_dp_channel_eq_ok(link_status, link_align, lane_count)) {
+ if (!analogix_dp_channel_eq_ok(link_status, link_align, lane_count)) {
/* traing pattern Set to Normal */
- exynos_dp_training_pattern_dis(dp);
+ analogix_dp_training_pattern_dis(dp);
dev_info(dp->dev, "Link Training success!\n");
- exynos_dp_get_link_bandwidth(dp, ®);
+ analogix_dp_get_link_bandwidth(dp, ®);
dp->link_train.link_rate = reg;
dev_dbg(dp->dev, "final bandwidth = %.2x\n",
dp->link_train.link_rate);
- exynos_dp_get_lane_count(dp, ®);
+ analogix_dp_get_lane_count(dp, ®);
dp->link_train.lane_count = reg;
dev_dbg(dp->dev, "final lane count = %.2x\n",
dp->link_train.lane_count);
/* set enhanced mode if available */
- exynos_dp_set_enhanced_mode(dp);
+ analogix_dp_set_enhanced_mode(dp);
dp->link_train.lt_state = FINISHED;
return 0;
@@ -622,23 +614,23 @@ static int exynos_dp_process_equalizer_training(struct exynos_dp_device *dp)
if (dp->link_train.eq_loop > MAX_EQ_LOOP) {
dev_err(dp->dev, "EQ Max loop\n");
- exynos_dp_reduce_link_rate(dp);
+ analogix_dp_reduce_link_rate(dp);
return -EIO;
}
for (lane = 0; lane < lane_count; lane++)
- exynos_dp_set_lane_link_training(
+ analogix_dp_set_lane_link_training(
dp, dp->link_train.training_lane[lane], lane);
- retval = exynos_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
- lane_count,
- dp->link_train.training_lane);
+ retval = analogix_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
+ lane_count,
+ dp->link_train.training_lane);
return retval;
}
-static void exynos_dp_get_max_rx_bandwidth(struct exynos_dp_device *dp,
- u8 *bandwidth)
+static void analogix_dp_get_max_rx_bandwidth(struct analogixdp_device *dp,
+ u8 *bandwidth)
{
u8 data;
@@ -646,12 +638,12 @@ static void exynos_dp_get_max_rx_bandwidth(struct exynos_dp_device *dp,
* For DP rev.1.1, Maximum link rate of Main Link lanes
* 0x06 = 1.62 Gbps, 0x0a = 2.7 Gbps
*/
- exynos_dp_read_byte_from_dpcd(dp, DP_MAX_LINK_RATE, &data);
+ analogix_dp_read_byte_from_dpcd(dp, DP_MAX_LINK_RATE, &data);
*bandwidth = data;
}
-static void exynos_dp_get_max_rx_lane_count(struct exynos_dp_device *dp,
- u8 *lane_count)
+static void analogix_dp_get_max_rx_lane_count(struct analogixdp_device *dp,
+ u8 *lane_count)
{
u8 data;
@@ -659,23 +651,23 @@ static void exynos_dp_get_max_rx_lane_count(struct exynos_dp_device *dp,
* For DP rev.1.1, Maximum number of Main Link lanes
* 0x01 = 1 lane, 0x02 = 2 lanes, 0x04 = 4 lanes
*/
- exynos_dp_read_byte_from_dpcd(dp, DP_MAX_LANE_COUNT, &data);
+ analogix_dp_read_byte_from_dpcd(dp, DP_MAX_LANE_COUNT, &data);
*lane_count = DPCD_MAX_LANE_COUNT(data);
}
-static void exynos_dp_init_training(struct exynos_dp_device *dp,
- enum link_lane_count_type max_lane,
- enum link_rate_type max_rate)
+static void analogix_dp_init_training(struct analogixdp_device *dp,
+ enum link_lane_count_type max_lane,
+ enum link_rate_type max_rate)
{
/*
* MACRO_RST must be applied after the PLL_LOCK to avoid
* the DP inter pair skew issue for at least 10 us
*/
- exynos_dp_reset_macro(dp);
+ analogix_dp_reset_macro(dp);
/* Initialize by reading RX's DPCD */
- exynos_dp_get_max_rx_bandwidth(dp, &dp->link_train.link_rate);
- exynos_dp_get_max_rx_lane_count(dp, &dp->link_train.lane_count);
+ analogix_dp_get_max_rx_bandwidth(dp, &dp->link_train.link_rate);
+ analogix_dp_get_max_rx_lane_count(dp, &dp->link_train.lane_count);
if ((dp->link_train.link_rate != LINK_RATE_1_62GBPS) &&
(dp->link_train.link_rate != LINK_RATE_2_70GBPS)) {
@@ -697,10 +689,10 @@ static void exynos_dp_init_training(struct exynos_dp_device *dp,
dp->link_train.link_rate = max_rate;
/* All DP analog module power up */
- exynos_dp_set_analog_power_down(dp, POWER_ALL, 0);
+ analogix_dp_set_analog_power_down(dp, POWER_ALL, 0);
}
-static int exynos_dp_sw_link_training(struct exynos_dp_device *dp)
+static int analogix_dp_sw_link_training(struct analogix_dp_device *dp)
{
int retval = 0, training_finished = 0;
@@ -710,17 +702,17 @@ static int exynos_dp_sw_link_training(struct exynos_dp_device *dp)
while (!retval && !training_finished) {
switch (dp->link_train.lt_state) {
case START:
- retval = exynos_dp_link_start(dp);
+ retval = analogix_dp_link_start(dp);
if (retval)
dev_err(dp->dev, "LT link start failed!\n");
break;
case CLOCK_RECOVERY:
- retval = exynos_dp_process_clock_recovery(dp);
+ retval = analogix_dp_process_clock_recovery(dp);
if (retval)
dev_err(dp->dev, "LT CR failed!\n");
break;
case EQUALIZER_TRAINING:
- retval = exynos_dp_process_equalizer_training(dp);
+ retval = analogix_dp_process_equalizer_training(dp);
if (retval)
dev_err(dp->dev, "LT EQ failed!\n");
break;
@@ -737,15 +729,15 @@ static int exynos_dp_sw_link_training(struct exynos_dp_device *dp)
return retval;
}
-static int exynos_dp_set_link_train(struct exynos_dp_device *dp,
- u32 count, u32 bwtype)
+static int analogix_dp_set_link_train(struct analogixdp_device *dp,
+ u32 count, u32 bwtype)
{
int i;
int retval;
for (i = 0; i < DP_TIMEOUT_LOOP_COUNT; i++) {
- exynos_dp_init_training(dp, count, bwtype);
- retval = exynos_dp_sw_link_training(dp);
+ analogix_dp_init_training(dp, count, bwtype);
+ retval = analogix_dp_sw_link_training(dp);
if (retval == 0)
break;
@@ -755,24 +747,24 @@ static int exynos_dp_set_link_train(struct exynos_dp_device *dp,
return retval;
}
-static int exynos_dp_config_video(struct exynos_dp_device *dp)
+static int analogix_dp_config_video(struct analogix_dp_device *dp)
{
int retval = 0;
int timeout_loop = 0;
int done_count = 0;
- exynos_dp_config_video_slave_mode(dp);
+ analogix_dp_config_video_slave_mode(dp);
- exynos_dp_set_video_color_format(dp);
+ analogix_dp_set_video_color_format(dp);
- if (exynos_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
+ if (analogix_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
dev_err(dp->dev, "PLL is not locked yet.\n");
return -EINVAL;
}
for (;;) {
timeout_loop++;
- if (exynos_dp_is_slave_video_stream_clock_on(dp) == 0)
+ if (analogix_dp_is_slave_video_stream_clock_on(dp) == 0)
break;
if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
dev_err(dp->dev, "Timeout of video streamclk ok\n");
@@ -783,25 +775,25 @@ static int exynos_dp_config_video(struct exynos_dp_device *dp)
}
/* Set to use the register calculated M/N video */
- exynos_dp_set_video_cr_mn(dp, CALCULATED_M, 0, 0);
+ analogix_dp_set_video_cr_mn(dp, CALCULATED_M, 0, 0);
/* For video bist, Video timing must be generated by register */
- exynos_dp_set_video_timing_mode(dp, VIDEO_TIMING_FROM_CAPTURE);
+ analogix_dp_set_video_timing_mode(dp, VIDEO_TIMING_FROM_CAPTURE);
/* Disable video mute */
- exynos_dp_enable_video_mute(dp, 0);
+ analogix_dp_enable_video_mute(dp, 0);
/* Configure video slave mode */
- exynos_dp_enable_video_master(dp, 0);
+ analogix_dp_enable_video_master(dp, 0);
/* Enable video */
- exynos_dp_start_video(dp);
+ analogix_dp_start_video(dp);
timeout_loop = 0;
for (;;) {
timeout_loop++;
- if (exynos_dp_is_video_stream_on(dp) == 0) {
+ if (analogix_dp_is_video_stream_on(dp) == 0) {
done_count++;
if (done_count > 10)
break;
@@ -822,45 +814,46 @@ static int exynos_dp_config_video(struct exynos_dp_device *dp)
return retval;
}
-static void exynos_dp_enable_scramble(struct exynos_dp_device *dp, bool enable)
+static void analogix_dp_enable_scramble(struct analogix_dp_device *dp,
+ bool enable)
{
u8 data;
if (enable) {
- exynos_dp_enable_scrambling(dp);
+ analogix_dp_enable_scrambling(dp);
- exynos_dp_read_byte_from_dpcd(dp, DP_TRAINING_PATTERN_SET,
- &data);
- exynos_dp_write_byte_to_dpcd(
- dp, DP_TRAINING_PATTERN_SET,
- (u8)(data & ~DP_LINK_SCRAMBLING_DISABLE));
+ analogix_dp_read_byte_from_dpcd(
+ dp, DP_TRAINING_PATTERN_SET, &data);
+ analogix_dp_write_byte_to_dpcd(
+ dp, DP_TRAINING_PATTERN_SET,
+ (u8)(data & ~DP_LINK_SCRAMBLING_DISABLE));
} else {
- exynos_dp_disable_scrambling(dp);
+ analogix_dp_disable_scrambling(dp);
- exynos_dp_read_byte_from_dpcd(dp, DP_TRAINING_PATTERN_SET,
- &data);
- exynos_dp_write_byte_to_dpcd(
+ analogix_dp_read_byte_from_dpcd(dp, DP_TRAINING_PATTERN_SET,
+ &data);
+ analogix_dp_write_byte_to_dpcd(
dp, DP_TRAINING_PATTERN_SET,
(u8)(data | DP_LINK_SCRAMBLING_DISABLE));
}
}
-static irqreturn_t exynos_dp_irq_handler(int irq, void *arg)
+static irqreturn_t analogix_dp_irq_handler(int irq, void *arg)
{
- struct exynos_dp_device *dp = arg;
+ struct analogix_dp_device *dp = arg;
enum dp_irq_type irq_type;
- irq_type = exynos_dp_get_irq_type(dp);
+ irq_type = analogix_dp_get_irq_type(dp);
switch (irq_type) {
case DP_IRQ_TYPE_HP_CABLE_IN:
dev_dbg(dp->dev, "Received irq - cable in\n");
schedule_work(&dp->hotplug_work);
- exynos_dp_clear_hotplug_interrupts(dp);
+ analogix_dp_clear_hotplug_interrupts(dp);
break;
case DP_IRQ_TYPE_HP_CABLE_OUT:
dev_dbg(dp->dev, "Received irq - cable out\n");
- exynos_dp_clear_hotplug_interrupts(dp);
+ analogix_dp_clear_hotplug_interrupts(dp);
break;
case DP_IRQ_TYPE_HP_CHANGE:
/*
@@ -869,7 +862,7 @@ static irqreturn_t exynos_dp_irq_handler(int irq, void *arg)
* only handle cable changes.
*/
dev_dbg(dp->dev, "Received irq - hotplug change; ignoring.\n");
- exynos_dp_clear_hotplug_interrupts(dp);
+ analogix_dp_clear_hotplug_interrupts(dp);
break;
default:
dev_err(dp->dev, "Received irq - unknown type!\n");
@@ -878,94 +871,93 @@ static irqreturn_t exynos_dp_irq_handler(int irq, void *arg)
return IRQ_HANDLED;
}
-static void exynos_dp_hotplug(struct work_struct *work)
+static void analogix_dp_hotplug(struct work_struct *work)
{
- struct exynos_dp_device *dp;
+ struct analogix_dp_device *dp;
- dp = container_of(work, struct exynos_dp_device, hotplug_work);
+ dp = container_of(work, struct analogix_dp_device, hotplug_work);
if (dp->drm_dev)
drm_helper_hpd_irq_event(dp->drm_dev);
}
-static void exynos_dp_commit(struct exynos_drm_display *display)
+static void analogix_dp_commit(struct analogix_dp_device *dp)
{
- struct exynos_dp_device *dp = display_to_dp(display);
int ret;
/* Keep the panel disabled while we configure video */
- if (dp->panel) {
- if (drm_panel_disable(dp->panel))
+ if (dp->plat_data && dp->plat_data->panel) {
+ if (drm_panel_disable(dp->plat_data->panel))
DRM_ERROR("failed to disable the panel\n");
}
- ret = exynos_dp_detect_hpd(dp);
+ ret = analogix_dp_detect_hpd(dp);
if (ret) {
/* Cable has been disconnected, we're done */
return;
}
- ret = exynos_dp_handle_edid(dp);
+ ret = analogix_dp_handle_edid(dp);
if (ret) {
dev_err(dp->dev, "unable to handle edid\n");
return;
}
- ret = exynos_dp_set_link_train(dp, dp->video_info->lane_count,
- dp->video_info->link_rate);
+ ret = analogix_dp_set_link_train(dp, dp->video_info->lane_count,
+ dp->video_info->link_rate);
if (ret) {
dev_err(dp->dev, "unable to do link train\n");
return;
}
- exynos_dp_enable_scramble(dp, 1);
- exynos_dp_enable_rx_to_enhanced_mode(dp, 1);
- exynos_dp_enable_enhanced_mode(dp, 1);
+ analogix_dp_enable_scramble(dp, 1);
+ analogix_dp_enable_rx_to_enhanced_mode(dp, 1);
+ analogix_dp_enable_enhanced_mode(dp, 1);
- exynos_dp_set_lane_count(dp, dp->video_info->lane_count);
- exynos_dp_set_link_bandwidth(dp, dp->video_info->link_rate);
+ analogix_dp_set_lane_count(dp, dp->video_info->lane_count);
+ analogix_dp_set_link_bandwidth(dp, dp->video_info->link_rate);
- exynos_dp_init_video(dp);
- ret = exynos_dp_config_video(dp);
+ analogix_dp_init_video(dp);
+ ret = analogix_dp_config_video(dp);
if (ret)
dev_err(dp->dev, "unable to config video\n");
/* Safe to enable the panel now */
- if (dp->panel) {
- if (drm_panel_enable(dp->panel))
+ if (dp->plat_data && dp->plat_data->panel) {
+ if (drm_panel_enable(dp->plat_data->panel))
DRM_ERROR("failed to enable the panel\n");
}
}
-static enum drm_connector_status exynos_dp_detect(
+static enum drm_connector_status analogix_dp_detect(
struct drm_connector *connector, bool force)
{
return connector_status_connected;
}
-static void exynos_dp_connector_destroy(struct drm_connector *connector)
+static void analogix_dp_connector_destroy(struct drm_connector *connector)
{
drm_connector_unregister(connector);
drm_connector_cleanup(connector);
}
-static struct drm_connector_funcs exynos_dp_connector_funcs = {
+static struct drm_connector_funcs analogix_dp_connector_funcs = {
.dpms = drm_atomic_helper_connector_dpms,
.fill_modes = drm_helper_probe_single_connector_modes,
- .detect = exynos_dp_detect,
- .destroy = exynos_dp_connector_destroy,
+ .detect = analogix_dp_detect,
+ .destroy = analogix_dp_connector_destroy,
.reset = drm_atomic_helper_connector_reset,
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
};
-static int exynos_dp_get_modes(struct drm_connector *connector)
+static int analogix_dp_get_modes(struct drm_connector *connector)
{
- struct exynos_dp_device *dp = ctx_from_connector(connector);
+ struct analogix_dp_device *dp = connector_to_dp(connector);
struct drm_display_mode *mode;
- if (dp->panel)
- return drm_panel_get_modes(dp->panel);
+ if (dp->plat_data && dp->plat_data->panel)
+ return drm_panel_get_modes(dp->plat_data->panel);
mode = drm_mode_create(connector->dev);
if (!mode) {
@@ -986,64 +978,60 @@ static int exynos_dp_get_modes(struct drm_connector *connector)
return 1;
}
-static struct drm_encoder *exynos_dp_best_encoder(
+static struct drm_encoder *analogix_dp_best_encoder(
struct drm_connector *connector)
{
- struct exynos_dp_device *dp = ctx_from_connector(connector);
+ struct analogix_dp_device *dp = connector_to_dp(connector);
return dp->encoder;
}
-static struct drm_connector_helper_funcs exynos_dp_connector_helper_funcs = {
- .get_modes = exynos_dp_get_modes,
- .best_encoder = exynos_dp_best_encoder,
+static struct drm_connector_helper_funcs analogix_dp_connector_helper_funcs = {
+ .get_modes = analogix_dp_get_modes,
+ .best_encoder = analogix_dp_best_encoder,
};
-static void exynos_dp_phy_init(struct exynos_dp_device *dp)
+static void analogix_dp_phy_init(struct analogix_dp_device *dp)
{
if (dp->phy)
phy_power_on(dp->phy);
}
-static void exynos_dp_phy_exit(struct exynos_dp_device *dp)
+static void analogix_dp_phy_exit(struct analogix_dp_device *dp)
{
if (dp->phy)
phy_power_off(dp->phy);
}
-static void exynos_dp_poweron(struct exynos_dp_device *dp)
+static void analogix_dp_poweron(struct analogix_dp_device *dp)
{
- struct exynos_drm_crtc *crtc = dp_to_crtc(dp);
-
if (dp->dpms_mode == DRM_MODE_DPMS_ON)
return;
- if (dp->panel) {
- if (drm_panel_prepare(dp->panel)) {
+ if (dp->plat_data && dp->plat_data->panel) {
+ if (drm_panel_prepare(dp->plat_data->panel)) {
DRM_ERROR("failed to setup the panel\n");
return;
}
}
- if (crtc->ops->clock_enable)
- crtc->ops->clock_enable(dp_to_crtc(dp), true);
+ if (dp->plat_data && dp->plat_data->power_on)
+ dp->plat_data->power_on(dp->plat_data);
clk_prepare_enable(dp->clock);
- exynos_dp_phy_init(dp);
- exynos_dp_init_dp(dp);
+ analogix_dp_phy_init(dp);
+ analogix_dp_init_dp(dp);
enable_irq(dp->irq);
- exynos_dp_commit(&dp->display);
+ analogix_dp_commit(dp);
}
-static void exynos_dp_poweroff(struct exynos_dp_device *dp)
+static void analogix_dp_poweroff(struct analogix_dp_device *dp)
{
- struct exynos_drm_crtc *crtc = dp_to_crtc(dp);
-
if (dp->dpms_mode != DRM_MODE_DPMS_ON)
return;
- if (dp->panel) {
- if (drm_panel_disable(dp->panel)) {
+ if (dp->plat_data && dp->plat_data->panel) {
+ if (drm_panel_disable(dp->plat_data->panel)) {
DRM_ERROR("failed to disable the panel\n");
return;
}
@@ -1051,39 +1039,21 @@ static void exynos_dp_poweroff(struct exynos_dp_device *dp)
disable_irq(dp->irq);
flush_work(&dp->hotplug_work);
- exynos_dp_phy_exit(dp);
+ analogix_dp_phy_exit(dp);
clk_disable_unprepare(dp->clock);
- if (crtc->ops->clock_enable)
- crtc->ops->clock_enable(dp_to_crtc(dp), false);
+ if (dp->plat_data && dp->plat_data->power_off)
+ dp->plat_data->power_off(dp->plat_data);
- if (dp->panel) {
- if (drm_panel_unprepare(dp->panel))
+ if (dp->plat_data && dp->plat_data->panel) {
+ if (drm_panel_unprepare(dp->plat_data->panel))
DRM_ERROR("failed to turnoff the panel\n");
}
}
-/* returns the number of bridges attached */
-static int exynos_drm_attach_lcd_bridge(struct exynos_dp_device *dp,
- struct drm_encoder *encoder)
-{
- int ret;
-
- dp->bridge->next = dp->ptn_bridge;
- dp->bridge->encoder = encoder;
- ret = drm_bridge_attach(encoder->dev, dp->bridge);
- if (ret) {
- DRM_ERROR("Failed to attach ptn bridge to drm\n");
- return ret;
- }
-
- return 0;
-}
-
-static int exynos_dp_bridge_attach(struct drm_bridge *bridge)
+static int analogix_dp_bridge_attach(struct drm_bridge *bridge)
{
-
- struct exynos_dp_device *dp = bridge->driver_private;
+ struct analogix_dp_device *dp = bridge->driver_private;
struct drm_encoder *encoder = dp->encoder;
struct drm_connector *connector = &dp->connector;
int ret;
@@ -1095,66 +1065,77 @@ static int exynos_dp_bridge_attach(struct drm_bridge *bridge)
encoder->bridge = bridge;
- /* Pre-empt DP connector creation if there's a bridge */
- if (dp->ptn_bridge) {
- ret = exynos_drm_attach_lcd_bridge(dp, encoder);
- if (ret)
- return -ENODEV;
- }
-
connector->polled = DRM_CONNECTOR_POLL_HPD;
ret = drm_connector_init(dp->drm_dev, connector,
- &exynos_dp_connector_funcs, DRM_MODE_CONNECTOR_eDP);
+ &analogix_dp_connector_funcs,
+ DRM_MODE_CONNECTOR_eDP);
if (ret) {
DRM_ERROR("Failed to initialize connector with drm\n");
return ret;
}
- drm_connector_helper_add(connector, &exynos_dp_connector_helper_funcs);
+ drm_connector_helper_add(connector,
+ &analogix_dp_connector_helper_funcs);
drm_connector_register(connector);
drm_mode_connector_attach_encoder(connector, encoder);
- if (dp->panel)
- ret = drm_panel_attach(dp->panel, &dp->connector);
+ if (dp->plat_data && dp->plat_data->panel) {
+ ret = drm_panel_attach(dp->plat_data->panel, &dp->connector);
+ if (ret) {
+ DRM_ERROR("Failed to attach panel\n");
+ return ret;
+ }
+ }
+
+ /*
+ * This should be the end of attach function, caused
+ * we should ensure dp bridge could attach first.
+ */
+ if (dp->plat_data && dp->plat_data->attach) {
+ ret = dp->plat_data->attach(dp->plat_data, bridge);
+ if (ret) {
+ DRM_ERROR("Failed at platform attch func\n");
+ return ret;
+ }
+ }
- return ret;
+ return 0;
}
-static void exynos_dp_bridge_nop(struct drm_bridge *bridge)
+static void analogix_dp_bridge_nop(struct drm_bridge *bridge)
{
/* do nothing */
}
-static void exynos_dp_bridge_enable(struct drm_bridge *bridge)
+static void analogix_dp_bridge_enable(struct drm_bridge *bridge)
{
- struct exynos_dp_device *dp = bridge->driver_private;
+ struct analogix_dp_device *dp = bridge->driver_private;
- exynos_dp_poweron(dp);
+ analogix_dp_poweron(dp);
dp->dpms_mode = DRM_MODE_DPMS_ON;
}
-static void exynos_dp_bridge_disable(struct drm_bridge *bridge)
+static void analogix_dp_bridge_disable(struct drm_bridge *bridge)
{
- struct exynos_dp_device *dp = bridge->driver_private;
+ struct analogix_dp_device *dp = bridge->driver_private;
- exynos_dp_poweroff(dp);
+ analogix_dp_poweroff(dp);
dp->dpms_mode = DRM_MODE_DPMS_OFF;
}
-static const struct drm_bridge_funcs exynos_dp_bridge_funcs = {
- .enable = exynos_dp_bridge_enable,
- .disable = exynos_dp_bridge_disable,
- .pre_enable = exynos_dp_bridge_nop,
- .post_disable = exynos_dp_bridge_nop,
- .attach = exynos_dp_bridge_attach,
+static const struct drm_bridge_funcs analogix_dp_bridge_funcs = {
+ .enable = analogix_dp_bridge_enable,
+ .disable = analogix_dp_bridge_disable,
+ .pre_enable = analogix_dp_bridge_nop,
+ .post_disable = analogix_dp_bridge_nop,
+ .attach = analogix_dp_bridge_attach,
};
-static int exynos_dp_create_connector(struct exynos_drm_display *display,
- struct drm_encoder *encoder)
+static int analogix_dp_bridge_register(struct drm_device *drm_dev,
+ struct analogix_dp_device *dp)
+
{
- struct exynos_dp_device *dp = display_to_dp(display);
- struct drm_device *drm_dev = dp->drm_dev;
struct drm_bridge *bridge;
int ret;
@@ -1165,11 +1146,10 @@ static int exynos_dp_create_connector(struct exynos_drm_display *display,
}
dp->bridge = bridge;
- dp->encoder = encoder;
bridge->driver_private = dp;
bridge->encoder = dp->encoder;
- bridge->funcs = &exynos_dp_bridge_funcs;
+ bridge->funcs = &analogix_dp_bridge_funcs;
ret = drm_bridge_attach(drm_dev, bridge);
if (ret) {
@@ -1180,18 +1160,7 @@ static int exynos_dp_create_connector(struct exynos_drm_display *display,
return 0;
}
-static void exynos_dp_dpms(struct exynos_drm_display *display, int mode)
-{
- /* do nothing */
-}
-
-static struct exynos_drm_display_ops exynos_dp_display_ops = {
- .create_connector = exynos_dp_create_connector,
- .dpms = exynos_dp_dpms,
- .commit = exynos_dp_commit,
-};
-
-static struct video_info *exynos_dp_dt_parse_pdata(struct device *dev)
+static struct video_info *analogix_dp_dt_parse_pdata(struct device *dev)
{
struct device_node *dp_node = dev->of_node;
struct video_info *dp_video_config;
@@ -1249,7 +1218,7 @@ static struct video_info *exynos_dp_dt_parse_pdata(struct device *dev)
return dp_video_config;
}
-static int exynos_dp_dt_parse_panel(struct exynos_dp_device *dp)
+static int analogix_dp_dt_parse_panel(struct analogix_dp_device *dp)
{
int ret;
@@ -1262,19 +1231,33 @@ static int exynos_dp_dt_parse_panel(struct exynos_dp_device *dp)
return 0;
}
-static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
+int analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,
+ struct drm_encoder *encoder,
+ struct analogix_dp_plat_data *plat_data)
{
- struct exynos_dp_device *dp = dev_get_drvdata(dev);
struct platform_device *pdev = to_platform_device(dev);
- struct drm_device *drm_dev = data;
+ struct analogix_dp_device *dp;
struct resource *res;
unsigned int irq_flags;
int ret = 0;
+ dp = devm_kzalloc(dev, sizeof(struct analogix_dp_device), GFP_KERNEL);
+ if (!dp)
+ return -ENOMEM;
+
+ dev_set_drvdata(dev, dp);
+
dp->dev = &pdev->dev;
dp->dpms_mode = DRM_MODE_DPMS_OFF;
- dp->video_info = exynos_dp_dt_parse_pdata(&pdev->dev);
+ /*
+ * platform dp driver need containor_of the plat_data to get
+ * the driver private data, so we need to store the point of
+ * plat_data, not the context of plat_data.
+ */
+ dp->plat_data = plat_data;
+
+ dp->video_info = analogix_dp_dt_parse_pdata(&pdev->dev);
if (IS_ERR(dp->video_info))
return PTR_ERR(dp->video_info);
@@ -1294,8 +1277,8 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
}
}
- if (!dp->panel && !dp->ptn_bridge) {
- ret = exynos_dp_dt_parse_panel(dp);
+ if (!dp->plat_data || !dp->plat_data->panel) {
+ ret = analogix_dp_dt_parse_panel(dp);
if (ret)
return ret;
}
@@ -1343,14 +1326,14 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
return -ENODEV;
}
- INIT_WORK(&dp->hotplug_work, exynos_dp_hotplug);
+ INIT_WORK(&dp->hotplug_work, analogix_dp_hotplug);
- exynos_dp_phy_init(dp);
+ analogix_dp_phy_init(dp);
- exynos_dp_init_dp(dp);
+ analogix_dp_init_dp(dp);
- ret = devm_request_irq(&pdev->dev, dp->irq, exynos_dp_irq_handler,
- irq_flags, "exynos-dp", dp);
+ ret = devm_request_irq(&pdev->dev, dp->irq, analogix_dp_irq_handler,
+ irq_flags, "analogix-dp", dp);
if (ret) {
dev_err(&pdev->dev, "failed to request irq\n");
return ret;
@@ -1358,109 +1341,39 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
disable_irq(dp->irq);
dp->drm_dev = drm_dev;
+ dp->encoder = encoder;
- return exynos_drm_create_enc_conn(drm_dev, &dp->display);
-}
-
-static void exynos_dp_unbind(struct device *dev, struct device *master,
- void *data)
-{
- struct exynos_dp_device *dp = dev_get_drvdata(dev);
-
- exynos_dp_bridge_disable(dp->bridge);
-}
-
-static const struct component_ops exynos_dp_ops = {
- .bind = exynos_dp_bind,
- .unbind = exynos_dp_unbind,
-};
-
-static int exynos_dp_probe(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct device_node *panel_node, *bridge_node, *endpoint;
- struct exynos_dp_device *dp;
-
- dp = devm_kzalloc(&pdev->dev, sizeof(struct exynos_dp_device),
- GFP_KERNEL);
- if (!dp)
- return -ENOMEM;
-
- dp->display.type = EXYNOS_DISPLAY_TYPE_LCD;
- dp->display.ops = &exynos_dp_display_ops;
- platform_set_drvdata(pdev, dp);
-
- panel_node = of_parse_phandle(dev->of_node, "panel", 0);
- if (panel_node) {
- dp->panel = of_drm_find_panel(panel_node);
- of_node_put(panel_node);
- if (!dp->panel)
- return -EPROBE_DEFER;
- }
-
- endpoint = of_graph_get_next_endpoint(dev->of_node, NULL);
- if (endpoint) {
- bridge_node = of_graph_get_remote_port_parent(endpoint);
- if (bridge_node) {
- dp->ptn_bridge = of_drm_find_bridge(bridge_node);
- of_node_put(bridge_node);
- if (!dp->ptn_bridge)
- return -EPROBE_DEFER;
- } else {
- return -EPROBE_DEFER;
- }
- }
-
- return component_add(&pdev->dev, &exynos_dp_ops);
+ return analogix_dp_bridge_register(drm_dev, dp);
}
+EXPORT_SYMBOL_GPL(analogix_dp_bind);
-static int exynos_dp_remove(struct platform_device *pdev)
+void analogix_dp_unbind(struct device *dev, struct device *master, void *data)
{
- component_del(&pdev->dev, &exynos_dp_ops);
+ struct analogix_dp_device *dp = dev_get_drvdata(dev);
- return 0;
+ analogix_dp_bridge_disable(dp->bridge);
}
+EXPORT_SYMBOL_GPL(analogix_dp_unbind);
-#ifdef CONFIG_PM_SLEEP
-static int exynos_dp_suspend(struct device *dev)
+int analogix_dp_suspend(struct device *dev)
{
- struct exynos_dp_device *dp = dev_get_drvdata(dev);
+ struct analogix_dp_device *dp = dev_get_drvdata(dev);
- exynos_dp_bridge_disable(dp->bridge);
+ analogix_dp_bridge_disable(dp->bridge);
return 0;
}
+EXPORT_SYMBOL_GPL(analogix_dp_suspend);
-static int exynos_dp_resume(struct device *dev)
+int analogix_dp_resume(struct device *dev)
{
- struct exynos_dp_device *dp = dev_get_drvdata(dev);
+ struct analogix_dp_device *dp = dev_get_drvdata(dev);
- exynos_dp_bridge_enable(dp->bridge);
+ analogix_dp_bridge_enable(dp->bridge);
return 0;
}
-#endif
-
-static const struct dev_pm_ops exynos_dp_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(exynos_dp_suspend, exynos_dp_resume)
-};
-
-static const struct of_device_id exynos_dp_match[] = {
- { .compatible = "samsung,exynos5-dp" },
- {},
-};
-MODULE_DEVICE_TABLE(of, exynos_dp_match);
-
-struct platform_driver dp_driver = {
- .probe = exynos_dp_probe,
- .remove = exynos_dp_remove,
- .driver = {
- .name = "exynos-dp",
- .owner = THIS_MODULE,
- .pm = &exynos_dp_pm_ops,
- .of_match_table = exynos_dp_match,
- },
-};
+EXPORT_SYMBOL_GPL(analogix_dp_resume);
MODULE_AUTHOR("Jingoo Han <[email protected]>");
MODULE_AUTHOR("Yakir Yang <[email protected]>");
-MODULE_DESCRIPTION("Samsung SoC DP Driver");
+MODULE_DESCRIPTION("Analogix Core DP Driver");
MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpu/drm/bridge/analogix_dp_core.h b/drivers/gpu/drm/bridge/analogix_dp_core.h
new file mode 100644
index 0000000..fe72695
--- /dev/null
+++ b/drivers/gpu/drm/bridge/analogix_dp_core.h
@@ -0,0 +1,286 @@
+/*
+ * Header file for Samsung DP (Display Port) interface driver.
+ *
+ * Copyright (C) 2012 Samsung Electronics Co., Ltd.
+ * Author: Jingoo Han <[email protected]>
+ * Yakir Yang <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef _ANALOGIX_DP_CORE_H
+#define _ANALOGIX_DP_CORE_H
+
+#include <drm/drm_crtc.h>
+#include <drm/drm_dp_helper.h>
+#include <drm/exynos_drm.h>
+
+#define DP_TIMEOUT_LOOP_COUNT 100
+#define MAX_CR_LOOP 5
+#define MAX_EQ_LOOP 5
+
+enum link_rate_type {
+ LINK_RATE_1_62GBPS = 0x06,
+ LINK_RATE_2_70GBPS = 0x0a
+};
+
+enum link_lane_count_type {
+ LANE_COUNT1 = 1,
+ LANE_COUNT2 = 2,
+ LANE_COUNT4 = 4
+};
+
+enum link_training_state {
+ START,
+ CLOCK_RECOVERY,
+ EQUALIZER_TRAINING,
+ FINISHED,
+ FAILED
+};
+
+enum voltage_swing_level {
+ VOLTAGE_LEVEL_0,
+ VOLTAGE_LEVEL_1,
+ VOLTAGE_LEVEL_2,
+ VOLTAGE_LEVEL_3,
+};
+
+enum pre_emphasis_level {
+ PRE_EMPHASIS_LEVEL_0,
+ PRE_EMPHASIS_LEVEL_1,
+ PRE_EMPHASIS_LEVEL_2,
+ PRE_EMPHASIS_LEVEL_3,
+};
+
+enum pattern_set {
+ PRBS7,
+ D10_2,
+ TRAINING_PTN1,
+ TRAINING_PTN2,
+ DP_NONE
+};
+
+enum color_space {
+ COLOR_RGB,
+ COLOR_YCBCR422,
+ COLOR_YCBCR444
+};
+
+enum color_depth {
+ COLOR_6,
+ COLOR_8,
+ COLOR_10,
+ COLOR_12
+};
+
+enum color_coefficient {
+ COLOR_YCBCR601,
+ COLOR_YCBCR709
+};
+
+enum dynamic_range {
+ VESA,
+ CEA
+};
+
+enum pll_status {
+ PLL_UNLOCKED,
+ PLL_LOCKED
+};
+
+enum clock_recovery_m_value_type {
+ CALCULATED_M,
+ REGISTER_M
+};
+
+enum video_timing_recognition_type {
+ VIDEO_TIMING_FROM_CAPTURE,
+ VIDEO_TIMING_FROM_REGISTER
+};
+
+enum analog_power_block {
+ AUX_BLOCK,
+ CH0_BLOCK,
+ CH1_BLOCK,
+ CH2_BLOCK,
+ CH3_BLOCK,
+ ANALOG_TOTAL,
+ POWER_ALL
+};
+
+enum dp_irq_type {
+ DP_IRQ_TYPE_HP_CABLE_IN,
+ DP_IRQ_TYPE_HP_CABLE_OUT,
+ DP_IRQ_TYPE_HP_CHANGE,
+ DP_IRQ_TYPE_UNKNOWN,
+};
+
+struct video_info {
+ char *name;
+
+ bool h_sync_polarity;
+ bool v_sync_polarity;
+ bool interlaced;
+
+ enum color_space color_space;
+ enum dynamic_range dynamic_range;
+ enum color_coefficient ycbcr_coeff;
+ enum color_depth color_depth;
+
+ enum link_rate_type link_rate;
+ enum link_lane_count_type lane_count;
+};
+
+struct link_train {
+ int eq_loop;
+ int cr_loop[4];
+
+ u8 link_rate;
+ u8 lane_count;
+ u8 training_lane[4];
+
+ enum link_training_state lt_state;
+};
+
+struct analogix_dp_device {
+ struct device *dev;
+ struct drm_device *drm_dev;
+ struct drm_connector connector;
+ struct drm_encoder *encoder;
+ struct drm_bridge *bridge;
+ struct clk *clock;
+ unsigned int irq;
+ void __iomem *reg_base;
+
+ struct video_info *video_info;
+ struct link_train link_train;
+ struct work_struct hotplug_work;
+ struct phy *phy;
+ int dpms_mode;
+ int hpd_gpio;
+
+ struct analogix_dp_plat_data *plat_data;
+
+ struct exynos_drm_panel_info priv;
+};
+
+/* analogix_dp_reg.c */
+void analogix_dp_enable_video_mute(struct analogix_dp_device *dp, bool enable);
+void analogix_dp_stop_video(struct analogix_dp_device *dp);
+void analogix_dp_lane_swap(struct analogix_dp_device *dp, bool enable);
+void analogix_dp_init_analog_param(struct analogix_dp_device *dp);
+void analogix_dp_init_interrupt(struct analogix_dp_device *dp);
+void analogix_dp_reset(struct analogix_dp_device *dp);
+void analogix_dp_swreset(struct analogix_dp_device *dp);
+void analogix_dp_config_interrupt(struct analogix_dp_device *dp);
+enum pll_status analogix_dp_get_pll_lock_status(struct analogix_dp_device *dp);
+void analogix_dp_set_pll_power_down(struct analogix_dp_device *dp, bool enable);
+void analogix_dp_set_analog_power_down(struct analogix_dp_device *dp,
+ enum analog_power_block block,
+ bool enable);
+void analogix_dp_init_analog_func(struct analogix_dp_device *dp);
+void analogix_dp_init_hpd(struct analogix_dp_device *dp);
+enum dp_irq_type analogix_dp_get_irq_type(struct analogix_dp_device *dp);
+void analogix_dp_clear_hotplug_interrupts(struct analogix_dp_device *dp);
+void analogix_dp_reset_aux(struct analogix_dp_device *dp);
+void analogix_dp_init_aux(struct analogix_dp_device *dp);
+int analogix_dp_get_plug_in_status(struct analogix_dp_device *dp);
+void analogix_dp_enable_sw_function(struct analogix_dp_device *dp);
+int analogix_dp_start_aux_transaction(struct analogix_dp_device *dp);
+int analogix_dp_write_byte_to_dpcd(struct analogix_dp_device *dp,
+ unsigned int reg_addr,
+ unsigned char data);
+int analogix_dp_read_byte_from_dpcd(struct analogix_dp_device *dp,
+ unsigned int reg_addr,
+ unsigned char *data);
+int analogix_dp_write_bytes_to_dpcd(struct analogix_dp_device *dp,
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char data[]);
+int analogix_dp_read_bytes_from_dpcd(struct analogix_dp_device *dp,
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char data[]);
+int analogix_dp_select_i2c_device(struct analogix_dp_device *dp,
+ unsigned int device_addr,
+ unsigned int reg_addr);
+int analogix_dp_read_byte_from_i2c(struct analogix_dp_device *dp,
+ unsigned int device_addr,
+ unsigned int reg_addr,
+ unsigned int *data);
+int analogix_dp_read_bytes_from_i2c(struct analogix_dp_device *dp,
+ unsigned int device_addr,
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char edid[]);
+void analogix_dp_set_link_bandwidth(struct analogix_dp_device *dp, u32 bwtype);
+void analogix_dp_get_link_bandwidth(struct analogix_dp_device *dp, u32 *bwtype);
+void analogix_dp_set_lane_count(struct analogix_dp_device *dp, u32 count);
+void analogix_dp_get_lane_count(struct analogix_dp_device *dp, u32 *count);
+void analogix_dp_enable_enhanced_mode(struct analogix_dp_device *dp,
+ bool enable);
+void analogix_dp_set_training_pattern(struct analogix_dp_device *dp,
+ enum pattern_set pattern);
+void analogix_dp_set_lane0_pre_emphasis(struct analogix_dp_device *dp,
+ u32 level);
+void analogix_dp_set_lane1_pre_emphasis(struct analogix_dp_device *dp,
+ u32 level);
+void analogix_dp_set_lane2_pre_emphasis(struct analogix_dp_device *dp,
+ u32 level);
+void analogix_dp_set_lane3_pre_emphasis(struct analogix_dp_device *dp,
+ u32 level);
+void analogix_dp_set_lane0_link_training(struct analogix_dp_device *dp,
+ u32 training_lane);
+void analogix_dp_set_lane1_link_training(struct analogix_dp_device *dp,
+ u32 training_lane);
+void analogix_dp_set_lane2_link_training(struct analogix_dp_device *dp,
+ u32 training_lane);
+void analogix_dp_set_lane3_link_training(struct analogix_dp_device *dp,
+ u32 training_lane);
+u32 analogix_dp_get_lane0_link_training(struct analogix_dp_device *dp);
+u32 analogix_dp_get_lane1_link_training(struct analogix_dp_device *dp);
+u32 analogix_dp_get_lane2_link_training(struct analogix_dp_device *dp);
+u32 analogix_dp_get_lane3_link_training(struct analogix_dp_device *dp);
+void analogix_dp_reset_macro(struct analogix_dp_device *dp);
+void analogix_dp_init_video(struct analogix_dp_device *dp);
+
+void analogix_dp_set_video_color_format(struct analogix_dp_device *dp);
+int analogix_dp_is_slave_video_stream_clock_on(struct analogix_dp_device *dp);
+void analogix_dp_set_video_cr_mn(struct analogix_dp_device *dp,
+ enum clock_recovery_m_value_type type,
+ u32 m_value, u32 n_value);
+void analogix_dp_set_video_timing_mode(struct analogix_dp_device *dp, u32 type);
+void analogix_dp_enable_video_master(struct analogix_dp_device *dp,
+ bool enable);
+void analogix_dp_start_video(struct analogix_dp_device *dp);
+int analogix_dp_is_video_stream_on(struct analogix_dp_device *dp);
+void analogix_dp_config_video_slave_mode(struct analogix_dp_device *dp);
+void analogix_dp_enable_scrambling(struct analogix_dp_device *dp);
+void analogix_dp_disable_scrambling(struct analogix_dp_device *dp);
+
+/* I2C EDID Chip ID, Slave Address */
+#define I2C_EDID_DEVICE_ADDR 0x50
+#define I2C_E_EDID_DEVICE_ADDR 0x30
+
+#define EDID_BLOCK_LENGTH 0x80
+#define EDID_HEADER_PATTERN 0x00
+#define EDID_EXTENSION_FLAG 0x7e
+#define EDID_CHECKSUM 0x7f
+
+/* DP_MAX_LANE_COUNT */
+#define DPCD_ENHANCED_FRAME_CAP(x) (((x) >> 7) & 0x1)
+#define DPCD_MAX_LANE_COUNT(x) ((x) & 0x1f)
+
+/* DP_LANE_COUNT_SET */
+#define DPCD_LANE_COUNT_SET(x) ((x) & 0x1f)
+
+/* DP_TRAINING_LANE0_SET */
+#define DPCD_PRE_EMPHASIS_SET(x) (((x) & 0x3) << 3)
+#define DPCD_PRE_EMPHASIS_GET(x) (((x) >> 3) & 0x3)
+#define DPCD_VOLTAGE_SWING_SET(x) (((x) & 0x3) << 0)
+#define DPCD_VOLTAGE_SWING_GET(x) (((x) >> 0) & 0x3)
+
+#endif /* _ANALOGIX_DP_CORE_H */
diff --git a/drivers/gpu/drm/bridge/analogix_dp_reg.c b/drivers/gpu/drm/bridge/analogix_dp_reg.c
new file mode 100644
index 0000000..dfbbde7
--- /dev/null
+++ b/drivers/gpu/drm/bridge/analogix_dp_reg.c
@@ -0,0 +1,1266 @@
+/*
+ * Samsung DP (Display port) register interface driver.
+ *
+ * Copyright (C) 2012 Samsung Electronics Co., Ltd.
+ * Author: Jingoo Han <[email protected]>
+ * Yakir Yang <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+
+#include "analogix_dp_core.h"
+#include "analogix_dp_reg.h"
+
+#define COMMON_INT_MASK_1 0
+#define COMMON_INT_MASK_2 0
+#define COMMON_INT_MASK_3 0
+#define COMMON_INT_MASK_4 (HOTPLUG_CHG | HPD_LOST | PLUG)
+#define INT_STA_MASK INT_HPD
+
+void analogix_dp_enable_video_mute(struct analogix_dp_device *dp, bool enable)
+{
+ u32 reg;
+
+ if (enable) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
+ reg |= HDCP_VIDEO_MUTE;
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
+ reg &= ~HDCP_VIDEO_MUTE;
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
+ }
+}
+
+void analogix_dp_stop_video(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
+ reg &= ~VIDEO_EN;
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
+}
+
+void analogix_dp_lane_swap(struct analogix_dp_device *dp, bool enable)
+{
+ u32 reg;
+
+ if (enable)
+ reg = LANE3_MAP_LOGIC_LANE_0 | LANE2_MAP_LOGIC_LANE_1 |
+ LANE1_MAP_LOGIC_LANE_2 | LANE0_MAP_LOGIC_LANE_3;
+ else
+ reg = LANE3_MAP_LOGIC_LANE_3 | LANE2_MAP_LOGIC_LANE_2 |
+ LANE1_MAP_LOGIC_LANE_1 | LANE0_MAP_LOGIC_LANE_0;
+
+ writel(reg, dp->reg_base + ANALOGIX_DP_LANE_MAP);
+}
+
+void analogix_dp_init_analog_param(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = TX_TERMINAL_CTRL_50_OHM;
+ writel(reg, dp->reg_base + ANALOGIX_DP_ANALOG_CTL_1);
+
+ reg = SEL_24M | TX_DVDD_BIT_1_0625V;
+ writel(reg, dp->reg_base + ANALOGIX_DP_ANALOG_CTL_2);
+
+ reg = DRIVE_DVDD_BIT_1_0625V | VCO_BIT_600_MICRO;
+ writel(reg, dp->reg_base + ANALOGIX_DP_ANALOG_CTL_3);
+
+ reg = PD_RING_OSC | AUX_TERMINAL_CTRL_50_OHM |
+ TX_CUR1_2X | TX_CUR_16_MA;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PLL_FILTER_CTL_1);
+
+ reg = CH3_AMP_400_MV | CH2_AMP_400_MV |
+ CH1_AMP_400_MV | CH0_AMP_400_MV;
+ writel(reg, dp->reg_base + ANALOGIX_DP_TX_AMP_TUNING_CTL);
+}
+
+void analogix_dp_init_interrupt(struct analogix_dp_device *dp)
+{
+ /* Set interrupt pin assertion polarity as high */
+ writel(INT_POL1 | INT_POL0, dp->reg_base + ANALOGIX_DP_INT_CTL);
+
+ /* Clear pending regisers */
+ writel(0xff, dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_1);
+ writel(0x4f, dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_2);
+ writel(0xe0, dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_3);
+ writel(0xe7, dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_4);
+ writel(0x63, dp->reg_base + ANALOGIX_DP_INT_STA);
+
+ /* 0:mask,1: unmask */
+ writel(0x00, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_1);
+ writel(0x00, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_2);
+ writel(0x00, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_3);
+ writel(0x00, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_4);
+ writel(0x00, dp->reg_base + ANALOGIX_DP_INT_STA_MASK);
+}
+
+void analogix_dp_reset(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ analogix_dp_stop_video(dp);
+ analogix_dp_enable_video_mute(dp, 0);
+
+ reg = MASTER_VID_FUNC_EN_N | SLAVE_VID_FUNC_EN_N |
+ AUD_FIFO_FUNC_EN_N | AUD_FUNC_EN_N |
+ HDCP_FUNC_EN_N | SW_FUNC_EN_N;
+ writel(reg, dp->reg_base + ANALOGIX_DP_FUNC_EN_1);
+
+ reg = SSC_FUNC_EN_N | AUX_FUNC_EN_N |
+ SERDES_FIFO_FUNC_EN_N |
+ LS_CLK_DOMAIN_FUNC_EN_N;
+ writel(reg, dp->reg_base + ANALOGIX_DP_FUNC_EN_2);
+
+ usleep_range(20, 30);
+
+ analogix_dp_lane_swap(dp, 0);
+
+ writel(0x0, dp->reg_base + ANALOGIX_DP_SYS_CTL_1);
+ writel(0x40, dp->reg_base + ANALOGIX_DP_SYS_CTL_2);
+ writel(0x0, dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
+ writel(0x0, dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
+
+ writel(0x0, dp->reg_base + ANALOGIX_DP_PKT_SEND_CTL);
+ writel(0x0, dp->reg_base + ANALOGIX_DP_HDCP_CTL);
+
+ writel(0x5e, dp->reg_base + ANALOGIX_DP_HPD_DEGLITCH_L);
+ writel(0x1a, dp->reg_base + ANALOGIX_DP_HPD_DEGLITCH_H);
+
+ writel(0x10, dp->reg_base + ANALOGIX_DP_LINK_DEBUG_CTL);
+
+ writel(0x0, dp->reg_base + ANALOGIX_DP_PHY_TEST);
+
+ writel(0x0, dp->reg_base + ANALOGIX_DP_VIDEO_FIFO_THRD);
+ writel(0x20, dp->reg_base + ANALOGIX_DP_AUDIO_MARGIN);
+
+ writel(0x4, dp->reg_base + ANALOGIX_DP_M_VID_GEN_FILTER_TH);
+ writel(0x2, dp->reg_base + ANALOGIX_DP_M_AUD_GEN_FILTER_TH);
+
+ writel(0x00000101, dp->reg_base + ANALOGIX_DP_SOC_GENERAL_CTL);
+}
+
+void analogix_dp_swreset(struct analogix_dp_device *dp)
+{
+ writel(RESET_DP_TX, dp->reg_base + ANALOGIX_DP_TX_SW_RESET);
+}
+
+void analogix_dp_config_interrupt(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ /* 0: mask, 1: unmask */
+ reg = COMMON_INT_MASK_1;
+ writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_1);
+
+ reg = COMMON_INT_MASK_2;
+ writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_2);
+
+ reg = COMMON_INT_MASK_3;
+ writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_3);
+
+ reg = COMMON_INT_MASK_4;
+ writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_4);
+
+ reg = INT_STA_MASK;
+ writel(reg, dp->reg_base + ANALOGIX_DP_INT_STA_MASK);
+}
+
+enum pll_status analogix_dp_get_pll_lock_status(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_DEBUG_CTL);
+ if (reg & PLL_LOCK)
+ return PLL_LOCKED;
+ else
+ return PLL_UNLOCKED;
+}
+
+void analogix_dp_set_pll_power_down(struct analogix_dp_device *dp, bool enable)
+{
+ u32 reg;
+
+ if (enable) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PLL_CTL);
+ reg |= DP_PLL_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PLL_CTL);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PLL_CTL);
+ reg &= ~DP_PLL_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PLL_CTL);
+ }
+}
+
+void analogix_dp_set_analog_power_down(struct analogix_dp_device *dp,
+ enum analog_power_block block,
+ bool enable)
+{
+ u32 reg;
+
+ switch (block) {
+ case AUX_BLOCK:
+ if (enable) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg |= AUX_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg &= ~AUX_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ }
+ break;
+ case CH0_BLOCK:
+ if (enable) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg |= CH0_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg &= ~CH0_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ }
+ break;
+ case CH1_BLOCK:
+ if (enable) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg |= CH1_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg &= ~CH1_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ }
+ break;
+ case CH2_BLOCK:
+ if (enable) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg |= CH2_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg &= ~CH2_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ }
+ break;
+ case CH3_BLOCK:
+ if (enable) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg |= CH3_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg &= ~CH3_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ }
+ break;
+ case ANALOG_TOTAL:
+ if (enable) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg |= DP_PHY_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg &= ~DP_PHY_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ }
+ break;
+ case POWER_ALL:
+ if (enable) {
+ reg = DP_PHY_PD | AUX_PD | CH3_PD | CH2_PD |
+ CH1_PD | CH0_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ } else {
+ writel(0x00, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ }
+ break;
+ default:
+ break;
+ }
+}
+
+void analogix_dp_init_analog_func(struct analogix_dp_device *dp)
+{
+ u32 reg;
+ int timeout_loop = 0;
+
+ analogix_dp_set_analog_power_down(dp, POWER_ALL, 0);
+
+ reg = PLL_LOCK_CHG;
+ writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_1);
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_DEBUG_CTL);
+ reg &= ~(F_PLL_LOCK | PLL_LOCK_CTRL);
+ writel(reg, dp->reg_base + ANALOGIX_DP_DEBUG_CTL);
+
+ /* Power up PLL */
+ if (analogix_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
+ analogix_dp_set_pll_power_down(dp, 0);
+
+ while (analogix_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
+ timeout_loop++;
+ if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
+ dev_err(dp->dev, "failed to get pll lock status\n");
+ return;
+ }
+ usleep_range(10, 20);
+ }
+ }
+
+ /* Enable Serdes FIFO function and Link symbol clock domain module */
+ reg = readl(dp->reg_base + ANALOGIX_DP_FUNC_EN_2);
+ reg &= ~(SERDES_FIFO_FUNC_EN_N | LS_CLK_DOMAIN_FUNC_EN_N
+ | AUX_FUNC_EN_N);
+ writel(reg, dp->reg_base + ANALOGIX_DP_FUNC_EN_2);
+}
+
+void analogix_dp_clear_hotplug_interrupts(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ if (gpio_is_valid(dp->hpd_gpio))
+ return;
+
+ reg = HOTPLUG_CHG | HPD_LOST | PLUG;
+ writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_4);
+
+ reg = INT_HPD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_INT_STA);
+}
+
+void analogix_dp_init_hpd(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ if (gpio_is_valid(dp->hpd_gpio))
+ return;
+
+ analogix_dp_clear_hotplug_interrupts(dp);
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
+ reg &= ~(F_HPD | HPD_CTRL);
+ writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
+}
+
+enum dp_irq_type analogix_dp_get_irq_type(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ if (gpio_is_valid(dp->hpd_gpio)) {
+ reg = gpio_get_value(dp->hpd_gpio);
+ if (reg)
+ return DP_IRQ_TYPE_HP_CABLE_IN;
+ else
+ return DP_IRQ_TYPE_HP_CABLE_OUT;
+ } else {
+ /* Parse hotplug interrupt status register */
+ reg = readl(dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_4);
+
+ if (reg & PLUG)
+ return DP_IRQ_TYPE_HP_CABLE_IN;
+
+ if (reg & HPD_LOST)
+ return DP_IRQ_TYPE_HP_CABLE_OUT;
+
+ if (reg & HOTPLUG_CHG)
+ return DP_IRQ_TYPE_HP_CHANGE;
+
+ return DP_IRQ_TYPE_UNKNOWN;
+ }
+}
+
+void analogix_dp_reset_aux(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ /* Disable AUX channel module */
+ reg = readl(dp->reg_base + ANALOGIX_DP_FUNC_EN_2);
+ reg |= AUX_FUNC_EN_N;
+ writel(reg, dp->reg_base + ANALOGIX_DP_FUNC_EN_2);
+}
+
+void analogix_dp_init_aux(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ /* Clear inerrupts related to AUX channel */
+ reg = RPLY_RECEIV | AUX_ERR;
+ writel(reg, dp->reg_base + ANALOGIX_DP_INT_STA);
+
+ analogix_dp_reset_aux(dp);
+
+ /* Disable AUX transaction H/W retry */
+ reg = AUX_BIT_PERIOD_EXPECTED_DELAY(3) | AUX_HW_RETRY_COUNT_SEL(0) |
+ AUX_HW_RETRY_INTERVAL_600_MICROSECONDS;
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_HW_RETRY_CTL);
+
+ /* Receive AUX Channel DEFER commands equal to DEFFER_COUNT*64 */
+ reg = DEFER_CTRL_EN | DEFER_COUNT(1);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_DEFER_CTL);
+
+ /* Enable AUX channel module */
+ reg = readl(dp->reg_base + ANALOGIX_DP_FUNC_EN_2);
+ reg &= ~AUX_FUNC_EN_N;
+ writel(reg, dp->reg_base + ANALOGIX_DP_FUNC_EN_2);
+}
+
+int analogix_dp_get_plug_in_status(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ if (gpio_is_valid(dp->hpd_gpio)) {
+ if (gpio_get_value(dp->hpd_gpio))
+ return 0;
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
+ if (reg & HPD_STATUS)
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+void analogix_dp_enable_sw_function(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_FUNC_EN_1);
+ reg &= ~SW_FUNC_EN_N;
+ writel(reg, dp->reg_base + ANALOGIX_DP_FUNC_EN_1);
+}
+
+int analogix_dp_start_aux_transaction(struct analogix_dp_device *dp)
+{
+ int reg;
+ int retval = 0;
+ int timeout_loop = 0;
+
+ /* Enable AUX CH operation */
+ reg = readl(dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_2);
+ reg |= AUX_EN;
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_2);
+
+ /* Is AUX CH command reply received? */
+ reg = readl(dp->reg_base + ANALOGIX_DP_INT_STA);
+ while (!(reg & RPLY_RECEIV)) {
+ timeout_loop++;
+ if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
+ dev_err(dp->dev, "AUX CH command reply failed!\n");
+ return -ETIMEDOUT;
+ }
+ reg = readl(dp->reg_base + ANALOGIX_DP_INT_STA);
+ usleep_range(10, 11);
+ }
+
+ /* Clear interrupt source for AUX CH command reply */
+ writel(RPLY_RECEIV, dp->reg_base + ANALOGIX_DP_INT_STA);
+
+ /* Clear interrupt source for AUX CH access error */
+ reg = readl(dp->reg_base + ANALOGIX_DP_INT_STA);
+ if (reg & AUX_ERR) {
+ writel(AUX_ERR, dp->reg_base + ANALOGIX_DP_INT_STA);
+ return -EREMOTEIO;
+ }
+
+ /* Check AUX CH error access status */
+ reg = readl(dp->reg_base + ANALOGIX_DP_AUX_CH_STA);
+ if ((reg & AUX_STATUS_MASK) != 0) {
+ dev_err(dp->dev, "AUX CH error happens: %d\n\n",
+ reg & AUX_STATUS_MASK);
+ return -EREMOTEIO;
+ }
+
+ return retval;
+}
+
+int analogix_dp_write_byte_to_dpcd(struct analogix_dp_device *dp,
+ unsigned int reg_addr,
+ unsigned char data)
+{
+ u32 reg;
+ int i;
+ int retval;
+
+ for (i = 0; i < 3; i++) {
+ /* Clear AUX CH data buffer */
+ reg = BUF_CLR;
+ writel(reg, dp->reg_base + ANALOGIX_DP_BUFFER_DATA_CTL);
+
+ /* Select DPCD device address */
+ reg = AUX_ADDR_7_0(reg_addr);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_7_0);
+ reg = AUX_ADDR_15_8(reg_addr);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_15_8);
+ reg = AUX_ADDR_19_16(reg_addr);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_19_16);
+
+ /* Write data buffer */
+ reg = (unsigned int)data;
+ writel(reg, dp->reg_base + ANALOGIX_DP_BUF_DATA_0);
+
+ /*
+ * Set DisplayPort transaction and write 1 byte
+ * If bit 3 is 1, DisplayPort transaction.
+ * If Bit 3 is 0, I2C transaction.
+ */
+ reg = AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_WRITE;
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_1);
+
+ /* Start AUX transaction */
+ retval = analogix_dp_start_aux_transaction(dp);
+ if (retval == 0)
+ break;
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
+ }
+
+ return retval;
+}
+
+int analogix_dp_read_byte_from_dpcd(struct analogix_dp_device *dp,
+ unsigned int reg_addr,
+ unsigned char *data)
+{
+ u32 reg;
+ int i;
+ int retval;
+
+ for (i = 0; i < 3; i++) {
+ /* Clear AUX CH data buffer */
+ reg = BUF_CLR;
+ writel(reg, dp->reg_base + ANALOGIX_DP_BUFFER_DATA_CTL);
+
+ /* Select DPCD device address */
+ reg = AUX_ADDR_7_0(reg_addr);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_7_0);
+ reg = AUX_ADDR_15_8(reg_addr);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_15_8);
+ reg = AUX_ADDR_19_16(reg_addr);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_19_16);
+
+ /*
+ * Set DisplayPort transaction and read 1 byte
+ * If bit 3 is 1, DisplayPort transaction.
+ * If Bit 3 is 0, I2C transaction.
+ */
+ reg = AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_READ;
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_1);
+
+ /* Start AUX transaction */
+ retval = analogix_dp_start_aux_transaction(dp);
+ if (retval == 0)
+ break;
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
+ }
+
+ /* Read data buffer */
+ reg = readl(dp->reg_base + ANALOGIX_DP_BUF_DATA_0);
+ *data = (unsigned char)(reg & 0xff);
+
+ return retval;
+}
+
+int analogix_dp_write_bytes_to_dpcd(struct analogix_dp_device *dp,
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char data[])
+{
+ u32 reg;
+ unsigned int start_offset;
+ unsigned int cur_data_count;
+ unsigned int cur_data_idx;
+ int i;
+ int retval = 0;
+
+ /* Clear AUX CH data buffer */
+ reg = BUF_CLR;
+ writel(reg, dp->reg_base + ANALOGIX_DP_BUFFER_DATA_CTL);
+
+ start_offset = 0;
+ while (start_offset < count) {
+ /* Buffer size of AUX CH is 16 * 4bytes */
+ if ((count - start_offset) > 16)
+ cur_data_count = 16;
+ else
+ cur_data_count = count - start_offset;
+
+ for (i = 0; i < 3; i++) {
+ /* Select DPCD device address */
+ reg = AUX_ADDR_7_0(reg_addr + start_offset);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_7_0);
+ reg = AUX_ADDR_15_8(reg_addr + start_offset);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_15_8);
+ reg = AUX_ADDR_19_16(reg_addr + start_offset);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_19_16);
+
+ for (cur_data_idx = 0; cur_data_idx < cur_data_count;
+ cur_data_idx++) {
+ reg = data[start_offset + cur_data_idx];
+ writel(reg, dp->reg_base +
+ ANALOGIX_DP_BUF_DATA_0 +
+ 4 * cur_data_idx);
+ }
+
+ /*
+ * Set DisplayPort transaction and write
+ * If bit 3 is 1, DisplayPort transaction.
+ * If Bit 3 is 0, I2C transaction.
+ */
+ reg = AUX_LENGTH(cur_data_count) |
+ AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_WRITE;
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_1);
+
+ /* Start AUX transaction */
+ retval = analogix_dp_start_aux_transaction(dp);
+ if (retval == 0)
+ break;
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+ __func__);
+ }
+
+ start_offset += cur_data_count;
+ }
+
+ return retval;
+}
+
+int analogix_dp_read_bytes_from_dpcd(struct analogix_dp_device *dp,
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char data[])
+{
+ u32 reg;
+ unsigned int start_offset;
+ unsigned int cur_data_count;
+ unsigned int cur_data_idx;
+ int i;
+ int retval = 0;
+
+ /* Clear AUX CH data buffer */
+ reg = BUF_CLR;
+ writel(reg, dp->reg_base + ANALOGIX_DP_BUFFER_DATA_CTL);
+
+ start_offset = 0;
+ while (start_offset < count) {
+ /* Buffer size of AUX CH is 16 * 4bytes */
+ if ((count - start_offset) > 16)
+ cur_data_count = 16;
+ else
+ cur_data_count = count - start_offset;
+
+ /* AUX CH Request Transaction process */
+ for (i = 0; i < 3; i++) {
+ /* Select DPCD device address */
+ reg = AUX_ADDR_7_0(reg_addr + start_offset);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_7_0);
+ reg = AUX_ADDR_15_8(reg_addr + start_offset);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_15_8);
+ reg = AUX_ADDR_19_16(reg_addr + start_offset);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_19_16);
+
+ /*
+ * Set DisplayPort transaction and read
+ * If bit 3 is 1, DisplayPort transaction.
+ * If Bit 3 is 0, I2C transaction.
+ */
+ reg = AUX_LENGTH(cur_data_count) |
+ AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_READ;
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_1);
+
+ /* Start AUX transaction */
+ retval = analogix_dp_start_aux_transaction(dp);
+ if (retval == 0)
+ break;
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+ __func__);
+ }
+
+ for (cur_data_idx = 0; cur_data_idx < cur_data_count;
+ cur_data_idx++) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_BUF_DATA_0
+ + 4 * cur_data_idx);
+ data[start_offset + cur_data_idx] =
+ (unsigned char)reg;
+ }
+
+ start_offset += cur_data_count;
+ }
+
+ return retval;
+}
+
+int analogix_dp_select_i2c_device(struct analogix_dp_device *dp,
+ unsigned int device_addr,
+ unsigned int reg_addr)
+{
+ u32 reg;
+ int retval;
+
+ /* Set EDID device address */
+ reg = device_addr;
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_7_0);
+ writel(0x0, dp->reg_base + ANALOGIX_DP_AUX_ADDR_15_8);
+ writel(0x0, dp->reg_base + ANALOGIX_DP_AUX_ADDR_19_16);
+
+ /* Set offset from base address of EDID device */
+ writel(reg_addr, dp->reg_base + ANALOGIX_DP_BUF_DATA_0);
+
+ /*
+ * Set I2C transaction and write address
+ * If bit 3 is 1, DisplayPort transaction.
+ * If Bit 3 is 0, I2C transaction.
+ */
+ reg = AUX_TX_COMM_I2C_TRANSACTION | AUX_TX_COMM_MOT |
+ AUX_TX_COMM_WRITE;
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_1);
+
+ /* Start AUX transaction */
+ retval = analogix_dp_start_aux_transaction(dp);
+ if (retval != 0)
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
+
+ return retval;
+}
+
+int analogix_dp_read_byte_from_i2c(struct analogix_dp_device *dp,
+ unsigned int device_addr,
+ unsigned int reg_addr,
+ unsigned int *data)
+{
+ u32 reg;
+ int i;
+ int retval;
+
+ for (i = 0; i < 3; i++) {
+ /* Clear AUX CH data buffer */
+ reg = BUF_CLR;
+ writel(reg, dp->reg_base + ANALOGIX_DP_BUFFER_DATA_CTL);
+
+ /* Select EDID device */
+ retval = analogix_dp_select_i2c_device(dp, device_addr,
+ reg_addr);
+ if (retval != 0)
+ continue;
+
+ /*
+ * Set I2C transaction and read data
+ * If bit 3 is 1, DisplayPort transaction.
+ * If Bit 3 is 0, I2C transaction.
+ */
+ reg = AUX_TX_COMM_I2C_TRANSACTION |
+ AUX_TX_COMM_READ;
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_1);
+
+ /* Start AUX transaction */
+ retval = analogix_dp_start_aux_transaction(dp);
+ if (retval == 0)
+ break;
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
+ }
+
+ /* Read data */
+ if (retval == 0)
+ *data = readl(dp->reg_base + ANALOGIX_DP_BUF_DATA_0);
+
+ return retval;
+}
+
+int analogix_dp_read_bytes_from_i2c(struct analogix_dp_device *dp,
+ unsigned int device_addr,
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char edid[])
+{
+ u32 reg;
+ unsigned int i, j;
+ unsigned int cur_data_idx;
+ unsigned int defer = 0;
+ int retval = 0;
+
+ for (i = 0; i < count; i += 16) {
+ for (j = 0; j < 3; j++) {
+ /* Clear AUX CH data buffer */
+ reg = BUF_CLR;
+ writel(reg, dp->reg_base + ANALOGIX_DP_BUFFER_DATA_CTL);
+
+ /* Set normal AUX CH command */
+ reg = readl(dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_2);
+ reg &= ~ADDR_ONLY;
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_2);
+
+ /*
+ * If Rx sends defer, Tx sends only reads
+ * request without sending address
+ */
+ if (!defer)
+ retval = analogix_dp_select_i2c_device(
+ dp, device_addr, reg_addr + i);
+ else
+ defer = 0;
+
+ if (retval == 0) {
+ /*
+ * Set I2C transaction and write data
+ * If bit 3 is 1, DisplayPort transaction.
+ * If Bit 3 is 0, I2C transaction.
+ */
+ reg = AUX_LENGTH(16) |
+ AUX_TX_COMM_I2C_TRANSACTION |
+ AUX_TX_COMM_READ;
+ writel(reg, dp->reg_base +
+ ANALOGIX_DP_AUX_CH_CTL_1);
+
+ /* Start AUX transaction */
+ retval = analogix_dp_start_aux_transaction(dp);
+ if (retval == 0)
+ break;
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+ __func__);
+ }
+ /* Check if Rx sends defer */
+ reg = readl(dp->reg_base + ANALOGIX_DP_AUX_RX_COMM);
+ if (reg == AUX_RX_COMM_AUX_DEFER ||
+ reg == AUX_RX_COMM_I2C_DEFER) {
+ dev_err(dp->dev, "Defer: %d\n\n", reg);
+ defer = 1;
+ }
+ }
+
+ for (cur_data_idx = 0; cur_data_idx < 16; cur_data_idx++) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_BUF_DATA_0
+ + 4 * cur_data_idx);
+ edid[i + cur_data_idx] = (unsigned char)reg;
+ }
+ }
+
+ return retval;
+}
+
+void analogix_dp_set_link_bandwidth(struct analogix_dp_device *dp, u32 bwtype)
+{
+ u32 reg;
+
+ reg = bwtype;
+ if ((bwtype == LINK_RATE_2_70GBPS) || (bwtype == LINK_RATE_1_62GBPS))
+ writel(reg, dp->reg_base + ANALOGIX_DP_LINK_BW_SET);
+}
+
+void analogix_dp_get_link_bandwidth(struct analogix_dp_device *dp, u32 *bwtype)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_LINK_BW_SET);
+ *bwtype = reg;
+}
+
+void analogix_dp_set_lane_count(struct analogix_dp_device *dp, u32 count)
+{
+ u32 reg;
+
+ reg = count;
+ writel(reg, dp->reg_base + ANALOGIX_DP_LANE_COUNT_SET);
+}
+
+void analogix_dp_get_lane_count(struct analogix_dp_device *dp, u32 *count)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_LANE_COUNT_SET);
+ *count = reg;
+}
+
+void analogix_dp_enable_enhanced_mode(struct analogix_dp_device *dp,
+ bool enable)
+{
+ u32 reg;
+
+ if (enable) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
+ reg |= ENHANCED;
+ writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
+ reg &= ~ENHANCED;
+ writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
+ }
+}
+
+void analogix_dp_set_training_pattern(struct analogix_dp_device *dp,
+ enum pattern_set pattern)
+{
+ u32 reg;
+
+ switch (pattern) {
+ case PRBS7:
+ reg = SCRAMBLING_ENABLE | LINK_QUAL_PATTERN_SET_PRBS7;
+ writel(reg, dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
+ break;
+ case D10_2:
+ reg = SCRAMBLING_ENABLE | LINK_QUAL_PATTERN_SET_D10_2;
+ writel(reg, dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
+ break;
+ case TRAINING_PTN1:
+ reg = SCRAMBLING_DISABLE | SW_TRAINING_PATTERN_SET_PTN1;
+ writel(reg, dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
+ break;
+ case TRAINING_PTN2:
+ reg = SCRAMBLING_DISABLE | SW_TRAINING_PATTERN_SET_PTN2;
+ writel(reg, dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
+ break;
+ case DP_NONE:
+ reg = SCRAMBLING_ENABLE |
+ LINK_QUAL_PATTERN_SET_DISABLE |
+ SW_TRAINING_PATTERN_SET_NORMAL;
+ writel(reg, dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
+ break;
+ default:
+ break;
+ }
+}
+
+void analogix_dp_set_lane0_pre_emphasis(struct analogix_dp_device *dp,
+ u32 level)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_LN0_LINK_TRAINING_CTL);
+ reg &= ~PRE_EMPHASIS_SET_MASK;
+ reg |= level << PRE_EMPHASIS_SET_SHIFT;
+ writel(reg, dp->reg_base + ANALOGIX_DP_LN0_LINK_TRAINING_CTL);
+}
+
+void analogix_dp_set_lane1_pre_emphasis(struct analogix_dp_device *dp,
+ u32 level)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_LN1_LINK_TRAINING_CTL);
+ reg &= ~PRE_EMPHASIS_SET_MASK;
+ reg |= level << PRE_EMPHASIS_SET_SHIFT;
+ writel(reg, dp->reg_base + ANALOGIX_DP_LN1_LINK_TRAINING_CTL);
+}
+
+void analogix_dp_set_lane2_pre_emphasis(struct analogix_dp_device *dp,
+ u32 level)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_LN2_LINK_TRAINING_CTL);
+ reg &= ~PRE_EMPHASIS_SET_MASK;
+ reg |= level << PRE_EMPHASIS_SET_SHIFT;
+ writel(reg, dp->reg_base + ANALOGIX_DP_LN2_LINK_TRAINING_CTL);
+}
+
+void analogix_dp_set_lane3_pre_emphasis(struct analogix_dp_device *dp,
+ u32 level)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_LN3_LINK_TRAINING_CTL);
+ reg &= ~PRE_EMPHASIS_SET_MASK;
+ reg |= level << PRE_EMPHASIS_SET_SHIFT;
+ writel(reg, dp->reg_base + ANALOGIX_DP_LN3_LINK_TRAINING_CTL);
+}
+
+void analogix_dp_set_lane0_link_training(struct analogix_dp_device *dp,
+ u32 training_lane)
+{
+ u32 reg;
+
+ reg = training_lane;
+ writel(reg, dp->reg_base + ANALOGIX_DP_LN0_LINK_TRAINING_CTL);
+}
+
+void analogix_dp_set_lane1_link_training(struct analogix_dp_device *dp,
+ u32 training_lane)
+{
+ u32 reg;
+
+ reg = training_lane;
+ writel(reg, dp->reg_base + ANALOGIX_DP_LN1_LINK_TRAINING_CTL);
+}
+
+void analogix_dp_set_lane2_link_training(struct analogix_dp_device *dp,
+ u32 training_lane)
+{
+ u32 reg;
+
+ reg = training_lane;
+ writel(reg, dp->reg_base + ANALOGIX_DP_LN2_LINK_TRAINING_CTL);
+}
+
+void analogix_dp_set_lane3_link_training(struct analogix_dp_device *dp,
+ u32 training_lane)
+{
+ u32 reg;
+
+ reg = training_lane;
+ writel(reg, dp->reg_base + ANALOGIX_DP_LN3_LINK_TRAINING_CTL);
+}
+
+u32 analogix_dp_get_lane0_link_training(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_LN0_LINK_TRAINING_CTL);
+ return reg;
+}
+
+u32 analogix_dp_get_lane1_link_training(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_LN1_LINK_TRAINING_CTL);
+ return reg;
+}
+
+u32 analogix_dp_get_lane2_link_training(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_LN2_LINK_TRAINING_CTL);
+ return reg;
+}
+
+u32 analogix_dp_get_lane3_link_training(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_LN3_LINK_TRAINING_CTL);
+ return reg;
+}
+
+void analogix_dp_reset_macro(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_TEST);
+ reg |= MACRO_RST;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_TEST);
+
+ /* 10 us is the minimum reset time. */
+ usleep_range(10, 20);
+
+ reg &= ~MACRO_RST;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_TEST);
+}
+
+void analogix_dp_init_video(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = VSYNC_DET | VID_FORMAT_CHG | VID_CLK_CHG;
+ writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_1);
+
+ reg = 0x0;
+ writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_1);
+
+ reg = CHA_CRI(4) | CHA_CTRL;
+ writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_2);
+
+ reg = 0x0;
+ writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
+
+ reg = VID_HRES_TH(2) | VID_VRES_TH(0);
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_8);
+}
+
+void analogix_dp_set_video_color_format(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ /* Configure the input color depth, color space, dynamic range */
+ reg = (dp->video_info->dynamic_range << IN_D_RANGE_SHIFT) |
+ (dp->video_info->color_depth << IN_BPC_SHIFT) |
+ (dp->video_info->color_space << IN_COLOR_F_SHIFT);
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_2);
+
+ /* Set Input Color YCbCr Coefficients to ITU601 or ITU709 */
+ reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_3);
+ reg &= ~IN_YC_COEFFI_MASK;
+ if (dp->video_info->ycbcr_coeff)
+ reg |= IN_YC_COEFFI_ITU709;
+ else
+ reg |= IN_YC_COEFFI_ITU601;
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_3);
+}
+
+int analogix_dp_is_slave_video_stream_clock_on(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_1);
+ writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_1);
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_1);
+
+ if (!(reg & DET_STA)) {
+ dev_dbg(dp->dev, "Input stream clock not detected.\n");
+ return -EINVAL;
+ }
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_2);
+ writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_2);
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_2);
+ dev_dbg(dp->dev, "wait SYS_CTL_2.\n");
+
+ if (reg & CHA_STA) {
+ dev_dbg(dp->dev, "Input stream clk is changing\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+void analogix_dp_set_video_cr_mn(struct analogix_dp_device *dp,
+ enum clock_recovery_m_value_type type,
+ u32 m_value, u32 n_value)
+{
+ u32 reg;
+
+ if (type == REGISTER_M) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
+ reg |= FIX_M_VID;
+ writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
+ reg = m_value & 0xff;
+ writel(reg, dp->reg_base + ANALOGIX_DP_M_VID_0);
+ reg = (m_value >> 8) & 0xff;
+ writel(reg, dp->reg_base + ANALOGIX_DP_M_VID_1);
+ reg = (m_value >> 16) & 0xff;
+ writel(reg, dp->reg_base + ANALOGIX_DP_M_VID_2);
+
+ reg = n_value & 0xff;
+ writel(reg, dp->reg_base + ANALOGIX_DP_N_VID_0);
+ reg = (n_value >> 8) & 0xff;
+ writel(reg, dp->reg_base + ANALOGIX_DP_N_VID_1);
+ reg = (n_value >> 16) & 0xff;
+ writel(reg, dp->reg_base + ANALOGIX_DP_N_VID_2);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
+ reg &= ~FIX_M_VID;
+ writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
+
+ writel(0x00, dp->reg_base + ANALOGIX_DP_N_VID_0);
+ writel(0x80, dp->reg_base + ANALOGIX_DP_N_VID_1);
+ writel(0x00, dp->reg_base + ANALOGIX_DP_N_VID_2);
+ }
+}
+
+void analogix_dp_set_video_timing_mode(struct analogix_dp_device *dp, u32 type)
+{
+ u32 reg;
+
+ if (type == VIDEO_TIMING_FROM_CAPTURE) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
+ reg &= ~FORMAT_SEL;
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
+ reg |= FORMAT_SEL;
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
+ }
+}
+
+void analogix_dp_enable_video_master(struct analogix_dp_device *dp, bool enable)
+{
+ u32 reg;
+
+ if (enable) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_SOC_GENERAL_CTL);
+ reg &= ~VIDEO_MODE_MASK;
+ reg |= VIDEO_MASTER_MODE_EN | VIDEO_MODE_MASTER_MODE;
+ writel(reg, dp->reg_base + ANALOGIX_DP_SOC_GENERAL_CTL);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_SOC_GENERAL_CTL);
+ reg &= ~VIDEO_MODE_MASK;
+ reg |= VIDEO_MODE_SLAVE_MODE;
+ writel(reg, dp->reg_base + ANALOGIX_DP_SOC_GENERAL_CTL);
+ }
+}
+
+void analogix_dp_start_video(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
+ reg |= VIDEO_EN;
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
+}
+
+int analogix_dp_is_video_stream_on(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
+ writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
+ if (!(reg & STRM_VALID)) {
+ dev_dbg(dp->dev, "Input video stream is not detected.\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+void analogix_dp_config_video_slave_mode(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_FUNC_EN_1);
+ reg &= ~(MASTER_VID_FUNC_EN_N | SLAVE_VID_FUNC_EN_N);
+ reg |= MASTER_VID_FUNC_EN_N;
+ writel(reg, dp->reg_base + ANALOGIX_DP_FUNC_EN_1);
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
+ reg &= ~INTERACE_SCAN_CFG;
+ reg |= (dp->video_info->interlaced << 2);
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
+ reg &= ~VSYNC_POLARITY_CFG;
+ reg |= (dp->video_info->v_sync_polarity << 1);
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
+ reg &= ~HSYNC_POLARITY_CFG;
+ reg |= (dp->video_info->h_sync_polarity << 0);
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
+
+ reg = AUDIO_MODE_SPDIF_MODE | VIDEO_MODE_SLAVE_MODE;
+ writel(reg, dp->reg_base + ANALOGIX_DP_SOC_GENERAL_CTL);
+}
+
+void analogix_dp_enable_scrambling(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
+ reg &= ~SCRAMBLING_DISABLE;
+ writel(reg, dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
+}
+
+void analogix_dp_disable_scrambling(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
+ reg |= SCRAMBLING_DISABLE;
+ writel(reg, dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
+}
diff --git a/drivers/gpu/drm/exynos/exynos_dp_reg.h b/drivers/gpu/drm/bridge/analogix_dp_reg.h
similarity index 63%
rename from drivers/gpu/drm/exynos/exynos_dp_reg.h
rename to drivers/gpu/drm/bridge/analogix_dp_reg.h
index 2e9bd0e..98153e2 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_reg.h
+++ b/drivers/gpu/drm/bridge/analogix_dp_reg.h
@@ -1,104 +1,106 @@
/*
- * Register definition file for Samsung DP driver
+ * Register definition file for Analogix Core DP driver
*
* Copyright (C) 2012 Samsung Electronics Co., Ltd.
+ * Copyright (C) FuZhou Rockchip Electronics Co., Ltd.
* Author: Jingoo Han <[email protected]>
+ * Yakir Yang <[email protected]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
-#ifndef _EXYNOS_DP_REG_H
-#define _EXYNOS_DP_REG_H
-
-#define EXYNOS_DP_TX_SW_RESET 0x14
-#define EXYNOS_DP_FUNC_EN_1 0x18
-#define EXYNOS_DP_FUNC_EN_2 0x1C
-#define EXYNOS_DP_VIDEO_CTL_1 0x20
-#define EXYNOS_DP_VIDEO_CTL_2 0x24
-#define EXYNOS_DP_VIDEO_CTL_3 0x28
-
-#define EXYNOS_DP_VIDEO_CTL_8 0x3C
-#define EXYNOS_DP_VIDEO_CTL_10 0x44
-
-#define EXYNOS_DP_LANE_MAP 0x35C
-
-#define EXYNOS_DP_ANALOG_CTL_1 0x370
-#define EXYNOS_DP_ANALOG_CTL_2 0x374
-#define EXYNOS_DP_ANALOG_CTL_3 0x378
-#define EXYNOS_DP_PLL_FILTER_CTL_1 0x37C
-#define EXYNOS_DP_TX_AMP_TUNING_CTL 0x380
-
-#define EXYNOS_DP_AUX_HW_RETRY_CTL 0x390
-
-#define EXYNOS_DP_COMMON_INT_STA_1 0x3C4
-#define EXYNOS_DP_COMMON_INT_STA_2 0x3C8
-#define EXYNOS_DP_COMMON_INT_STA_3 0x3CC
-#define EXYNOS_DP_COMMON_INT_STA_4 0x3D0
-#define EXYNOS_DP_INT_STA 0x3DC
-#define EXYNOS_DP_COMMON_INT_MASK_1 0x3E0
-#define EXYNOS_DP_COMMON_INT_MASK_2 0x3E4
-#define EXYNOS_DP_COMMON_INT_MASK_3 0x3E8
-#define EXYNOS_DP_COMMON_INT_MASK_4 0x3EC
-#define EXYNOS_DP_INT_STA_MASK 0x3F8
-#define EXYNOS_DP_INT_CTL 0x3FC
-
-#define EXYNOS_DP_SYS_CTL_1 0x600
-#define EXYNOS_DP_SYS_CTL_2 0x604
-#define EXYNOS_DP_SYS_CTL_3 0x608
-#define EXYNOS_DP_SYS_CTL_4 0x60C
-
-#define EXYNOS_DP_PKT_SEND_CTL 0x640
-#define EXYNOS_DP_HDCP_CTL 0x648
-
-#define EXYNOS_DP_LINK_BW_SET 0x680
-#define EXYNOS_DP_LANE_COUNT_SET 0x684
-#define EXYNOS_DP_TRAINING_PTN_SET 0x688
-#define EXYNOS_DP_LN0_LINK_TRAINING_CTL 0x68C
-#define EXYNOS_DP_LN1_LINK_TRAINING_CTL 0x690
-#define EXYNOS_DP_LN2_LINK_TRAINING_CTL 0x694
-#define EXYNOS_DP_LN3_LINK_TRAINING_CTL 0x698
-
-#define EXYNOS_DP_DEBUG_CTL 0x6C0
-#define EXYNOS_DP_HPD_DEGLITCH_L 0x6C4
-#define EXYNOS_DP_HPD_DEGLITCH_H 0x6C8
-#define EXYNOS_DP_LINK_DEBUG_CTL 0x6E0
-
-#define EXYNOS_DP_M_VID_0 0x700
-#define EXYNOS_DP_M_VID_1 0x704
-#define EXYNOS_DP_M_VID_2 0x708
-#define EXYNOS_DP_N_VID_0 0x70C
-#define EXYNOS_DP_N_VID_1 0x710
-#define EXYNOS_DP_N_VID_2 0x714
-
-#define EXYNOS_DP_PLL_CTL 0x71C
-#define EXYNOS_DP_PHY_PD 0x720
-#define EXYNOS_DP_PHY_TEST 0x724
-
-#define EXYNOS_DP_VIDEO_FIFO_THRD 0x730
-#define EXYNOS_DP_AUDIO_MARGIN 0x73C
-
-#define EXYNOS_DP_M_VID_GEN_FILTER_TH 0x764
-#define EXYNOS_DP_M_AUD_GEN_FILTER_TH 0x778
-#define EXYNOS_DP_AUX_CH_STA 0x780
-#define EXYNOS_DP_AUX_CH_DEFER_CTL 0x788
-#define EXYNOS_DP_AUX_RX_COMM 0x78C
-#define EXYNOS_DP_BUFFER_DATA_CTL 0x790
-#define EXYNOS_DP_AUX_CH_CTL_1 0x794
-#define EXYNOS_DP_AUX_ADDR_7_0 0x798
-#define EXYNOS_DP_AUX_ADDR_15_8 0x79C
-#define EXYNOS_DP_AUX_ADDR_19_16 0x7A0
-#define EXYNOS_DP_AUX_CH_CTL_2 0x7A4
-
-#define EXYNOS_DP_BUF_DATA_0 0x7C0
-
-#define EXYNOS_DP_SOC_GENERAL_CTL 0x800
-
-/* EXYNOS_DP_TX_SW_RESET */
+#ifndef _ANALOGIX_DP_REG_H
+#define _ANALOGIX_DP_REG_H
+
+#define ANALOGIX_DP_TX_SW_RESET 0x14
+#define ANALOGIX_DP_FUNC_EN_1 0x18
+#define ANALOGIX_DP_FUNC_EN_2 0x1C
+#define ANALOGIX_DP_VIDEO_CTL_1 0x20
+#define ANALOGIX_DP_VIDEO_CTL_2 0x24
+#define ANALOGIX_DP_VIDEO_CTL_3 0x28
+
+#define ANALOGIX_DP_VIDEO_CTL_8 0x3C
+#define ANALOGIX_DP_VIDEO_CTL_10 0x44
+
+#define ANALOGIX_DP_LANE_MAP 0x35C
+
+#define ANALOGIX_DP_ANALOG_CTL_1 0x370
+#define ANALOGIX_DP_ANALOG_CTL_2 0x374
+#define ANALOGIX_DP_ANALOG_CTL_3 0x378
+#define ANALOGIX_DP_PLL_FILTER_CTL_1 0x37C
+#define ANALOGIX_DP_TX_AMP_TUNING_CTL 0x380
+
+#define ANALOGIX_DP_AUX_HW_RETRY_CTL 0x390
+
+#define ANALOGIX_DP_COMMON_INT_STA_1 0x3C4
+#define ANALOGIX_DP_COMMON_INT_STA_2 0x3C8
+#define ANALOGIX_DP_COMMON_INT_STA_3 0x3CC
+#define ANALOGIX_DP_COMMON_INT_STA_4 0x3D0
+#define ANALOGIX_DP_INT_STA 0x3DC
+#define ANALOGIX_DP_COMMON_INT_MASK_1 0x3E0
+#define ANALOGIX_DP_COMMON_INT_MASK_2 0x3E4
+#define ANALOGIX_DP_COMMON_INT_MASK_3 0x3E8
+#define ANALOGIX_DP_COMMON_INT_MASK_4 0x3EC
+#define ANALOGIX_DP_INT_STA_MASK 0x3F8
+#define ANALOGIX_DP_INT_CTL 0x3FC
+
+#define ANALOGIX_DP_SYS_CTL_1 0x600
+#define ANALOGIX_DP_SYS_CTL_2 0x604
+#define ANALOGIX_DP_SYS_CTL_3 0x608
+#define ANALOGIX_DP_SYS_CTL_4 0x60C
+
+#define ANALOGIX_DP_PKT_SEND_CTL 0x640
+#define ANALOGIX_DP_HDCP_CTL 0x648
+
+#define ANALOGIX_DP_LINK_BW_SET 0x680
+#define ANALOGIX_DP_LANE_COUNT_SET 0x684
+#define ANALOGIX_DP_TRAINING_PTN_SET 0x688
+#define ANALOGIX_DP_LN0_LINK_TRAINING_CTL 0x68C
+#define ANALOGIX_DP_LN1_LINK_TRAINING_CTL 0x690
+#define ANALOGIX_DP_LN2_LINK_TRAINING_CTL 0x694
+#define ANALOGIX_DP_LN3_LINK_TRAINING_CTL 0x698
+
+#define ANALOGIX_DP_DEBUG_CTL 0x6C0
+#define ANALOGIX_DP_HPD_DEGLITCH_L 0x6C4
+#define ANALOGIX_DP_HPD_DEGLITCH_H 0x6C8
+#define ANALOGIX_DP_LINK_DEBUG_CTL 0x6E0
+
+#define ANALOGIX_DP_M_VID_0 0x700
+#define ANALOGIX_DP_M_VID_1 0x704
+#define ANALOGIX_DP_M_VID_2 0x708
+#define ANALOGIX_DP_N_VID_0 0x70C
+#define ANALOGIX_DP_N_VID_1 0x710
+#define ANALOGIX_DP_N_VID_2 0x714
+
+#define ANALOGIX_DP_PLL_CTL 0x71C
+#define ANALOGIX_DP_PHY_PD 0x720
+#define ANALOGIX_DP_PHY_TEST 0x724
+
+#define ANALOGIX_DP_VIDEO_FIFO_THRD 0x730
+#define ANALOGIX_DP_AUDIO_MARGIN 0x73C
+
+#define ANALOGIX_DP_M_VID_GEN_FILTER_TH 0x764
+#define ANALOGIX_DP_M_AUD_GEN_FILTER_TH 0x778
+#define ANALOGIX_DP_AUX_CH_STA 0x780
+#define ANALOGIX_DP_AUX_CH_DEFER_CTL 0x788
+#define ANALOGIX_DP_AUX_RX_COMM 0x78C
+#define ANALOGIX_DP_BUFFER_DATA_CTL 0x790
+#define ANALOGIX_DP_AUX_CH_CTL_1 0x794
+#define ANALOGIX_DP_AUX_ADDR_7_0 0x798
+#define ANALOGIX_DP_AUX_ADDR_15_8 0x79C
+#define ANALOGIX_DP_AUX_ADDR_19_16 0x7A0
+#define ANALOGIX_DP_AUX_CH_CTL_2 0x7A4
+
+#define ANALOGIX_DP_BUF_DATA_0 0x7C0
+
+#define ANALOGIX_DP_SOC_GENERAL_CTL 0x800
+
+/* ANALOGIX_DP_TX_SW_RESET */
#define RESET_DP_TX (0x1 << 0)
-/* EXYNOS_DP_FUNC_EN_1 */
+/* ANALOGIX_DP_FUNC_EN_1 */
#define MASTER_VID_FUNC_EN_N (0x1 << 7)
#define SLAVE_VID_FUNC_EN_N (0x1 << 5)
#define AUD_FIFO_FUNC_EN_N (0x1 << 4)
@@ -107,17 +109,17 @@
#define CRC_FUNC_EN_N (0x1 << 1)
#define SW_FUNC_EN_N (0x1 << 0)
-/* EXYNOS_DP_FUNC_EN_2 */
+/* ANALOGIX_DP_FUNC_EN_2 */
#define SSC_FUNC_EN_N (0x1 << 7)
#define AUX_FUNC_EN_N (0x1 << 2)
#define SERDES_FIFO_FUNC_EN_N (0x1 << 1)
#define LS_CLK_DOMAIN_FUNC_EN_N (0x1 << 0)
-/* EXYNOS_DP_VIDEO_CTL_1 */
+/* ANALOGIX_DP_VIDEO_CTL_1 */
#define VIDEO_EN (0x1 << 7)
#define HDCP_VIDEO_MUTE (0x1 << 6)
-/* EXYNOS_DP_VIDEO_CTL_1 */
+/* ANALOGIX_DP_VIDEO_CTL_1 */
#define IN_D_RANGE_MASK (0x1 << 7)
#define IN_D_RANGE_SHIFT (7)
#define IN_D_RANGE_CEA (0x1 << 7)
@@ -134,7 +136,7 @@
#define IN_COLOR_F_YCBCR422 (0x1 << 0)
#define IN_COLOR_F_RGB (0x0 << 0)
-/* EXYNOS_DP_VIDEO_CTL_3 */
+/* ANALOGIX_DP_VIDEO_CTL_3 */
#define IN_YC_COEFFI_MASK (0x1 << 7)
#define IN_YC_COEFFI_SHIFT (7)
#define IN_YC_COEFFI_ITU709 (0x1 << 7)
@@ -144,17 +146,17 @@
#define VID_CHK_UPDATE_TYPE_1 (0x1 << 4)
#define VID_CHK_UPDATE_TYPE_0 (0x0 << 4)
-/* EXYNOS_DP_VIDEO_CTL_8 */
+/* ANALOGIX_DP_VIDEO_CTL_8 */
#define VID_HRES_TH(x) (((x) & 0xf) << 4)
#define VID_VRES_TH(x) (((x) & 0xf) << 0)
-/* EXYNOS_DP_VIDEO_CTL_10 */
+/* ANALOGIX_DP_VIDEO_CTL_10 */
#define FORMAT_SEL (0x1 << 4)
#define INTERACE_SCAN_CFG (0x1 << 2)
#define VSYNC_POLARITY_CFG (0x1 << 1)
#define HSYNC_POLARITY_CFG (0x1 << 0)
-/* EXYNOS_DP_LANE_MAP */
+/* ANALOGIX_DP_LANE_MAP */
#define LANE3_MAP_LOGIC_LANE_0 (0x0 << 6)
#define LANE3_MAP_LOGIC_LANE_1 (0x1 << 6)
#define LANE3_MAP_LOGIC_LANE_2 (0x2 << 6)
@@ -172,30 +174,30 @@
#define LANE0_MAP_LOGIC_LANE_2 (0x2 << 0)
#define LANE0_MAP_LOGIC_LANE_3 (0x3 << 0)
-/* EXYNOS_DP_ANALOG_CTL_1 */
+/* ANALOGIX_DP_ANALOG_CTL_1 */
#define TX_TERMINAL_CTRL_50_OHM (0x1 << 4)
-/* EXYNOS_DP_ANALOG_CTL_2 */
+/* ANALOGIX_DP_ANALOG_CTL_2 */
#define SEL_24M (0x1 << 3)
#define TX_DVDD_BIT_1_0625V (0x4 << 0)
-/* EXYNOS_DP_ANALOG_CTL_3 */
+/* ANALOGIX_DP_ANALOG_CTL_3 */
#define DRIVE_DVDD_BIT_1_0625V (0x4 << 5)
#define VCO_BIT_600_MICRO (0x5 << 0)
-/* EXYNOS_DP_PLL_FILTER_CTL_1 */
+/* ANALOGIX_DP_PLL_FILTER_CTL_1 */
#define PD_RING_OSC (0x1 << 6)
#define AUX_TERMINAL_CTRL_50_OHM (0x2 << 4)
#define TX_CUR1_2X (0x1 << 2)
#define TX_CUR_16_MA (0x3 << 0)
-/* EXYNOS_DP_TX_AMP_TUNING_CTL */
+/* ANALOGIX_DP_TX_AMP_TUNING_CTL */
#define CH3_AMP_400_MV (0x0 << 24)
#define CH2_AMP_400_MV (0x0 << 16)
#define CH1_AMP_400_MV (0x0 << 8)
#define CH0_AMP_400_MV (0x0 << 0)
-/* EXYNOS_DP_AUX_HW_RETRY_CTL */
+/* ANALOGIX_DP_AUX_HW_RETRY_CTL */
#define AUX_BIT_PERIOD_EXPECTED_DELAY(x) (((x) & 0x7) << 8)
#define AUX_HW_RETRY_INTERVAL_MASK (0x3 << 3)
#define AUX_HW_RETRY_INTERVAL_600_MICROSECONDS (0x0 << 3)
@@ -204,7 +206,7 @@
#define AUX_HW_RETRY_INTERVAL_1800_MICROSECONDS (0x3 << 3)
#define AUX_HW_RETRY_COUNT_SEL(x) (((x) & 0x7) << 0)
-/* EXYNOS_DP_COMMON_INT_STA_1 */
+/* ANALOGIX_DP_COMMON_INT_STA_1 */
#define VSYNC_DET (0x1 << 7)
#define PLL_LOCK_CHG (0x1 << 6)
#define SPDIF_ERR (0x1 << 5)
@@ -214,19 +216,19 @@
#define VID_CLK_CHG (0x1 << 1)
#define SW_INT (0x1 << 0)
-/* EXYNOS_DP_COMMON_INT_STA_2 */
+/* ANALOGIX_DP_COMMON_INT_STA_2 */
#define ENC_EN_CHG (0x1 << 6)
#define HW_BKSV_RDY (0x1 << 3)
#define HW_SHA_DONE (0x1 << 2)
#define HW_AUTH_STATE_CHG (0x1 << 1)
#define HW_AUTH_DONE (0x1 << 0)
-/* EXYNOS_DP_COMMON_INT_STA_3 */
+/* ANALOGIX_DP_COMMON_INT_STA_3 */
#define AFIFO_UNDER (0x1 << 7)
#define AFIFO_OVER (0x1 << 6)
#define R0_CHK_FLAG (0x1 << 5)
-/* EXYNOS_DP_COMMON_INT_STA_4 */
+/* ANALOGIX_DP_COMMON_INT_STA_4 */
#define PSR_ACTIVE (0x1 << 7)
#define PSR_INACTIVE (0x1 << 6)
#define SPDIF_BI_PHASE_ERR (0x1 << 5)
@@ -234,29 +236,29 @@
#define HPD_LOST (0x1 << 1)
#define PLUG (0x1 << 0)
-/* EXYNOS_DP_INT_STA */
+/* ANALOGIX_DP_INT_STA */
#define INT_HPD (0x1 << 6)
#define HW_TRAINING_FINISH (0x1 << 5)
#define RPLY_RECEIV (0x1 << 1)
#define AUX_ERR (0x1 << 0)
-/* EXYNOS_DP_INT_CTL */
+/* ANALOGIX_DP_INT_CTL */
#define SOFT_INT_CTRL (0x1 << 2)
#define INT_POL1 (0x1 << 1)
#define INT_POL0 (0x1 << 0)
-/* EXYNOS_DP_SYS_CTL_1 */
+/* ANALOGIX_DP_SYS_CTL_1 */
#define DET_STA (0x1 << 2)
#define FORCE_DET (0x1 << 1)
#define DET_CTRL (0x1 << 0)
-/* EXYNOS_DP_SYS_CTL_2 */
+/* ANALOGIX_DP_SYS_CTL_2 */
#define CHA_CRI(x) (((x) & 0xf) << 4)
#define CHA_STA (0x1 << 2)
#define FORCE_CHA (0x1 << 1)
#define CHA_CTRL (0x1 << 0)
-/* EXYNOS_DP_SYS_CTL_3 */
+/* ANALOGIX_DP_SYS_CTL_3 */
#define HPD_STATUS (0x1 << 6)
#define F_HPD (0x1 << 5)
#define HPD_CTRL (0x1 << 4)
@@ -265,13 +267,13 @@
#define F_VALID (0x1 << 1)
#define VALID_CTRL (0x1 << 0)
-/* EXYNOS_DP_SYS_CTL_4 */
+/* ANALOGIX_DP_SYS_CTL_4 */
#define FIX_M_AUD (0x1 << 4)
#define ENHANCED (0x1 << 3)
#define FIX_M_VID (0x1 << 2)
#define M_VID_UPDATE_CTRL (0x3 << 0)
-/* EXYNOS_DP_TRAINING_PTN_SET */
+/* ANALOGIX_DP_TRAINING_PTN_SET */
#define SCRAMBLER_TYPE (0x1 << 9)
#define HW_LINK_TRAINING_PATTERN (0x1 << 8)
#define SCRAMBLING_DISABLE (0x1 << 5)
@@ -285,24 +287,24 @@
#define SW_TRAINING_PATTERN_SET_PTN1 (0x1 << 0)
#define SW_TRAINING_PATTERN_SET_NORMAL (0x0 << 0)
-/* EXYNOS_DP_LN0_LINK_TRAINING_CTL */
+/* ANALOGIX_DP_LN0_LINK_TRAINING_CTL */
#define PRE_EMPHASIS_SET_MASK (0x3 << 3)
#define PRE_EMPHASIS_SET_SHIFT (3)
-/* EXYNOS_DP_DEBUG_CTL */
+/* ANALOGIX_DP_DEBUG_CTL */
#define PLL_LOCK (0x1 << 4)
#define F_PLL_LOCK (0x1 << 3)
#define PLL_LOCK_CTRL (0x1 << 2)
#define PN_INV (0x1 << 0)
-/* EXYNOS_DP_PLL_CTL */
+/* ANALOGIX_DP_PLL_CTL */
#define DP_PLL_PD (0x1 << 7)
#define DP_PLL_RESET (0x1 << 6)
#define DP_PLL_LOOP_BIT_DEFAULT (0x1 << 4)
#define DP_PLL_REF_BIT_1_1250V (0x5 << 0)
#define DP_PLL_REF_BIT_1_2500V (0x7 << 0)
-/* EXYNOS_DP_PHY_PD */
+/* ANALOGIX_DP_PHY_PD */
#define DP_PHY_PD (0x1 << 5)
#define AUX_PD (0x1 << 4)
#define CH3_PD (0x1 << 3)
@@ -310,28 +312,28 @@
#define CH1_PD (0x1 << 1)
#define CH0_PD (0x1 << 0)
-/* EXYNOS_DP_PHY_TEST */
+/* ANALOGIX_DP_PHY_TEST */
#define MACRO_RST (0x1 << 5)
#define CH1_TEST (0x1 << 1)
#define CH0_TEST (0x1 << 0)
-/* EXYNOS_DP_AUX_CH_STA */
+/* ANALOGIX_DP_AUX_CH_STA */
#define AUX_BUSY (0x1 << 4)
#define AUX_STATUS_MASK (0xf << 0)
-/* EXYNOS_DP_AUX_CH_DEFER_CTL */
+/* ANALOGIX_DP_AUX_CH_DEFER_CTL */
#define DEFER_CTRL_EN (0x1 << 7)
#define DEFER_COUNT(x) (((x) & 0x7f) << 0)
-/* EXYNOS_DP_AUX_RX_COMM */
+/* ANALOGIX_DP_AUX_RX_COMM */
#define AUX_RX_COMM_I2C_DEFER (0x2 << 2)
#define AUX_RX_COMM_AUX_DEFER (0x2 << 0)
-/* EXYNOS_DP_BUFFER_DATA_CTL */
+/* ANALOGIX_DP_BUFFER_DATA_CTL */
#define BUF_CLR (0x1 << 7)
#define BUF_DATA_COUNT(x) (((x) & 0x1f) << 0)
-/* EXYNOS_DP_AUX_CH_CTL_1 */
+/* ANALOGIX_DP_AUX_CH_CTL_1 */
#define AUX_LENGTH(x) (((x - 1) & 0xf) << 4)
#define AUX_TX_COMM_MASK (0xf << 0)
#define AUX_TX_COMM_DP_TRANSACTION (0x1 << 3)
@@ -340,20 +342,20 @@
#define AUX_TX_COMM_WRITE (0x0 << 0)
#define AUX_TX_COMM_READ (0x1 << 0)
-/* EXYNOS_DP_AUX_ADDR_7_0 */
+/* ANALOGIX_DP_AUX_ADDR_7_0 */
#define AUX_ADDR_7_0(x) (((x) >> 0) & 0xff)
-/* EXYNOS_DP_AUX_ADDR_15_8 */
+/* ANALOGIX_DP_AUX_ADDR_15_8 */
#define AUX_ADDR_15_8(x) (((x) >> 8) & 0xff)
-/* EXYNOS_DP_AUX_ADDR_19_16 */
+/* ANALOGIX_DP_AUX_ADDR_19_16 */
#define AUX_ADDR_19_16(x) (((x) >> 16) & 0x0f)
-/* EXYNOS_DP_AUX_CH_CTL_2 */
+/* ANALOGIX_DP_AUX_CH_CTL_2 */
#define ADDR_ONLY (0x1 << 1)
#define AUX_EN (0x1 << 0)
-/* EXYNOS_DP_SOC_GENERAL_CTL */
+/* ANALOGIX_DP_SOC_GENERAL_CTL */
#define AUDIO_MODE_SPDIF_MODE (0x1 << 8)
#define AUDIO_MODE_MASTER_MODE (0x0 << 8)
#define MASTER_VIDEO_INTERLACE_EN (0x1 << 4)
@@ -363,4 +365,4 @@
#define VIDEO_MODE_SLAVE_MODE (0x1 << 0)
#define VIDEO_MODE_MASTER_MODE (0x0 << 0)
-#endif /* _EXYNOS_DP_REG_H */
+#endif /* _ANALOGIX_DP_REG_H */
diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig
index 43003c4..b33549c 100644
--- a/drivers/gpu/drm/exynos/Kconfig
+++ b/drivers/gpu/drm/exynos/Kconfig
@@ -54,9 +54,10 @@ config DRM_EXYNOS_DSI
help
This enables support for Exynos MIPI-DSI device.
-config DRM_EXYNOS_DP
- bool "EXYNOS DRM DP driver support"
+config DRM_EXYNOS_ANALOGIX_DP
+ bool "EXYNOS specific extensions for Analogix DP driver"
depends on DRM_EXYNOS && (DRM_EXYNOS_FIMD || DRM_EXYNOS7_DECON) && (DRM_PTN3460=n || DRM_PTN3460=y || DRM_PTN3460=DRM_EXYNOS)
+ select DRM_ANALOGIX_DP
default DRM_EXYNOS
select DRM_PANEL
help
diff --git a/drivers/gpu/drm/exynos/Makefile b/drivers/gpu/drm/exynos/Makefile
index 7de0b10..cda4d26 100644
--- a/drivers/gpu/drm/exynos/Makefile
+++ b/drivers/gpu/drm/exynos/Makefile
@@ -14,7 +14,7 @@ exynosdrm-$(CONFIG_DRM_EXYNOS5433_DECON) += exynos5433_drm_decon.o
exynosdrm-$(CONFIG_DRM_EXYNOS7_DECON) += exynos7_drm_decon.o
exynosdrm-$(CONFIG_DRM_EXYNOS_DPI) += exynos_drm_dpi.o
exynosdrm-$(CONFIG_DRM_EXYNOS_DSI) += exynos_drm_dsi.o
-exynosdrm-$(CONFIG_DRM_EXYNOS_DP) += exynos_dp_core.o exynos_dp_reg.o
+exynosdrm-$(CONFIG_DRM_EXYNOS_ANALOGIX_DP) += analogix_dp-exynos.o
exynosdrm-$(CONFIG_DRM_EXYNOS_HDMI) += exynos_hdmi.o exynos_mixer.o
exynosdrm-$(CONFIG_DRM_EXYNOS_VIDI) += exynos_drm_vidi.o
exynosdrm-$(CONFIG_DRM_EXYNOS_G2D) += exynos_drm_g2d.o
diff --git a/drivers/gpu/drm/exynos/analogix_dp-exynos.c b/drivers/gpu/drm/exynos/analogix_dp-exynos.c
new file mode 100644
index 0000000..b8d09d4
--- /dev/null
+++ b/drivers/gpu/drm/exynos/analogix_dp-exynos.c
@@ -0,0 +1,240 @@
+/*
+ * Samsung SoC DP (Display Port) interface driver.
+ *
+ * Copyright (C) 2012 Samsung Electronics Co., Ltd.
+ * Copyright (C) FuZhou Rockchip Electronics Co., Ltd.
+ * Author: Jingoo Han <[email protected]>
+ * Yakir Yang <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/component.h>
+
+#include <drm/drmP.h>
+#include <drm/drm_panel.h>
+#include <drm/bridge/ptn3460.h>
+
+#include <drm/exynos_drm.h>
+#include "exynos_drm_drv.h"
+
+#define plat_data_to_dp(pd) \
+ container_of(pd, struct exynos_dp_device, plat_data)
+
+struct exynos_dp_device {
+ struct exynos_drm_display display;
+ struct drm_bridge *ptn_bridge;
+ struct drm_device *drm_dev;
+ struct device *dev;
+
+ struct analogix_dp_plat_data plat_data;
+};
+
+int exynos_dp_crtc_clock_enable(struct analogix_dp_plat_data *plat_data,
+ bool enable)
+{
+ struct exynos_dp_device *dp = plat_data_to_dp(plat_data);
+ struct drm_encoder *encoder = dp->display.encoder;
+ struct exynos_drm_crtc *crtc;
+
+ if (!encoder)
+ return -1;
+
+ crtc = to_exynos_crtc(encoder->crtc);
+ if (crtc && crtc->ops && crtc->ops->clock_enable)
+ crtc->ops->clock_enable(crtc, enable);
+
+ return 0;
+}
+
+static int exynos_dp_poweron(struct analogix_dp_plat_data *plat_data)
+{
+ exynos_dp_crtc_clock_enable(plat_data, true);
+}
+
+static int exynos_dp_poweroff(struct analogix_dp_plat_data *plat_data)
+{
+ exynos_dp_crtc_clock_enable(plat_data, false);
+}
+
+static int exynos_dp_bridge_attach(struct analogix_dp_plat_data *plat_data,
+ struct drm_bridge *bridge)
+{
+ struct exynos_dp_device *dp = plat_data_to_dp(plat_data);
+ struct drm_encoder *encoder = dp->display.encoder;
+ int ret;
+
+ /* Pre-empt DP connector creation if there's a bridge */
+ if (dp->ptn_bridge) {
+ dp->bridge->next = dp->ptn_bridge;
+ dp->bridge->encoder = encoder;
+ ret = drm_bridge_attach(encoder->dev, dp->bridge);
+ if (ret) {
+ DRM_ERROR("Failed to attach bridge to drm\n");
+ bridge->next = NULL;
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static void exynos_dp_dpms(struct exynos_drm_display *display, int mode)
+{
+ /* do nothing */
+}
+
+static int exynos_dp_create_connector(struct exynos_drm_display *display,
+ struct drm_encoder *encoder)
+{
+ /* do nothing */
+ return 0;
+}
+
+static void exynos_dp_commit(struct exynos_drm_display *display)
+{
+ /* do nothing */
+}
+
+static struct exynos_drm_display_ops exynos_dp_display_ops = {
+ .create_connector = exynos_dp_create_connector,
+ .dpms = exynos_dp_dpms,
+ .commit = exynos_dp_commit,
+};
+
+static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
+{
+ struct exynos_dp_device *dp = dev_get_drvdata(dev);
+ struct drm_device *drm_dev = data;
+ int ret;
+
+ /*
+ * Just like the probe function said, we don't need the
+ * device drvrate anymore, we should leave the charge to
+ * analogix dp driver, set the device drvdata to NULL.
+ */
+ dev_set_drvdata(dev, NULL);
+
+ dp->dev = dev;
+ dp->drm_dev = drm_dev;
+
+ dp->plat_data.power_on = exynos_dp_poweron;
+ dp->plat_data.power_off = exynos_dp_poweroff;
+ dp->plat_data.attach = exynos_dp_bridge_attach;
+
+ ret = exynos_drm_create_enc_conn(dp->drm_dev, &dp->display);
+ if (ret) {
+ DRM_ERROR("exynos dp create enc_conn failed\n");
+ return ret;
+ }
+
+ return analogix_dp_bind(dev, dp->drm_dev, dp->display.encoder,
+ &dp->plat_data);
+}
+
+static void exynos_dp_unbind(struct device *dev, struct device *master,
+ void *data)
+{
+ return analogix_dp_unbind(dev, master, data);
+}
+
+static const struct component_ops exynos_dp_ops = {
+ .bind = exynos_dp_bind,
+ .unbind = exynos_dp_unbind,
+};
+
+static int exynos_dp_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *panel_node, *bridge_node, *endpoint;
+ struct exynos_dp_device *dp;
+
+ dp = devm_kzalloc(&pdev->dev, sizeof(struct exynos_dp_device),
+ GFP_KERNEL);
+ if (!dp)
+ return -ENOMEM;
+
+ /*
+ * We just use the drvdata until driver run into component
+ * add function, and then we would set drvdata to null, so
+ * that analogix dp driver would take charge of the drvdata.
+ */
+ platform_set_drvdata(pdev, dp);
+
+ dp->display.type = EXYNOS_DISPLAY_TYPE_LCD;
+ dp->display.ops = &exynos_dp_display_ops;
+
+ panel_node = of_parse_phandle(dev->of_node, "panel", 0);
+ if (panel_node) {
+ dp->panel = of_drm_find_panel(panel_node);
+ of_node_put(panel_node);
+ if (!dp->panel)
+ return -EPROBE_DEFER;
+ }
+
+ endpoint = of_graph_get_next_endpoint(dev->of_node, NULL);
+ if (endpoint) {
+ bridge_node = of_graph_get_remote_port_parent(endpoint);
+ if (bridge_node) {
+ dp->ptn_bridge = of_drm_find_bridge(bridge_node);
+ of_node_put(bridge_node);
+ if (!dp->ptn_bridge)
+ return -EPROBE_DEFER;
+ } else {
+ return -EPROBE_DEFER;
+ }
+ }
+
+ return component_add(&pdev->dev, &exynos_dp_ops);
+}
+
+static int exynos_dp_remove(struct platform_device *pdev)
+{
+ component_del(&pdev->dev, &exynos_dp_ops);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int exynos_dp_suspend(struct device *dev)
+{
+ return analogix_dp_suspend(dev);
+}
+
+static int exynos_dp_resume(struct device *dev)
+{
+ return analogix_dp_resume(dev);
+}
+#endif
+
+static const struct dev_pm_ops exynos_dp_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(exynos_dp_suspend, exynos_dp_resume)
+};
+
+static const struct of_device_id exynos_dp_match[] = {
+ { .compatible = "samsung,exynos5-dp" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, exynos_dp_match);
+
+struct platform_driver dp_driver = {
+ .probe = exynos_dp_probe,
+ .remove = exynos_dp_remove,
+ .driver = {
+ .name = "exynos-dp",
+ .owner = THIS_MODULE,
+ .pm = &exynos_dp_pm_ops,
+ .of_match_table = exynos_dp_match,
+ },
+};
+
+MODULE_AUTHOR("Jingoo Han <[email protected]>");
+MODULE_AUTHOR("Yakir Yang <[email protected]>");
+MODULE_DESCRIPTION("Samsung Specific Analogix-DP Driver Extension");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.h b/drivers/gpu/drm/exynos/exynos_dp_core.h
deleted file mode 100644
index f2584b8..0000000
--- a/drivers/gpu/drm/exynos/exynos_dp_core.h
+++ /dev/null
@@ -1,283 +0,0 @@
-/*
- * Header file for Samsung DP (Display Port) interface driver.
- *
- * Copyright (C) 2012 Samsung Electronics Co., Ltd.
- * Author: Jingoo Han <[email protected]>
- * Yakir Yang <[email protected]>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#ifndef _EXYNOS_DP_CORE_H
-#define _EXYNOS_DP_CORE_H
-
-#include <drm/drm_crtc.h>
-#include <drm/drm_dp_helper.h>
-#include <drm/exynos_drm.h>
-
-#include "exynos_drm_drv.h"
-
-#define DP_TIMEOUT_LOOP_COUNT 100
-#define MAX_CR_LOOP 5
-#define MAX_EQ_LOOP 5
-
-enum link_rate_type {
- LINK_RATE_1_62GBPS = 0x06,
- LINK_RATE_2_70GBPS = 0x0a
-};
-
-enum link_lane_count_type {
- LANE_COUNT1 = 1,
- LANE_COUNT2 = 2,
- LANE_COUNT4 = 4
-};
-
-enum link_training_state {
- START,
- CLOCK_RECOVERY,
- EQUALIZER_TRAINING,
- FINISHED,
- FAILED
-};
-
-enum voltage_swing_level {
- VOLTAGE_LEVEL_0,
- VOLTAGE_LEVEL_1,
- VOLTAGE_LEVEL_2,
- VOLTAGE_LEVEL_3,
-};
-
-enum pre_emphasis_level {
- PRE_EMPHASIS_LEVEL_0,
- PRE_EMPHASIS_LEVEL_1,
- PRE_EMPHASIS_LEVEL_2,
- PRE_EMPHASIS_LEVEL_3,
-};
-
-enum pattern_set {
- PRBS7,
- D10_2,
- TRAINING_PTN1,
- TRAINING_PTN2,
- DP_NONE
-};
-
-enum color_space {
- COLOR_RGB,
- COLOR_YCBCR422,
- COLOR_YCBCR444
-};
-
-enum color_depth {
- COLOR_6,
- COLOR_8,
- COLOR_10,
- COLOR_12
-};
-
-enum color_coefficient {
- COLOR_YCBCR601,
- COLOR_YCBCR709
-};
-
-enum dynamic_range {
- VESA,
- CEA
-};
-
-enum pll_status {
- PLL_UNLOCKED,
- PLL_LOCKED
-};
-
-enum clock_recovery_m_value_type {
- CALCULATED_M,
- REGISTER_M
-};
-
-enum video_timing_recognition_type {
- VIDEO_TIMING_FROM_CAPTURE,
- VIDEO_TIMING_FROM_REGISTER
-};
-
-enum analog_power_block {
- AUX_BLOCK,
- CH0_BLOCK,
- CH1_BLOCK,
- CH2_BLOCK,
- CH3_BLOCK,
- ANALOG_TOTAL,
- POWER_ALL
-};
-
-enum dp_irq_type {
- DP_IRQ_TYPE_HP_CABLE_IN,
- DP_IRQ_TYPE_HP_CABLE_OUT,
- DP_IRQ_TYPE_HP_CHANGE,
- DP_IRQ_TYPE_UNKNOWN,
-};
-
-struct video_info {
- char *name;
-
- bool h_sync_polarity;
- bool v_sync_polarity;
- bool interlaced;
-
- enum color_space color_space;
- enum dynamic_range dynamic_range;
- enum color_coefficient ycbcr_coeff;
- enum color_depth color_depth;
-
- enum link_rate_type link_rate;
- enum link_lane_count_type lane_count;
-};
-
-struct link_train {
- int eq_loop;
- int cr_loop[4];
-
- u8 link_rate;
- u8 lane_count;
- u8 training_lane[4];
-
- enum link_training_state lt_state;
-};
-
-struct exynos_dp_device {
- struct exynos_drm_display display;
- struct device *dev;
- struct drm_device *drm_dev;
- struct drm_connector connector;
- struct drm_encoder *encoder;
- struct drm_panel *panel;
- struct drm_bridge *bridge;
- struct drm_bridge *ptn_bridge;
- struct clk *clock;
- unsigned int irq;
- void __iomem *reg_base;
-
- struct video_info *video_info;
- struct link_train link_train;
- struct work_struct hotplug_work;
- struct phy *phy;
- int dpms_mode;
- int hpd_gpio;
-
- struct exynos_drm_panel_info priv;
-};
-
-/* exynos_dp_reg.c */
-void exynos_dp_enable_video_mute(struct exynos_dp_device *dp, bool enable);
-void exynos_dp_stop_video(struct exynos_dp_device *dp);
-void exynos_dp_lane_swap(struct exynos_dp_device *dp, bool enable);
-void exynos_dp_init_analog_param(struct exynos_dp_device *dp);
-void exynos_dp_init_interrupt(struct exynos_dp_device *dp);
-void exynos_dp_reset(struct exynos_dp_device *dp);
-void exynos_dp_swreset(struct exynos_dp_device *dp);
-void exynos_dp_config_interrupt(struct exynos_dp_device *dp);
-enum pll_status exynos_dp_get_pll_lock_status(struct exynos_dp_device *dp);
-void exynos_dp_set_pll_power_down(struct exynos_dp_device *dp, bool enable);
-void exynos_dp_set_analog_power_down(struct exynos_dp_device *dp,
- enum analog_power_block block,
- bool enable);
-void exynos_dp_init_analog_func(struct exynos_dp_device *dp);
-void exynos_dp_init_hpd(struct exynos_dp_device *dp);
-enum dp_irq_type exynos_dp_get_irq_type(struct exynos_dp_device *dp);
-void exynos_dp_clear_hotplug_interrupts(struct exynos_dp_device *dp);
-void exynos_dp_reset_aux(struct exynos_dp_device *dp);
-void exynos_dp_init_aux(struct exynos_dp_device *dp);
-int exynos_dp_get_plug_in_status(struct exynos_dp_device *dp);
-void exynos_dp_enable_sw_function(struct exynos_dp_device *dp);
-int exynos_dp_start_aux_transaction(struct exynos_dp_device *dp);
-int exynos_dp_write_byte_to_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned char data);
-int exynos_dp_read_byte_from_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned char *data);
-int exynos_dp_write_bytes_to_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned int count,
- unsigned char data[]);
-int exynos_dp_read_bytes_from_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned int count,
- unsigned char data[]);
-int exynos_dp_select_i2c_device(struct exynos_dp_device *dp,
- unsigned int device_addr,
- unsigned int reg_addr);
-int exynos_dp_read_byte_from_i2c(struct exynos_dp_device *dp,
- unsigned int device_addr,
- unsigned int reg_addr,
- unsigned int *data);
-int exynos_dp_read_bytes_from_i2c(struct exynos_dp_device *dp,
- unsigned int device_addr,
- unsigned int reg_addr,
- unsigned int count,
- unsigned char edid[]);
-void exynos_dp_set_link_bandwidth(struct exynos_dp_device *dp, u32 bwtype);
-void exynos_dp_get_link_bandwidth(struct exynos_dp_device *dp, u32 *bwtype);
-void exynos_dp_set_lane_count(struct exynos_dp_device *dp, u32 count);
-void exynos_dp_get_lane_count(struct exynos_dp_device *dp, u32 *count);
-void exynos_dp_enable_enhanced_mode(struct exynos_dp_device *dp, bool enable);
-void exynos_dp_set_training_pattern(struct exynos_dp_device *dp,
- enum pattern_set pattern);
-void exynos_dp_set_lane0_pre_emphasis(struct exynos_dp_device *dp, u32 level);
-void exynos_dp_set_lane1_pre_emphasis(struct exynos_dp_device *dp, u32 level);
-void exynos_dp_set_lane2_pre_emphasis(struct exynos_dp_device *dp, u32 level);
-void exynos_dp_set_lane3_pre_emphasis(struct exynos_dp_device *dp, u32 level);
-void exynos_dp_set_lane0_link_training(struct exynos_dp_device *dp,
- u32 training_lane);
-void exynos_dp_set_lane1_link_training(struct exynos_dp_device *dp,
- u32 training_lane);
-void exynos_dp_set_lane2_link_training(struct exynos_dp_device *dp,
- u32 training_lane);
-void exynos_dp_set_lane3_link_training(struct exynos_dp_device *dp,
- u32 training_lane);
-u32 exynos_dp_get_lane0_link_training(struct exynos_dp_device *dp);
-u32 exynos_dp_get_lane1_link_training(struct exynos_dp_device *dp);
-u32 exynos_dp_get_lane2_link_training(struct exynos_dp_device *dp);
-u32 exynos_dp_get_lane3_link_training(struct exynos_dp_device *dp);
-void exynos_dp_reset_macro(struct exynos_dp_device *dp);
-void exynos_dp_init_video(struct exynos_dp_device *dp);
-
-void exynos_dp_set_video_color_format(struct exynos_dp_device *dp);
-int exynos_dp_is_slave_video_stream_clock_on(struct exynos_dp_device *dp);
-void exynos_dp_set_video_cr_mn(struct exynos_dp_device *dp,
- enum clock_recovery_m_value_type type,
- u32 m_value, u32 n_value);
-void exynos_dp_set_video_timing_mode(struct exynos_dp_device *dp, u32 type);
-void exynos_dp_enable_video_master(struct exynos_dp_device *dp, bool enable);
-void exynos_dp_start_video(struct exynos_dp_device *dp);
-int exynos_dp_is_video_stream_on(struct exynos_dp_device *dp);
-void exynos_dp_config_video_slave_mode(struct exynos_dp_device *dp);
-void exynos_dp_enable_scrambling(struct exynos_dp_device *dp);
-void exynos_dp_disable_scrambling(struct exynos_dp_device *dp);
-
-/* I2C EDID Chip ID, Slave Address */
-#define I2C_EDID_DEVICE_ADDR 0x50
-#define I2C_E_EDID_DEVICE_ADDR 0x30
-
-#define EDID_BLOCK_LENGTH 0x80
-#define EDID_HEADER_PATTERN 0x00
-#define EDID_EXTENSION_FLAG 0x7e
-#define EDID_CHECKSUM 0x7f
-
-/* DP_MAX_LANE_COUNT */
-#define DPCD_ENHANCED_FRAME_CAP(x) (((x) >> 7) & 0x1)
-#define DPCD_MAX_LANE_COUNT(x) ((x) & 0x1f)
-
-/* DP_LANE_COUNT_SET */
-#define DPCD_LANE_COUNT_SET(x) ((x) & 0x1f)
-
-/* DP_TRAINING_LANE0_SET */
-#define DPCD_PRE_EMPHASIS_SET(x) (((x) & 0x3) << 3)
-#define DPCD_PRE_EMPHASIS_GET(x) (((x) >> 3) & 0x3)
-#define DPCD_VOLTAGE_SWING_SET(x) (((x) & 0x3) << 0)
-#define DPCD_VOLTAGE_SWING_GET(x) (((x) >> 0) & 0x3)
-
-#endif /* _EXYNOS_DP_CORE_H */
diff --git a/include/drm/bridge/analogix_dp.h b/include/drm/bridge/analogix_dp.h
new file mode 100644
index 0000000..9a207f8
--- /dev/null
+++ b/include/drm/bridge/analogix_dp.h
@@ -0,0 +1,22 @@
+#ifndef _ANALOGIX_DP_H_
+#define _ANALOGIX_DP_H_
+
+#include <drm/drm_crtc.h>
+
+struct analogix_dp_plat_data {
+ struct drm_panel *panel;
+
+ int (*power_on)(struct analogix_dp_plat_data *);
+ int (*power_off)(struct analogix_dp_plat_data *);
+ int (*attach)(struct analogix_dp_plat_data *, struct drm_bridge *);
+};
+
+int analogix_dp_resume(struct device *dev);
+int analogix_dp_suspend(struct device *dev);
+
+int analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,
+ struct drm_encoder *encoder,
+ struct analogix_dp_plat_data *plat_data);
+void analogix_dp_unbind(struct device *dev, struct device *master, void *data);
+
+#endif /* _ANALOGIX_DP_H_ */
--
2.1.2
On Thursday, August 06, 2015 11:07 PM, Yakir Yang wrote:
>
> In order to move exynos dp code to bridge directory,
> we need to convert driver drm bridge mode first. As
> dp driver already have a ptn3460 bridge, so we need
> to move ptn bridge to the next bridge of dp bridge.
>
> Signed-off-by: Yakir Yang <[email protected]>
> ---
> drivers/gpu/drm/exynos/exynos_dp_core.c | 196 ++++++++++++++++++++------------
> drivers/gpu/drm/exynos/exynos_dp_core.h | 2 +
> 2 files changed, 126 insertions(+), 72 deletions(-)
>
> diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c
> index a8097a4..aa99e23 100644
> --- a/drivers/gpu/drm/exynos/exynos_dp_core.c
> +++ b/drivers/gpu/drm/exynos/exynos_dp_core.c
> @@ -3,6 +3,7 @@
> *
> * Copyright (C) 2012 Samsung Electronics Co., Ltd.
> * Author: Jingoo Han <[email protected]>
> + * Yakir Yang <[email protected]>
Please don't add this.
You just fixed some parts of this code. I don't find the reason
why you have to be added to author for this file.
If you want the title for an author, please send the patch
for a new IP, instead of modifying the exiting codes.
> *
> * This program is free software; you can redistribute it and/or modify it
> * under the terms of the GNU General Public License as published by the
> @@ -998,59 +999,6 @@ static struct drm_connector_helper_funcs exynos_dp_connector_helper_funcs = {
> .best_encoder = exynos_dp_best_encoder,
> };
>
> -/* returns the number of bridges attached */
> -static int exynos_drm_attach_lcd_bridge(struct exynos_dp_device *dp,
> - struct drm_encoder *encoder)
> -{
> - int ret;
> -
> - encoder->bridge = dp->bridge;
> - dp->bridge->encoder = encoder;
> - ret = drm_bridge_attach(encoder->dev, dp->bridge);
> - if (ret) {
> - DRM_ERROR("Failed to attach bridge to drm\n");
> - return ret;
> - }
> -
> - return 0;
> -}
> -
> -static int exynos_dp_create_connector(struct exynos_drm_display *display,
> - struct drm_encoder *encoder)
> -{
> - struct exynos_dp_device *dp = display_to_dp(display);
> - struct drm_connector *connector = &dp->connector;
> - int ret;
> -
> - dp->encoder = encoder;
> -
> - /* Pre-empt DP connector creation if there's a bridge */
> - if (dp->bridge) {
> - ret = exynos_drm_attach_lcd_bridge(dp, encoder);
> - if (!ret)
> - return 0;
> - }
> -
> - connector->polled = DRM_CONNECTOR_POLL_HPD;
> -
> - ret = drm_connector_init(dp->drm_dev, connector,
> - &exynos_dp_connector_funcs,
> - DRM_MODE_CONNECTOR_eDP);
> - if (ret) {
> - DRM_ERROR("Failed to initialize connector with drm\n");
> - return ret;
> - }
> -
> - drm_connector_helper_add(connector, &exynos_dp_connector_helper_funcs);
> - drm_connector_register(connector);
> - drm_mode_connector_attach_encoder(connector, encoder);
> -
> - if (dp->panel)
> - ret = drm_panel_attach(dp->panel, &dp->connector);
> -
> - return ret;
> -}
> -
> static void exynos_dp_phy_init(struct exynos_dp_device *dp)
> {
> if (dp->phy)
> @@ -1115,23 +1063,126 @@ static void exynos_dp_poweroff(struct exynos_dp_device *dp)
> }
> }
>
> -static void exynos_dp_dpms(struct exynos_drm_display *display, int mode)
> +/* returns the number of bridges attached */
> +static int exynos_drm_attach_lcd_bridge(struct exynos_dp_device *dp,
> + struct drm_encoder *encoder)
> +{
> + int ret;
> +
> + dp->bridge->next = dp->ptn_bridge;
> + dp->bridge->encoder = encoder;
> + ret = drm_bridge_attach(encoder->dev, dp->bridge);
> + if (ret) {
> + DRM_ERROR("Failed to attach ptn bridge to drm\n");
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> +static int exynos_dp_bridge_attach(struct drm_bridge *bridge)
> +{
> +
> + struct exynos_dp_device *dp = bridge->driver_private;
> + struct drm_encoder *encoder = dp->encoder;
> + struct drm_connector *connector = &dp->connector;
> + int ret;
> +
> + if (!bridge->encoder) {
> + DRM_ERROR("Parent encoder object not found");
> + return -ENODEV;
> + }
> +
> + encoder->bridge = bridge;
> +
> + /* Pre-empt DP connector creation if there's a bridge */
> + if (dp->ptn_bridge) {
> + ret = exynos_drm_attach_lcd_bridge(dp, encoder);
> + if (ret)
> + return -ENODEV;
> + }
> +
> + connector->polled = DRM_CONNECTOR_POLL_HPD;
> +
> + ret = drm_connector_init(dp->drm_dev, connector,
> + &exynos_dp_connector_funcs, DRM_MODE_CONNECTOR_eDP);
> + if (ret) {
> + DRM_ERROR("Failed to initialize connector with drm\n");
> + return ret;
> + }
> +
> + drm_connector_helper_add(connector, &exynos_dp_connector_helper_funcs);
> + drm_connector_register(connector);
> + drm_mode_connector_attach_encoder(connector, encoder);
> +
> + if (dp->panel)
> + ret = drm_panel_attach(dp->panel, &dp->connector);
> +
> + return ret;
> +}
> +
> +static void exynos_dp_bridge_nop(struct drm_bridge *bridge)
> +{
> + /* do nothing */
> +}
> +
> +static void exynos_dp_bridge_enable(struct drm_bridge *bridge)
> +{
> + struct exynos_dp_device *dp = bridge->driver_private;
> +
> + exynos_dp_poweron(dp);
> + dp->dpms_mode = DRM_MODE_DPMS_ON;
> +}
> +
> +static void exynos_dp_bridge_disable(struct drm_bridge *bridge)
> +{
> + struct exynos_dp_device *dp = bridge->driver_private;
> +
> + exynos_dp_poweroff(dp);
> + dp->dpms_mode = DRM_MODE_DPMS_OFF;
> +}
> +
> +static const struct drm_bridge_funcs exynos_dp_bridge_funcs = {
> + .enable = exynos_dp_bridge_enable,
> + .disable = exynos_dp_bridge_disable,
> + .pre_enable = exynos_dp_bridge_nop,
> + .post_disable = exynos_dp_bridge_nop,
> + .attach = exynos_dp_bridge_attach,
> +};
> +
> +static int exynos_dp_create_connector(struct exynos_drm_display *display,
> + struct drm_encoder *encoder)
> {
> struct exynos_dp_device *dp = display_to_dp(display);
> + struct drm_device *drm_dev = dp->drm_dev;
> + struct drm_bridge *bridge;
> + int ret;
>
> - switch (mode) {
> - case DRM_MODE_DPMS_ON:
> - exynos_dp_poweron(dp);
> - break;
> - case DRM_MODE_DPMS_STANDBY:
> - case DRM_MODE_DPMS_SUSPEND:
> - case DRM_MODE_DPMS_OFF:
> - exynos_dp_poweroff(dp);
> - break;
> - default:
> - break;
> + bridge = devm_kzalloc(drm_dev->dev, sizeof(*bridge), GFP_KERNEL);
> + if (!bridge) {
> + DRM_ERROR("failed to allocate for drm bridge\n");
> + return -ENOMEM;
> }
> - dp->dpms_mode = mode;
> +
> + dp->bridge = bridge;
> + dp->encoder = encoder;
> +
> + bridge->driver_private = dp;
> + bridge->encoder = dp->encoder;
> + bridge->funcs = &exynos_dp_bridge_funcs;
> +
> + ret = drm_bridge_attach(drm_dev, bridge);
> + if (ret) {
> + DRM_ERROR("failed to attach drm bridge\n");
> + return -EINVAL;
> + }
> +
> + return 0;
> +}
> +
> +static void exynos_dp_dpms(struct exynos_drm_display *display, int mode)
> +{
> + /* do nothing */
> }
>
> static struct exynos_drm_display_ops exynos_dp_display_ops = {
> @@ -1243,7 +1294,7 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
> }
> }
>
> - if (!dp->panel && !dp->bridge) {
> + if (!dp->panel && !dp->ptn_bridge) {
> ret = exynos_dp_dt_parse_panel(dp);
> if (ret)
> return ret;
> @@ -1316,7 +1367,7 @@ static void exynos_dp_unbind(struct device *dev, struct device *master,
> {
> struct exynos_dp_device *dp = dev_get_drvdata(dev);
>
> - exynos_dp_dpms(&dp->display, DRM_MODE_DPMS_OFF);
> + exynos_dp_bridge_disable(dp->bridge);
> }
>
> static const struct component_ops exynos_dp_ops = {
> @@ -1351,9 +1402,9 @@ static int exynos_dp_probe(struct platform_device *pdev)
> if (endpoint) {
> bridge_node = of_graph_get_remote_port_parent(endpoint);
> if (bridge_node) {
> - dp->bridge = of_drm_find_bridge(bridge_node);
> + dp->ptn_bridge = of_drm_find_bridge(bridge_node);
> of_node_put(bridge_node);
> - if (!dp->bridge)
> + if (!dp->ptn_bridge)
> return -EPROBE_DEFER;
> } else {
> return -EPROBE_DEFER;
> @@ -1375,7 +1426,7 @@ static int exynos_dp_suspend(struct device *dev)
> {
> struct exynos_dp_device *dp = dev_get_drvdata(dev);
>
> - exynos_dp_dpms(&dp->display, DRM_MODE_DPMS_OFF);
> + exynos_dp_bridge_disable(dp->bridge);
> return 0;
> }
>
> @@ -1383,7 +1434,7 @@ static int exynos_dp_resume(struct device *dev)
> {
> struct exynos_dp_device *dp = dev_get_drvdata(dev);
>
> - exynos_dp_dpms(&dp->display, DRM_MODE_DPMS_ON);
> + exynos_dp_bridge_enable(dp->bridge);
> return 0;
> }
> #endif
> @@ -1410,5 +1461,6 @@ struct platform_driver dp_driver = {
> };
>
> MODULE_AUTHOR("Jingoo Han <[email protected]>");
> +MODULE_AUTHOR("Yakir Yang <[email protected]>");
The same as above.
> MODULE_DESCRIPTION("Samsung SoC DP Driver");
> MODULE_LICENSE("GPL v2");
> diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.h b/drivers/gpu/drm/exynos/exynos_dp_core.h
> index c321ad5..f2584b8 100644
> --- a/drivers/gpu/drm/exynos/exynos_dp_core.h
> +++ b/drivers/gpu/drm/exynos/exynos_dp_core.h
> @@ -3,6 +3,7 @@
> *
> * Copyright (C) 2012 Samsung Electronics Co., Ltd.
> * Author: Jingoo Han <[email protected]>
> + * Yakir Yang <[email protected]>
The same as above.
Here, you just added 1 line. If we add someone to author
in this way, a lot of people should be added to author.
Best regards,
Jingoo Han
> *
> * This program is free software; you can redistribute it and/or modify it
> * under the terms of the GNU General Public License as published by the
> @@ -154,6 +155,7 @@ struct exynos_dp_device {
> struct drm_encoder *encoder;
> struct drm_panel *panel;
> struct drm_bridge *bridge;
> + struct drm_bridge *ptn_bridge;
> struct clk *clock;
> unsigned int irq;
> void __iomem *reg_base;
> --
> 2.1.2
Rockchip have three clocks for dp controller, we leave pclk_edp
to analogix_dp driver control, and keep the sclk_edp_24m and
sclk_edp in platform driver.
Signed-off-by: Yakir Yang <[email protected]>
---
drivers/gpu/drm/rockchip/Kconfig | 10 +
drivers/gpu/drm/rockchip/Makefile | 1 +
drivers/gpu/drm/rockchip/analogix_dp-rockchip.c | 419 ++++++++++++++++++++++++
3 files changed, 430 insertions(+)
create mode 100644 drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
diff --git a/drivers/gpu/drm/rockchip/Kconfig b/drivers/gpu/drm/rockchip/Kconfig
index 35215f6..096ed77 100644
--- a/drivers/gpu/drm/rockchip/Kconfig
+++ b/drivers/gpu/drm/rockchip/Kconfig
@@ -25,3 +25,13 @@ config ROCKCHIP_DW_HDMI
for the Synopsys DesignWare HDMI driver. If you want to
enable HDMI on RK3288 based SoC, you should selet this
option.
+
+
+config ROCKCHIP_ANALOGIX_DP
+ tristate "Rockchip specific extensions for Analogix DP driver"
+ depends on DRM_ROCKCHIP
+ select DRM_ANALOGIX_DP
+ help
+ This selects support for Rockchip SoC specific extensions
+ for the Analogix Core DP driver. If you want to enable DP
+ on RK3288 based SoC, you should selet this option.
diff --git a/drivers/gpu/drm/rockchip/Makefile b/drivers/gpu/drm/rockchip/Makefile
index f3d8a19..8ad01fb 100644
--- a/drivers/gpu/drm/rockchip/Makefile
+++ b/drivers/gpu/drm/rockchip/Makefile
@@ -6,5 +6,6 @@ rockchipdrm-y := rockchip_drm_drv.o rockchip_drm_fb.o rockchip_drm_fbdev.o \
rockchip_drm_gem.o
obj-$(CONFIG_ROCKCHIP_DW_HDMI) += dw_hdmi-rockchip.o
+obj-$(CONFIG_ROCKCHIP_ANALOGIX_DP) += analogix_dp-rockchip.o
obj-$(CONFIG_DRM_ROCKCHIP) += rockchipdrm.o rockchip_drm_vop.o
diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
new file mode 100644
index 0000000..804048c
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
@@ -0,0 +1,419 @@
+/*
+ * Rockchip SoC DP (Display Port) interface driver.
+ *
+ * Copyright (C) Fuzhou Rockchip Electronics Co., Ltd.
+ * Author: Andy Yan <[email protected]>
+ * Jeff Chen <[email protected]>
+ * Yakir Yang <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_panel.h>
+#include <drm/drm_of.h>
+#include <drm/drm_dp_helper.h>
+
+#include <linux/component.h>
+#include <linux/clk.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
+#include <linux/reset.h>
+
+#include <video/of_videomode.h>
+#include <video/videomode.h>
+
+#include <drm/bridge/analogix_dp.h>
+
+#include "rockchip_drm_drv.h"
+#include "rockchip_drm_vop.h"
+
+#define encoder_to_dp(c) \
+ container_of(c, struct rockchip_dp_device, encoder)
+
+#define plat_data_to_dp(pd) \
+ container_of(pd, struct rockchip_dp_device, plat_data)
+
+/* dp grf register offset */
+#define DP_VOP_SEL 0x025c /* grf_soc_con6 */
+#define DP_REF_CLK_SEL 0x0274 /* grf_soc_con12 */
+
+#define GRF_DP_REF_CLK_SEL_INTER BIT(4)
+#define DP_SEL_VOP_LIT BIT(5)
+
+struct rockchip_dp_device {
+ struct drm_device *drm_dev;
+ struct device *dev;
+ struct drm_encoder encoder;
+ struct drm_display_mode mode;
+
+ struct clk *clk_dp;
+ struct clk *clk_24m_parent;
+ struct clk *clk_24m;
+ struct regmap *grf;
+ struct reset_control *rst;
+
+ struct analogix_dp_plat_data plat_data;
+};
+
+static int rockchip_dp_clk_enable(struct rockchip_dp_device *dp)
+{
+ int ret = 0;
+
+ ret = clk_prepare_enable(dp->clk_dp);
+ if (ret < 0) {
+ dev_err(dp->dev, "cannot enable clk_dp %d\n", ret);
+ goto err_clk_dp;
+ }
+
+ ret = clk_set_rate(dp->clk_24m, 24000000);
+ if (ret < 0) {
+ dev_err(dp->dev, "cannot set dp clk_24m %d\n",
+ ret);
+ goto err_clk_24m;
+ }
+
+ ret = clk_prepare_enable(dp->clk_24m);
+ if (ret < 0) {
+ dev_err(dp->dev, "cannot enable dp clk_24m %d\n",
+ ret);
+ goto err_clk_24m;
+ }
+
+ return 0;
+
+err_clk_24m:
+ clk_disable_unprepare(dp->clk_dp);
+err_clk_dp:
+ return ret;
+}
+
+static int rockchip_dp_clk_disable(struct rockchip_dp_device *dp)
+{
+ clk_disable_unprepare(dp->clk_dp);
+ clk_disable_unprepare(dp->clk_24m);
+
+ return 0;
+}
+
+static int rockchip_dp_pre_init(struct rockchip_dp_device *dp)
+{
+ u32 val;
+ int ret;
+
+ val = GRF_DP_REF_CLK_SEL_INTER | (GRF_DP_REF_CLK_SEL_INTER << 16);
+ ret = regmap_write(dp->grf, DP_REF_CLK_SEL, val);
+ if (ret != 0) {
+ dev_err(dp->dev, "Could not write to GRF: %d\n", ret);
+ return ret;
+ }
+
+ reset_control_assert(dp->rst);
+ usleep_range(10, 20);
+ reset_control_deassert(dp->rst);
+
+ return 0;
+}
+
+static int rockchip_dp_poweron(struct analogix_dp_plat_data *plat_data)
+{
+ struct rockchip_dp_device *dp = plat_data_to_dp(plat_data);
+ int ret;
+
+ ret = rockchip_dp_clk_enable(dp);
+ if (ret < 0) {
+ dev_err(dp->dev, "cannot enable dp clk %d\n", ret);
+ return -1;
+ }
+
+ ret = rockchip_dp_pre_init(dp);
+ if (ret < 0) {
+ dev_err(dp->dev, "dp pre init fail %d\n", ret);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int rockchip_dp_poweroff(struct analogix_dp_plat_data *plat_data)
+{
+ struct rockchip_dp_device *dp = plat_data_to_dp(plat_data);
+
+ rockchip_dp_clk_disable(dp);
+
+ return 0;
+}
+
+static bool
+rockchip_dp_drm_encoder_mode_fixup(struct drm_encoder *encoder,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ /* do nothing */
+ return true;
+}
+
+static void rockchip_dp_drm_encoder_mode_set(struct drm_encoder *encoder,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted)
+{
+ /* do nothing */
+}
+
+static void rockchip_dp_drm_encoder_prepare(struct drm_encoder *encoder)
+{
+ struct rockchip_dp_device *dp = encoder_to_dp(encoder);
+ u32 val;
+ int ret;
+
+ ret = rockchip_drm_crtc_mode_config(encoder->crtc,
+ DRM_MODE_CONNECTOR_eDP,
+ ROCKCHIP_OUT_MODE_AAAA);
+ if (ret < 0) {
+ dev_err(dp->dev, "Could not set crtc mode config: %d.\n", ret);
+ return;
+ }
+
+ ret = rockchip_drm_encoder_get_mux_id(dp->dev->of_node, encoder);
+ if (ret < 0)
+ return;
+
+ if (ret)
+ val = DP_SEL_VOP_LIT | (DP_SEL_VOP_LIT << 16);
+ else
+ val = DP_SEL_VOP_LIT << 16;
+
+ dev_info(dp->dev, "vop %s output to dp\n", (ret) ? "LIT" : "BIG");
+
+ ret = regmap_write(dp->grf, DP_VOP_SEL, val);
+ if (ret != 0) {
+ dev_err(dp->dev, "Could not write to GRF: %d\n", ret);
+ return;
+ }
+}
+
+static void rockchip_dp_drm_encoder_nop(struct drm_encoder *encoder)
+{
+ /* do nothing */
+}
+
+static struct drm_encoder_helper_funcs rockchip_dp_encoder_helper_funcs = {
+ .mode_fixup = rockchip_dp_drm_encoder_mode_fixup,
+ .mode_set = rockchip_dp_drm_encoder_mode_set,
+ .prepare = rockchip_dp_drm_encoder_prepare,
+ .commit = rockchip_dp_drm_encoder_nop,
+ .disable = rockchip_dp_drm_encoder_nop,
+};
+
+static void rockchip_dp_drm_encoder_destroy(struct drm_encoder *encoder)
+{
+ drm_encoder_cleanup(encoder);
+}
+
+static struct drm_encoder_funcs rockchip_dp_encoder_funcs = {
+ .destroy = rockchip_dp_drm_encoder_destroy,
+};
+
+static int rockchip_dp_init(struct rockchip_dp_device *dp)
+{
+ struct device *dev = dp->dev;
+ struct device_node *np = dev->of_node;
+ int ret;
+
+ dp->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");
+ if (IS_ERR(dp->grf)) {
+ dev_err(dev,
+ "rk3288-dp needs rockchip,grf property\n");
+ return PTR_ERR(dp->grf);
+ }
+
+ dp->clk_dp = devm_clk_get(dev, "clk_dp");
+ if (IS_ERR(dp->clk_dp)) {
+ dev_err(dev, "cannot get clk_dp\n");
+ return PTR_ERR(dp->clk_dp);
+ }
+
+ dp->clk_24m = devm_clk_get(dev, "clk_dp_24m");
+ if (IS_ERR(dp->clk_24m)) {
+ dev_err(dev, "cannot get clk_dp_24m\n");
+ return PTR_ERR(dp->clk_24m);
+ }
+
+ dp->rst = devm_reset_control_get(dev, "dp");
+ if (IS_ERR(dp->rst)) {
+ dev_err(dev, "failed to get reset\n");
+ return PTR_ERR(dp->rst);
+ }
+
+ ret = rockchip_dp_clk_enable(dp);
+ if (ret < 0) {
+ dev_err(dp->dev, "cannot enable dp clk %d\n", ret);
+ return ret;
+ }
+
+ ret = rockchip_dp_pre_init(dp);
+ if (ret < 0) {
+ dev_err(dp->dev, "failed to pre init %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int rockchip_dp_drm_create_encoder(struct rockchip_dp_device *dp)
+{
+ struct drm_encoder *encoder = &dp->encoder;
+ struct drm_device *drm_dev = dp->drm_dev;
+ struct device *dev = dp->dev;
+ int ret;
+
+ encoder->possible_crtcs = drm_of_find_possible_crtcs(drm_dev,
+ dev->of_node);
+ DRM_DEBUG_KMS("possible_crtcs = 0x%x\n", encoder->possible_crtcs);
+
+ ret = drm_encoder_init(drm_dev, encoder, &rockchip_dp_encoder_funcs,
+ DRM_MODE_ENCODER_TMDS);
+ if (ret) {
+ DRM_ERROR("failed to initialize encoder with drm\n");
+ return ret;
+ }
+
+ drm_encoder_helper_add(encoder, &rockchip_dp_encoder_helper_funcs);
+
+ return 0;
+}
+
+static int rockchip_dp_bind(struct device *dev, struct device *master,
+ void *data)
+{
+ struct rockchip_dp_device *dp = dev_get_drvdata(dev);
+ struct drm_device *drm_dev = data;
+ int ret;
+
+ /*
+ * Just like the probe function said, we don't need the
+ * device drvrate anymore, we should leave the charge to
+ * analogix dp driver, set the device drvdata to NULL.
+ */
+ dev_set_drvdata(dev, NULL);
+
+ ret = rockchip_dp_init(dp);
+ if (ret < 0)
+ return ret;
+
+ dp->drm_dev = drm_dev;
+
+ ret = rockchip_dp_drm_create_encoder(dp);
+ if (ret) {
+ DRM_ERROR("failed to create drm encoder\n");
+ return ret;
+ }
+
+ dp->plat_data.attach = NULL;
+ dp->plat_data.power_on = rockchip_dp_poweron;
+ dp->plat_data.power_off = rockchip_dp_poweroff;
+
+ return analogix_dp_bind(dev, dp->drm_dev, &dp->encoder,
+ &dp->plat_data);
+}
+
+static void rockchip_dp_unbind(struct device *dev, struct device *master,
+ void *data)
+{
+ return analogix_dp_unbind(dev, master, data);
+}
+
+static const struct component_ops rockchip_dp_component_ops = {
+ .bind = rockchip_dp_bind,
+ .unbind = rockchip_dp_unbind,
+};
+
+static int rockchip_dp_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *panel_node;
+ struct rockchip_dp_device *dp;
+ struct drm_panel *panel;
+
+ panel_node = of_parse_phandle(dev->of_node, "rockchip,panel", 0);
+ if (!panel_node) {
+ DRM_ERROR("failed to find rockchip,panel dt node\n");
+ return -ENODEV;
+ }
+
+ panel = of_drm_find_panel(panel_node);
+ if (!panel) {
+ DRM_ERROR("failed to find panel\n");
+ of_node_put(panel_node);
+ return -EPROBE_DEFER;
+ }
+
+ of_node_put(panel_node);
+
+ dp = devm_kzalloc(dev, sizeof(*dp), GFP_KERNEL);
+ if (!dp)
+ return -ENOMEM;
+
+ dp->dev = dev;
+
+ dp->plat_data.panel = panel;
+
+ /*
+ * We just use the drvdata until driver run into component
+ * add function, and then we would set drvdata to null, so
+ * that analogix dp driver could take charge of the drvdata.
+ */
+ platform_set_drvdata(pdev, dp);
+
+ return component_add(dev, &rockchip_dp_component_ops);
+}
+
+static int rockchip_dp_remove(struct platform_device *pdev)
+{
+ component_del(&pdev->dev, &rockchip_dp_component_ops);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int rockchip_dp_suspend(struct device *dev)
+{
+ return analogix_dp_suspend(dev);
+}
+
+static int rockchip_dp_resume(struct device *dev)
+{
+ return analogix_dp_resume(dev);
+}
+#endif
+
+static const struct dev_pm_ops rockchip_dp_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(rockchip_dp_suspend, rockchip_dp_resume)
+};
+
+static const struct of_device_id rockchip_dp_dt_ids[] = {
+ {.compatible = "rockchip,rk3288-dp",},
+ {}
+};
+MODULE_DEVICE_TABLE(of, rockchip_dp_dt_ids);
+
+static struct platform_driver rockchip_dp_driver = {
+ .probe = rockchip_dp_probe,
+ .remove = rockchip_dp_remove,
+ .driver = {
+ .name = "rockchip-dp",
+ .owner = THIS_MODULE,
+ .pm = &rockchip_dp_pm_ops,
+ .of_match_table = of_match_ptr(rockchip_dp_dt_ids),
+ },
+};
+
+module_platform_driver(rockchip_dp_driver);
+
+MODULE_AUTHOR("Jeff chen <[email protected]>");
+MODULE_AUTHOR("Yakir Yang <[email protected]>");
+MODULE_DESCRIPTION("Rockchip Specific Analogix-DP Driver Extension");
+MODULE_LICENSE("GPL v2");
--
2.1.2
Signed-off-by: Yakir Yang <[email protected]>
---
drivers/gpu/drm/exynos/analogix_dp-exynos.c | 1 +
drivers/gpu/drm/rockchip/analogix_dp-rockchip.c | 1 +
include/drm/bridge/analogix_dp.h | 6 ++++++
3 files changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/exynos/analogix_dp-exynos.c b/drivers/gpu/drm/exynos/analogix_dp-exynos.c
index b8d09d4..0668e77 100644
--- a/drivers/gpu/drm/exynos/analogix_dp-exynos.c
+++ b/drivers/gpu/drm/exynos/analogix_dp-exynos.c
@@ -124,6 +124,7 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
dp->dev = dev;
dp->drm_dev = drm_dev;
+ dp->plat_data.dev_type = EXYNOS_DP;
dp->plat_data.power_on = exynos_dp_poweron;
dp->plat_data.power_off = exynos_dp_poweroff;
dp->plat_data.attach = exynos_dp_bridge_attach;
diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
index 804048c..b532c21 100644
--- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
+++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
@@ -312,6 +312,7 @@ static int rockchip_dp_bind(struct device *dev, struct device *master,
return ret;
}
+ dp->plat_data.dev_type = RK3288_DP;
dp->plat_data.attach = NULL;
dp->plat_data.power_on = rockchip_dp_poweron;
dp->plat_data.power_off = rockchip_dp_poweroff;
diff --git a/include/drm/bridge/analogix_dp.h b/include/drm/bridge/analogix_dp.h
index 9a207f8..f317003 100644
--- a/include/drm/bridge/analogix_dp.h
+++ b/include/drm/bridge/analogix_dp.h
@@ -3,7 +3,13 @@
#include <drm/drm_crtc.h>
+enum analogix_dp_devtype {
+ EXYNOS_DP,
+ RK3288_DP,
+};
+
struct analogix_dp_plat_data {
+ enum analogix_dp_devtype dev_type;
struct drm_panel *panel;
int (*power_on)(struct analogix_dp_plat_data *);
--
2.1.2
RK3288 need some special registers setting, we can separate
them out by the dev_type of plat_data.
Signed-off-by: Yakir Yang <[email protected]>
---
drivers/gpu/drm/bridge/analogix_dp_reg.c | 76 ++++++++++++++++++++------------
drivers/gpu/drm/bridge/analogix_dp_reg.h | 12 +++++
2 files changed, 60 insertions(+), 28 deletions(-)
diff --git a/drivers/gpu/drm/bridge/analogix_dp_reg.c b/drivers/gpu/drm/bridge/analogix_dp_reg.c
index dfbbde7..4d6e08a 100644
--- a/drivers/gpu/drm/bridge/analogix_dp_reg.c
+++ b/drivers/gpu/drm/bridge/analogix_dp_reg.c
@@ -16,6 +16,8 @@
#include <linux/delay.h>
#include <linux/gpio.h>
+#include <drm/bridge/analogix_dp.h>
+
#include "analogix_dp_core.h"
#include "analogix_dp_reg.h"
@@ -73,6 +75,14 @@ void analogix_dp_init_analog_param(struct analogix_dp_device *dp)
reg = SEL_24M | TX_DVDD_BIT_1_0625V;
writel(reg, dp->reg_base + ANALOGIX_DP_ANALOG_CTL_2);
+ if (dp->plat_data && (dp->plat_data->dev_type == RK3288_DP)) {
+ writel(REF_CLK_24M, dp->reg_base + ANALOGIX_DP_PLL_REG_1);
+ writel(0x95, dp->reg_base + ANALOGIX_DP_PLL_REG_2);
+ writel(0x40, dp->reg_base + ANALOGIX_DP_PLL_REG_3);
+ writel(0x58, dp->reg_base + ANALOGIX_DP_PLL_REG_4);
+ writel(0x22, dp->reg_base + ANALOGIX_DP_PLL_REG_5);
+ }
+
reg = DRIVE_DVDD_BIT_1_0625V | VCO_BIT_600_MICRO;
writel(reg, dp->reg_base + ANALOGIX_DP_ANALOG_CTL_3);
@@ -207,81 +217,85 @@ void analogix_dp_set_analog_power_down(struct analogix_dp_device *dp,
bool enable)
{
u32 reg;
+ u32 phy_pd_addr = ANALOGIX_DP_PHY_PD;
+
+ if (dp->plat_data && (dp->plat_data->dev_type == RK3288_DP))
+ phy_pd_addr = ANALOGIX_DP_PD;
switch (block) {
case AUX_BLOCK:
if (enable) {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_dp_addr);
reg |= AUX_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_dp_addr);
} else {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_dp_addr);
reg &= ~AUX_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_dp_addr);
}
break;
case CH0_BLOCK:
if (enable) {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_dp_addr);
reg |= CH0_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_dp_addr);
} else {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_dp_addr);
reg &= ~CH0_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_dp_addr);
}
break;
case CH1_BLOCK:
if (enable) {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_dp_addr);
reg |= CH1_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_dp_addr);
} else {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_dp_addr);
reg &= ~CH1_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_dp_addr);
}
break;
case CH2_BLOCK:
if (enable) {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_dp_addr);
reg |= CH2_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_dp_addr);
} else {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_dp_addr);
reg &= ~CH2_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_dp_addr);
}
break;
case CH3_BLOCK:
if (enable) {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_dp_addr);
reg |= CH3_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_dp_addr);
} else {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_dp_addr);
reg &= ~CH3_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_dp_addr);
}
break;
case ANALOG_TOTAL:
if (enable) {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_dp_addr);
reg |= DP_PHY_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_dp_addr);
} else {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_dp_addr);
reg &= ~DP_PHY_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_dp_addr);
}
break;
case POWER_ALL:
if (enable) {
reg = DP_PHY_PD | AUX_PD | CH3_PD | CH2_PD |
CH1_PD | CH0_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_dp_addr);
} else {
- writel(0x00, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(0x00, dp->reg_base + phy_dp_addr);
}
break;
default:
@@ -400,8 +414,14 @@ void analogix_dp_init_aux(struct analogix_dp_device *dp)
analogix_dp_reset_aux(dp);
/* Disable AUX transaction H/W retry */
- reg = AUX_BIT_PERIOD_EXPECTED_DELAY(3) | AUX_HW_RETRY_COUNT_SEL(0) |
- AUX_HW_RETRY_INTERVAL_600_MICROSECONDS;
+ if (dp->plat_data && (dp->plat_data->dev_type == RK3288_DP))
+ reg = AUX_BIT_PERIOD_EXPECTED_DELAY(0) |
+ AUX_HW_RETRY_COUNT_SEL(3) |
+ AUX_HW_RETRY_INTERVAL_600_MICROSECONDS;
+ else
+ reg = AUX_BIT_PERIOD_EXPECTED_DELAY(3) |
+ AUX_HW_RETRY_COUNT_SEL(0) |
+ AUX_HW_RETRY_INTERVAL_600_MICROSECONDS;
writel(reg, dp->reg_base + ANALOGIX_DP_AUX_HW_RETRY_CTL);
/* Receive AUX Channel DEFER commands equal to DEFFER_COUNT*64 */
diff --git a/drivers/gpu/drm/bridge/analogix_dp_reg.h b/drivers/gpu/drm/bridge/analogix_dp_reg.h
index 98153e2..96c538a 100644
--- a/drivers/gpu/drm/bridge/analogix_dp_reg.h
+++ b/drivers/gpu/drm/bridge/analogix_dp_reg.h
@@ -24,6 +24,14 @@
#define ANALOGIX_DP_VIDEO_CTL_8 0x3C
#define ANALOGIX_DP_VIDEO_CTL_10 0x44
+#define ANALOGIX_DP_PLL_REG_1 0xfc
+#define ANALOGIX_DP_PLL_REG_2 0x9e4
+#define ANALOGIX_DP_PLL_REG_3 0x9e8
+#define ANALOGIX_DP_PLL_REG_4 0x9ec
+#define ANALOGIX_DP_PLL_REG_5 0xa00
+
+#define ANALOGIX_DP_PD 0x12c
+
#define ANALOGIX_DP_LANE_MAP 0x35C
#define ANALOGIX_DP_ANALOG_CTL_1 0x370
@@ -156,6 +164,10 @@
#define VSYNC_POLARITY_CFG (0x1 << 1)
#define HSYNC_POLARITY_CFG (0x1 << 0)
+/* ANALOGIX_DP_PLL_REG_1 */
+#define REF_CLK_24M (0x1 << 1)
+#define REF_CLK_27M (0x0 << 1)
+
/* ANALOGIX_DP_LANE_MAP */
#define LANE3_MAP_LOGIC_LANE_0 (0x0 << 6)
#define LANE3_MAP_LOGIC_LANE_1 (0x1 << 6)
--
2.1.2
Some edp screen do not have hpd signal, so we can't just return
failed when hpd plug in detect failed.
Besides TRM indicate that if HPD_STATUS(RO) is 0, AUX CH will not
work, so we need to give a force hpd action to set HPD_STATUS manually.
Signed-off-by: Yakir Yang <[email protected]>
---
drivers/gpu/drm/bridge/analogix_dp_core.c | 28 +++++++++++++++++++++++-----
drivers/gpu/drm/bridge/analogix_dp_core.h | 1 +
drivers/gpu/drm/bridge/analogix_dp_reg.c | 9 +++++++++
3 files changed, 33 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/bridge/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix_dp_core.c
index 28724d4..7e67f19 100644
--- a/drivers/gpu/drm/bridge/analogix_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix_dp_core.c
@@ -68,15 +68,33 @@ static int analogix_dp_detect_hpd(struct analogix_dp_device *dp)
{
int timeout_loop = 0;
- while (analogix_dp_get_plug_in_status(dp) != 0) {
+ while (timeout_loop < DP_TIMEOUT_LOOP_COUNT) {
+ if (analogix_dp_get_plug_in_status(dp) == 0)
+ return 0;
+
timeout_loop++;
- if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
- dev_err(dp->dev, "failed to get hpd plug status\n");
- return -ETIMEDOUT;
- }
usleep_range(10, 11);
}
+ /*
+ * Some edp screen do not have hpd signal, so we can't just
+ * return failed when hpd plug in detect failed.
+ *
+ * Besides TRM indicate that if HPD_STATUS(RO) is 0, AUX CH
+ * will not work, so we need to give a force hpd action to
+ * set HPD_STATUS manually.
+ */
+ dev_dbg(dp->dev, "failed to get hpd plug status, try to force hpd\n");
+
+ analogix_dp_force_hpd(dp);
+
+ if (analogix_dp_get_plug_in_status(dp) != 0) {
+ dev_err(dp->dev, "failed to get hpd plug in status\n");
+ return -ETIMEDOUT;
+ }
+
+ dev_dbg(dp->dev, "success to get plug in status after force hpd\n");
+
return 0;
}
diff --git a/drivers/gpu/drm/bridge/analogix_dp_core.h b/drivers/gpu/drm/bridge/analogix_dp_core.h
index fe72695..43cec77 100644
--- a/drivers/gpu/drm/bridge/analogix_dp_core.h
+++ b/drivers/gpu/drm/bridge/analogix_dp_core.h
@@ -183,6 +183,7 @@ void analogix_dp_set_analog_power_down(struct analogix_dp_device *dp,
bool enable);
void analogix_dp_init_analog_func(struct analogix_dp_device *dp);
void analogix_dp_init_hpd(struct analogix_dp_device *dp);
+void analogix_dp_force_hpd(struct analogix_dp_device *dp);
enum dp_irq_type analogix_dp_get_irq_type(struct analogix_dp_device *dp);
void analogix_dp_clear_hotplug_interrupts(struct analogix_dp_device *dp);
void analogix_dp_reset_aux(struct analogix_dp_device *dp);
diff --git a/drivers/gpu/drm/bridge/analogix_dp_reg.c b/drivers/gpu/drm/bridge/analogix_dp_reg.c
index 4d6e08a..3fb215b 100644
--- a/drivers/gpu/drm/bridge/analogix_dp_reg.c
+++ b/drivers/gpu/drm/bridge/analogix_dp_reg.c
@@ -366,6 +366,15 @@ void analogix_dp_init_hpd(struct analogix_dp_device *dp)
writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
}
+void analogix_dp_force_hpd(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
+ reg = (F_HPD | HPD_CTRL);
+ writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
+}
+
enum dp_irq_type analogix_dp_get_irq_type(struct analogix_dp_device *dp)
{
u32 reg;
--
2.1.2
Some edp screen with no hpd signal would need some delay time
to ensure that screen would be ready for work, so we can expand
the delay time in hpd detect function, it works prefectly on my
rk3288 sdk board.
Signed-off-by: Yakir Yang <[email protected]>
---
drivers/gpu/drm/bridge/analogix_dp_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/bridge/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix_dp_core.c
index 7e67f19..447c94d 100644
--- a/drivers/gpu/drm/bridge/analogix_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix_dp_core.c
@@ -73,7 +73,7 @@ static int analogix_dp_detect_hpd(struct analogix_dp_device *dp)
return 0;
timeout_loop++;
- usleep_range(10, 11);
+ usleep_range(100, 110);
}
/*
--
2.1.2
Hi Jingoo,
在 2015/8/6 22:19, Jingoo Han 写道:
> On Thursday, August 06, 2015 11:07 PM, Yakir Yang wrote:
>> In order to move exynos dp code to bridge directory,
>> we need to convert driver drm bridge mode first. As
>> dp driver already have a ptn3460 bridge, so we need
>> to move ptn bridge to the next bridge of dp bridge.
>>
>> Signed-off-by: Yakir Yang <[email protected]>
>> ---
>> drivers/gpu/drm/exynos/exynos_dp_core.c | 196 ++++++++++++++++++++------------
>> drivers/gpu/drm/exynos/exynos_dp_core.h | 2 +
>> 2 files changed, 126 insertions(+), 72 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c
>> index a8097a4..aa99e23 100644
>> --- a/drivers/gpu/drm/exynos/exynos_dp_core.c
>> +++ b/drivers/gpu/drm/exynos/exynos_dp_core.c
>> @@ -3,6 +3,7 @@
>> *
>> * Copyright (C) 2012 Samsung Electronics Co., Ltd.
>> * Author: Jingoo Han <[email protected]>
>> + * Yakir Yang <[email protected]>
> Please don't add this.
> You just fixed some parts of this code. I don't find the reason
> why you have to be added to author for this file.
> If you want the title for an author, please send the patch
> for a new IP, instead of modifying the exiting codes.
Okay, thanks for your remind ;)
>> [...]
>> MODULE_AUTHOR("Jingoo Han <[email protected]>");
>> +MODULE_AUTHOR("Yakir Yang <[email protected]>");
> The same as above.
Done
>> MODULE_DESCRIPTION("Samsung SoC DP Driver");
>> MODULE_LICENSE("GPL v2");
>> diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.h b/drivers/gpu/drm/exynos/exynos_dp_core.h
>> index c321ad5..f2584b8 100644
>> --- a/drivers/gpu/drm/exynos/exynos_dp_core.h
>> +++ b/drivers/gpu/drm/exynos/exynos_dp_core.h
>> @@ -3,6 +3,7 @@
>> *
>> * Copyright (C) 2012 Samsung Electronics Co., Ltd.
>> * Author: Jingoo Han <[email protected]>
>> + * Yakir Yang <[email protected]>
> The same as above.
> Here, you just added 1 line. If we add someone to author
> in this way, a lot of people should be added to author.
Done
- Yakir
> Best regards,
> Jingoo Han
>
>
>
>
>
On Thursday, August 06, 2015 11:19 PM, Yakir Yang wrote:
>
> Split the dp core driver from exynos directory to bridge
> directory, and rename the core driver to analogix_dp_*,
> leave the platform code to analogix_dp-exynos.
>
> Signed-off-by: Yakir Yang <[email protected]>
> ---
> drivers/gpu/drm/bridge/Kconfig | 5 +
> drivers/gpu/drm/bridge/Makefile | 1 +
> .../exynos_dp_core.c => bridge/analogix_dp_core.c} | 751 +++++-------
> drivers/gpu/drm/bridge/analogix_dp_core.h | 286 +++++
> drivers/gpu/drm/bridge/analogix_dp_reg.c | 1266 ++++++++++++++++++++
> .../exynos_dp_reg.h => bridge/analogix_dp_reg.h} | 260 ++--
> drivers/gpu/drm/exynos/Kconfig | 5 +-
> drivers/gpu/drm/exynos/Makefile | 2 +-
> drivers/gpu/drm/exynos/analogix_dp-exynos.c | 240 ++++
> drivers/gpu/drm/exynos/exynos_dp_core.h | 283 -----
> include/drm/bridge/analogix_dp.h | 22 +
> 11 files changed, 2287 insertions(+), 834 deletions(-)
> rename drivers/gpu/drm/{exynos/exynos_dp_core.c => bridge/analogix_dp_core.c} (54%)
> create mode 100644 drivers/gpu/drm/bridge/analogix_dp_core.h
> create mode 100644 drivers/gpu/drm/bridge/analogix_dp_reg.c
> rename drivers/gpu/drm/{exynos/exynos_dp_reg.h => bridge/analogix_dp_reg.h} (63%)
> create mode 100644 drivers/gpu/drm/exynos/analogix_dp-exynos.c
> delete mode 100644 drivers/gpu/drm/exynos/exynos_dp_core.h
> create mode 100644 include/drm/bridge/analogix_dp.h
>
> diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig
> index acef322..c7638b5 100644
> --- a/drivers/gpu/drm/bridge/Kconfig
> +++ b/drivers/gpu/drm/bridge/Kconfig
> @@ -3,6 +3,11 @@ config DRM_DW_HDMI
> depends on DRM
> select DRM_KMS_HELPER
>
> +config DRM_ANALOGIX_DP
> + tristate
> + depends on DRM
> + select DRM_KMS_HELPER
> +
> config DRM_PTN3460
> tristate "PTN3460 DP/LVDS bridge"
> depends on DRM
> diff --git a/drivers/gpu/drm/bridge/Makefile b/drivers/gpu/drm/bridge/Makefile
> index 8dfebd9..a7ee559 100644
> --- a/drivers/gpu/drm/bridge/Makefile
> +++ b/drivers/gpu/drm/bridge/Makefile
> @@ -3,3 +3,4 @@ ccflags-y := -Iinclude/drm
> obj-$(CONFIG_DRM_PS8622) += ps8622.o
> obj-$(CONFIG_DRM_PTN3460) += ptn3460.o
> obj-$(CONFIG_DRM_DW_HDMI) += dw_hdmi.o
> +obj-$(CONFIG_DRM_ANALOGIX_DP) += analogix_dp_core.o analogix_dp_reg.o
> diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/bridge/analogix_dp_core.c
> similarity index 54%
> rename from drivers/gpu/drm/exynos/exynos_dp_core.c
> rename to drivers/gpu/drm/bridge/analogix_dp_core.c
> index aa99e23..28724d4 100644
> --- a/drivers/gpu/drm/exynos/exynos_dp_core.c
> +++ b/drivers/gpu/drm/bridge/analogix_dp_core.c
> @@ -1,7 +1,8 @@
> /*
> - * Samsung SoC DP (Display Port) interface driver.
> + * Analogix Core DP (Display Port) interface driver.
> *
> * Copyright (C) 2012 Samsung Electronics Co., Ltd.
> + * Copyright (C) FuZhou Rockchip Electronics Co., Ltd.
What is the reason to add this copyright?
You just replace 'exynos' prefix with 'analogix' prefix.
I cannot find the reason to add the copyright.
> * Author: Jingoo Han <[email protected]>
> * Yakir Yang <[email protected]>
> *
> @@ -32,51 +33,42 @@
> #include <drm/drm_atomic_helper.h>
> #include <drm/drm_panel.h>
>
> -#include "exynos_dp_core.h"
> +#include <drm/bridge/analogix_dp.h>
>
> -#define ctx_from_connector(c) container_of(c, struct exynos_dp_device, \
> - connector)
> +#include "analogix_dp_core.h"
>
> -static inline struct exynos_drm_crtc *dp_to_crtc(struct exynos_dp_device *dp)
> -{
> - return to_exynos_crtc(dp->encoder->crtc);
> -}
> -
> -static inline struct exynos_dp_device *
> -display_to_dp(struct exynos_drm_display *d)
> -{
> - return container_of(d, struct exynos_dp_device, display);
> -}
> +#define connector_to_dp(c) container_of(c, struct analogix_dp_device, \
> + connector)
>
> struct bridge_init {
> struct i2c_client *client;
> struct device_node *node;
> };
>
> -static void exynos_dp_init_dp(struct exynos_dp_device *dp)
> +static void analogix_dp_init_dp(struct analogix_dp_device *dp)
> {
> - exynos_dp_reset(dp);
> + analogix_dp_reset(dp);
>
> - exynos_dp_swreset(dp);
> + analogix_dp_swreset(dp);
>
> - exynos_dp_init_analog_param(dp);
> - exynos_dp_init_interrupt(dp);
> + analogix_dp_init_analog_param(dp);
> + analogix_dp_init_interrupt(dp);
>
> /* SW defined function Normal operation */
> - exynos_dp_enable_sw_function(dp);
> + analogix_dp_enable_sw_function(dp);
>
> - exynos_dp_config_interrupt(dp);
> - exynos_dp_init_analog_func(dp);
> + analogix_dp_config_interrupt(dp);
> + analogix_dp_init_analog_func(dp);
>
> - exynos_dp_init_hpd(dp);
> - exynos_dp_init_aux(dp);
> + analogix_dp_init_hpd(dp);
> + analogix_dp_init_aux(dp);
> }
>
> -static int exynos_dp_detect_hpd(struct exynos_dp_device *dp)
> +static int analogix_dp_detect_hpd(struct analogix_dp_device *dp)
> {
> int timeout_loop = 0;
>
> - while (exynos_dp_get_plug_in_status(dp) != 0) {
> + while (analogix_dp_get_plug_in_status(dp) != 0) {
> timeout_loop++;
> if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
> dev_err(dp->dev, "failed to get hpd plug status\n");
> @@ -88,7 +80,7 @@ static int exynos_dp_detect_hpd(struct exynos_dp_device *dp)
> return 0;
> }
>
> -static unsigned char exynos_dp_calc_edid_check_sum(unsigned char *edid_data)
> +static unsigned char analogix_dp_calc_edid_check_sum(unsigned char *edid_data)
> {
> int i;
> unsigned char sum = 0;
> @@ -99,7 +91,7 @@ static unsigned char exynos_dp_calc_edid_check_sum(unsigned char *edid_data)
> return sum;
> }
>
> -static int exynos_dp_read_edid(struct exynos_dp_device *dp)
> +static int analogix_dp_read_edid(struct analogix_dp_device *dp)
> {
> unsigned char edid[EDID_BLOCK_LENGTH * 2];
> unsigned int extend_block = 0;
> @@ -114,9 +106,9 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
> */
>
> /* Read Extension Flag, Number of 128-byte EDID extension blocks */
> - retval = exynos_dp_read_byte_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
> - EDID_EXTENSION_FLAG,
> - &extend_block);
> + retval = analogix_dp_read_byte_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
> + EDID_EXTENSION_FLAG,
> + &extend_block);
> if (retval)
> return retval;
>
> @@ -125,15 +117,15 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
>
> /* Read EDID data */
> retval =
> - exynos_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
> - EDID_HEADER_PATTERN,
> - EDID_BLOCK_LENGTH,
> - &edid[EDID_HEADER_PATTERN]);
> + analogix_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
> + EDID_HEADER_PATTERN,
> + EDID_BLOCK_LENGTH,
> + &edid[EDID_HEADER_PATTERN]);
> if (retval != 0) {
> dev_err(dp->dev, "EDID Read failed!\n");
> return -EIO;
> }
> - sum = exynos_dp_calc_edid_check_sum(edid);
> + sum = analogix_dp_calc_edid_check_sum(edid);
> if (sum != 0) {
> dev_err(dp->dev, "EDID bad checksum!\n");
> return -EIO;
> @@ -141,27 +133,27 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
>
> /* Read additional EDID data */
> retval =
> - exynos_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
> - EDID_BLOCK_LENGTH,
> - EDID_BLOCK_LENGTH,
> - &edid[EDID_BLOCK_LENGTH]);
> + analogix_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
> + EDID_BLOCK_LENGTH,
> + EDID_BLOCK_LENGTH,
> + &edid[EDID_BLOCK_LENGTH]);
> if (retval != 0) {
> dev_err(dp->dev, "EDID Read failed!\n");
> return -EIO;
> }
> - sum = exynos_dp_calc_edid_check_sum(&edid[EDID_BLOCK_LENGTH]);
> + sum = analogix_dp_calc_edid_check_sum(&edid[EDID_BLOCK_LENGTH]);
> if (sum != 0) {
> dev_err(dp->dev, "EDID bad checksum!\n");
> return -EIO;
> }
>
> - exynos_dp_read_byte_from_dpcd(dp, DP_TEST_REQUEST,
> - &test_vector);
> + analogix_dp_read_byte_from_dpcd(dp, DP_TEST_REQUEST,
> + &test_vector);
> if (test_vector & DP_TEST_LINK_EDID_READ) {
> - exynos_dp_write_byte_to_dpcd(
> + analogix_dp_write_byte_to_dpcd(
> dp, DP_TEST_EDID_CHECKSUM,
> edid[EDID_BLOCK_LENGTH + EDID_CHECKSUM]);
> - exynos_dp_write_byte_to_dpcd(
> + analogix_dp_write_byte_to_dpcd(
> dp, DP_TEST_RESPONSE,
> DP_TEST_EDID_CHECKSUM_WRITE);
> }
> @@ -169,26 +161,26 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
> dev_info(dp->dev, "EDID data does not include any extensions.\n");
>
> /* Read EDID data */
> - retval = exynos_dp_read_bytes_from_i2c(
> + retval = analogix_dp_read_bytes_from_i2c(
> dp, I2C_EDID_DEVICE_ADDR, EDID_HEADER_PATTERN,
> EDID_BLOCK_LENGTH, &edid[EDID_HEADER_PATTERN]);
> if (retval != 0) {
> dev_err(dp->dev, "EDID Read failed!\n");
> return -EIO;
> }
> - sum = exynos_dp_calc_edid_check_sum(edid);
> + sum = analogix_dp_calc_edid_check_sum(edid);
> if (sum != 0) {
> dev_err(dp->dev, "EDID bad checksum!\n");
> return -EIO;
> }
>
> - exynos_dp_read_byte_from_dpcd(dp, DP_TEST_REQUEST,
> - &test_vector);
> + analogix_dp_read_byte_from_dpcd(dp, DP_TEST_REQUEST,
> + &test_vector);
> if (test_vector & DP_TEST_LINK_EDID_READ) {
> - exynos_dp_write_byte_to_dpcd(
> + analogix_dp_write_byte_to_dpcd(
> dp, DP_TEST_EDID_CHECKSUM,
> edid[EDID_CHECKSUM]);
> - exynos_dp_write_byte_to_dpcd(
> + analogix_dp_write_byte_to_dpcd(
> dp, DP_TEST_RESPONSE,
> DP_TEST_EDID_CHECKSUM_WRITE);
> }
> @@ -198,20 +190,20 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
> return 0;
> }
>
> -static int exynos_dp_handle_edid(struct exynos_dp_device *dp)
> +static int analogix_dp_handle_edid(struct analogix_dp_device *dp)
> {
> u8 buf[12];
> int i;
> int retval;
>
> /* Read DPCD DP_DPCD_REV~RECEIVE_PORT1_CAP_1 */
> - retval = exynos_dp_read_bytes_from_dpcd(dp, DP_DPCD_REV, 12, buf);
> + retval = analogix_dp_read_bytes_from_dpcd(dp, DP_DPCD_REV, 12, buf);
> if (retval)
> return retval;
>
> /* Read EDID */
> for (i = 0; i < 3; i++) {
> - retval = exynos_dp_read_edid(dp);
> + retval = analogix_dp_read_edid(dp);
> if (!retval)
> break;
> }
> @@ -219,74 +211,74 @@ static int exynos_dp_handle_edid(struct exynos_dp_device *dp)
> return retval;
> }
>
> -static void exynos_dp_enable_rx_to_enhanced_mode(struct exynos_dp_device *dp,
> - bool enable)
> +static void analogix_dp_enable_rx_to_enhanced_mode(struct analogixdp_device *dp,
> + bool enable)
> {
> u8 data;
>
> - exynos_dp_read_byte_from_dpcd(dp, DP_LANE_COUNT_SET, &data);
> + analogix_dp_read_byte_from_dpcd(dp, DP_LANE_COUNT_SET, &data);
>
> if (enable)
> - exynos_dp_write_byte_to_dpcd(
> + analogix_dp_write_byte_to_dpcd(
> dp, DP_LANE_COUNT_SET,
> DP_LANE_COUNT_ENHANCED_FRAME_EN |
> DPCD_LANE_COUNT_SET(data));
> else
> - exynos_dp_write_byte_to_dpcd(
> + analogix_dp_write_byte_to_dpcd(
> dp, DP_LANE_COUNT_SET,
> DPCD_LANE_COUNT_SET(data));
> }
>
> -static int exynos_dp_is_enhanced_mode_available(struct exynos_dp_device *dp)
> +static int analogix_dp_is_enhanced_mode_available(struct analogix_dp_device *dp)
> {
> u8 data;
> int retval;
>
> - exynos_dp_read_byte_from_dpcd(dp, DP_MAX_LANE_COUNT, &data);
> + analogix_dp_read_byte_from_dpcd(dp, DP_MAX_LANE_COUNT, &data);
> retval = DPCD_ENHANCED_FRAME_CAP(data);
>
> return retval;
> }
>
> -static void exynos_dp_set_enhanced_mode(struct exynos_dp_device *dp)
> +static void analogix_dp_set_enhanced_mode(struct analogix_dp_device *dp)
> {
> u8 data;
>
> - data = exynos_dp_is_enhanced_mode_available(dp);
> - exynos_dp_enable_rx_to_enhanced_mode(dp, data);
> - exynos_dp_enable_enhanced_mode(dp, data);
> + data = analogix_dp_is_enhanced_mode_available(dp);
> + analogix_dp_enable_rx_to_enhanced_mode(dp, data);
> + analogix_dp_enable_enhanced_mode(dp, data);
> }
>
> -static void exynos_dp_training_pattern_dis(struct exynos_dp_device *dp)
> +static void analogix_dp_training_pattern_dis(struct analogix_dp_device *dp)
> {
> - exynos_dp_set_training_pattern(dp, DP_NONE);
> + analogix_dp_set_training_pattern(dp, DP_NONE);
>
> - exynos_dp_write_byte_to_dpcd(dp, DP_TRAINING_PATTERN_SET,
> - DP_TRAINING_PATTERN_DISABLE);
> + analogix_dp_write_byte_to_dpcd(dp, DP_TRAINING_PATTERN_SET,
> + DP_TRAINING_PATTERN_DISABLE);
> }
>
> -static void exynos_dp_set_lane_lane_pre_emphasis(struct exynos_dp_device *dp,
> - int pre_emphasis, int lane)
> +static void analogix_dp_set_lane_lane_pre_emphasis(struct analogixdp_device *dp,
> + int pre_emphasis, int lane)
> {
> switch (lane) {
> case 0:
> - exynos_dp_set_lane0_pre_emphasis(dp, pre_emphasis);
> + analogix_dp_set_lane0_pre_emphasis(dp, pre_emphasis);
> break;
> case 1:
> - exynos_dp_set_lane1_pre_emphasis(dp, pre_emphasis);
> + analogix_dp_set_lane1_pre_emphasis(dp, pre_emphasis);
> break;
>
> case 2:
> - exynos_dp_set_lane2_pre_emphasis(dp, pre_emphasis);
> + analogix_dp_set_lane2_pre_emphasis(dp, pre_emphasis);
> break;
>
> case 3:
> - exynos_dp_set_lane3_pre_emphasis(dp, pre_emphasis);
> + analogix_dp_set_lane3_pre_emphasis(dp, pre_emphasis);
> break;
> }
> }
>
> -static int exynos_dp_link_start(struct exynos_dp_device *dp)
> +static int analogix_dp_link_start(struct analogix_dp_device *dp)
> {
> u8 buf[4];
> int lane, lane_count, pll_tries, retval;
> @@ -300,24 +292,24 @@ static int exynos_dp_link_start(struct exynos_dp_device *dp)
> dp->link_train.cr_loop[lane] = 0;
>
> /* Set link rate and count as you want to establish*/
> - exynos_dp_set_link_bandwidth(dp, dp->link_train.link_rate);
> - exynos_dp_set_lane_count(dp, dp->link_train.lane_count);
> + analogix_dp_set_link_bandwidth(dp, dp->link_train.link_rate);
> + analogix_dp_set_lane_count(dp, dp->link_train.lane_count);
>
> /* Setup RX configuration */
> buf[0] = dp->link_train.link_rate;
> buf[1] = dp->link_train.lane_count;
> - retval = exynos_dp_write_bytes_to_dpcd(dp, DP_LINK_BW_SET, 2, buf);
> + retval = analogix_dp_write_bytes_to_dpcd(dp, DP_LINK_BW_SET, 2, buf);
> if (retval)
> return retval;
>
> /* Set TX pre-emphasis to minimum */
> for (lane = 0; lane < lane_count; lane++)
> - exynos_dp_set_lane_lane_pre_emphasis(dp, PRE_EMPHASIS_LEVEL_0,
> - lane);
> + analogix_dp_set_lane_lane_pre_emphasis(
> + dp, PRE_EMPHASIS_LEVEL_0, lane);
>
> /* Wait for PLL lock */
> pll_tries = 0;
> - while (exynos_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
> + while (analogix_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
> if (pll_tries == DP_TIMEOUT_LOOP_COUNT) {
> dev_err(dp->dev, "Wait for PLL lock timed out\n");
> return -ETIMEDOUT;
> @@ -328,12 +320,12 @@ static int exynos_dp_link_start(struct exynos_dp_device *dp)
> }
>
> /* Set training pattern 1 */
> - exynos_dp_set_training_pattern(dp, TRAINING_PTN1);
> + analogix_dp_set_training_pattern(dp, TRAINING_PTN1);
>
> /* Set RX training pattern */
> - retval = exynos_dp_write_byte_to_dpcd(dp, DP_TRAINING_PATTERN_SET,
> - DP_LINK_SCRAMBLING_DISABLE |
> - DP_TRAINING_PATTERN_1);
> + retval = analogix_dp_write_byte_to_dpcd(dp, DP_TRAINING_PATTERN_SET,
> + DP_LINK_SCRAMBLING_DISABLE |
> + DP_TRAINING_PATTERN_1);
> if (retval)
> return retval;
>
> @@ -341,13 +333,13 @@ static int exynos_dp_link_start(struct exynos_dp_device *dp)
> buf[lane] = DP_TRAIN_PRE_EMPH_LEVEL_0 |
> DP_TRAIN_VOLTAGE_SWING_LEVEL_0;
>
> - retval = exynos_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
> - lane_count, buf);
> + retval = analogix_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
> + lane_count, buf);
>
> return retval;
> }
>
> -static unsigned char exynos_dp_get_lane_status(u8 link_status[2], int lane)
> +static unsigned char analogix_dp_get_lane_status(u8 link_status[2], int lane)
> {
> int shift = (lane & 1) * 4;
> u8 link_value = link_status[lane >> 1];
> @@ -355,21 +347,21 @@ static unsigned char exynos_dp_get_lane_status(u8 link_status[2], int lane)
> return (link_value >> shift) & 0xf;
> }
>
> -static int exynos_dp_clock_recovery_ok(u8 link_status[2], int lane_count)
> +static int analogix_dp_clock_recovery_ok(u8 link_status[2], int lane_count)
> {
> int lane;
> u8 lane_status;
>
> for (lane = 0; lane < lane_count; lane++) {
> - lane_status = exynos_dp_get_lane_status(link_status, lane);
> + lane_status = analogix_dp_get_lane_status(link_status, lane);
> if ((lane_status & DP_LANE_CR_DONE) == 0)
> return -EINVAL;
> }
> return 0;
> }
>
> -static int exynos_dp_channel_eq_ok(u8 link_status[2], u8 link_align,
> - int lane_count)
> +static int analogix_dp_channel_eq_ok(u8 link_status[2], u8 link_align,
> + int lane_count)
> {
> int lane;
> u8 lane_status;
> @@ -378,7 +370,7 @@ static int exynos_dp_channel_eq_ok(u8 link_status[2], u8 link_align,
> return -EINVAL;
>
> for (lane = 0; lane < lane_count; lane++) {
> - lane_status = exynos_dp_get_lane_status(link_status, lane);
> + lane_status = analogix_dp_get_lane_status(link_status, lane);
> lane_status &= DP_CHANNEL_EQ_BITS;
> if (lane_status != DP_CHANNEL_EQ_BITS)
> return -EINVAL;
> @@ -387,8 +379,8 @@ static int exynos_dp_channel_eq_ok(u8 link_status[2], u8 link_align,
> return 0;
> }
>
> -static unsigned char exynos_dp_get_adjust_request_voltage(u8 adjust_request[2],
> - int lane)
> +static unsigned char
> +analogix_dp_get_adjust_request_voltage(u8 adjust_request[2], int lane)
> {
> int shift = (lane & 1) * 4;
> u8 link_value = adjust_request[lane >> 1];
> @@ -396,7 +388,7 @@ static unsigned char exynos_dp_get_adjust_request_voltage(u8 adjust_request[2],
> return (link_value >> shift) & 0x3;
> }
>
> -static unsigned char exynos_dp_get_adjust_request_pre_emphasis(
> +static unsigned char analogix_dp_get_adjust_request_pre_emphasis(
> u8 adjust_request[2],
> int lane)
> {
> @@ -406,45 +398,45 @@ static unsigned char exynos_dp_get_adjust_request_pre_emphasis(
> return ((link_value >> shift) & 0xc) >> 2;
> }
>
> -static void exynos_dp_set_lane_link_training(struct exynos_dp_device *dp,
> - u8 training_lane_set, int lane)
> +static void analogix_dp_set_lane_link_training(struct analogixdp_device *dp,
> + u8 training_lane_set, int lane)
> {
> switch (lane) {
> case 0:
> - exynos_dp_set_lane0_link_training(dp, training_lane_set);
> + analogix_dp_set_lane0_link_training(dp, training_lane_set);
> break;
> case 1:
> - exynos_dp_set_lane1_link_training(dp, training_lane_set);
> + analogix_dp_set_lane1_link_training(dp, training_lane_set);
> break;
>
> case 2:
> - exynos_dp_set_lane2_link_training(dp, training_lane_set);
> + analogix_dp_set_lane2_link_training(dp, training_lane_set);
> break;
>
> case 3:
> - exynos_dp_set_lane3_link_training(dp, training_lane_set);
> + analogix_dp_set_lane3_link_training(dp, training_lane_set);
> break;
> }
> }
>
> -static unsigned int exynos_dp_get_lane_link_training(
> - struct exynos_dp_device *dp,
> +static unsigned int analogix_dp_get_lane_link_training(
> + struct analogix_dp_device *dp,
> int lane)
> {
> u32 reg;
>
> switch (lane) {
> case 0:
> - reg = exynos_dp_get_lane0_link_training(dp);
> + reg = analogix_dp_get_lane0_link_training(dp);
> break;
> case 1:
> - reg = exynos_dp_get_lane1_link_training(dp);
> + reg = analogix_dp_get_lane1_link_training(dp);
> break;
> case 2:
> - reg = exynos_dp_get_lane2_link_training(dp);
> + reg = analogix_dp_get_lane2_link_training(dp);
> break;
> case 3:
> - reg = exynos_dp_get_lane3_link_training(dp);
> + reg = analogix_dp_get_lane3_link_training(dp);
> break;
> default:
> WARN_ON(1);
> @@ -454,25 +446,25 @@ static unsigned int exynos_dp_get_lane_link_training(
> return reg;
> }
>
> -static void exynos_dp_reduce_link_rate(struct exynos_dp_device *dp)
> +static void analogix_dp_reduce_link_rate(struct analogix_dp_device *dp)
> {
> - exynos_dp_training_pattern_dis(dp);
> - exynos_dp_set_enhanced_mode(dp);
> + analogix_dp_training_pattern_dis(dp);
> + analogix_dp_set_enhanced_mode(dp);
>
> dp->link_train.lt_state = FAILED;
> }
>
> -static void exynos_dp_get_adjust_training_lane(struct exynos_dp_device *dp,
> - u8 adjust_request[2])
> +static void analogix_dp_get_adjust_training_lane(struct analogixdp_device *dp,
> + u8 adjust_request[2])
> {
> int lane, lane_count;
> u8 voltage_swing, pre_emphasis, training_lane;
>
> lane_count = dp->link_train.lane_count;
> for (lane = 0; lane < lane_count; lane++) {
> - voltage_swing = exynos_dp_get_adjust_request_voltage(
> + voltage_swing = analogix_dp_get_adjust_request_voltage(
> adjust_request, lane);
> - pre_emphasis = exynos_dp_get_adjust_request_pre_emphasis(
> + pre_emphasis = analogix_dp_get_adjust_request_pre_emphasis(
> adjust_request, lane);
> training_lane = DPCD_VOLTAGE_SWING_SET(voltage_swing) |
> DPCD_PRE_EMPHASIS_SET(pre_emphasis);
> @@ -486,7 +478,7 @@ static void exynos_dp_get_adjust_training_lane(struct exynos_dp_device *dp,
> }
> }
>
> -static int exynos_dp_process_clock_recovery(struct exynos_dp_device *dp)
> +static int analogix_dp_process_clock_recovery(struct analogix_dp_device *dp)
> {
> int lane, lane_count, retval;
> u8 voltage_swing, pre_emphasis, training_lane;
> @@ -496,24 +488,24 @@ static int exynos_dp_process_clock_recovery(struct exynos_dp_device *dp)
>
> lane_count = dp->link_train.lane_count;
>
> - retval = exynos_dp_read_bytes_from_dpcd(dp, DP_LANE0_1_STATUS,
> - 2, link_status);
> + retval = analogix_dp_read_bytes_from_dpcd(
> + dp, DP_LANE0_1_STATUS, 2, link_status);
> if (retval)
> return retval;
>
> - retval = exynos_dp_read_bytes_from_dpcd(dp, DP_ADJUST_REQUEST_LANE0_1,
> - 2, adjust_request);
> + retval = analogix_dp_read_bytes_from_dpcd(
> + dp, DP_ADJUST_REQUEST_LANE0_1, 2, adjust_request);
> if (retval)
> return retval;
>
> - if (exynos_dp_clock_recovery_ok(link_status, lane_count) == 0) {
> + if (analogix_dp_clock_recovery_ok(link_status, lane_count) == 0) {
> /* set training pattern 2 for EQ */
> - exynos_dp_set_training_pattern(dp, TRAINING_PTN2);
> + analogix_dp_set_training_pattern(dp, TRAINING_PTN2);
>
> - retval = exynos_dp_write_byte_to_dpcd(
> - dp, DP_TRAINING_PATTERN_SET,
> - DP_LINK_SCRAMBLING_DISABLE |
> - DP_TRAINING_PATTERN_2);
> + retval = analogix_dp_write_byte_to_dpcd(
> + dp, DP_TRAINING_PATTERN_SET,
> + DP_LINK_SCRAMBLING_DISABLE |
> + DP_TRAINING_PATTERN_2);
> if (retval)
> return retval;
>
> @@ -521,12 +513,12 @@ static int exynos_dp_process_clock_recovery(struct exynos_dp_device *dp)
> dp->link_train.lt_state = EQUALIZER_TRAINING;
> } else {
> for (lane = 0; lane < lane_count; lane++) {
> - training_lane = exynos_dp_get_lane_link_training(
> + training_lane = analogix_dp_get_lane_link_training(
> dp, lane);
> - voltage_swing = exynos_dp_get_adjust_request_voltage(
> + voltage_swing = analogix_dp_get_adjust_request_voltage(
> adjust_request, lane);
> pre_emphasis =
> - exynos_dp_get_adjust_request_pre_emphasis(
> + analogix_dp_get_adjust_request_pre_emphasis(
> adjust_request, lane);
>
> if (DPCD_VOLTAGE_SWING_GET(training_lane) ==
> @@ -541,19 +533,19 @@ static int exynos_dp_process_clock_recovery(struct exynos_dp_device *dp)
> dev_err(dp->dev, "CR Max reached (%d,%d,%d)\n",
> dp->link_train.cr_loop[lane],
> voltage_swing, pre_emphasis);
> - exynos_dp_reduce_link_rate(dp);
> + analogix_dp_reduce_link_rate(dp);
> return -EIO;
> }
> }
> }
>
> - exynos_dp_get_adjust_training_lane(dp, adjust_request);
> + analogix_dp_get_adjust_training_lane(dp, adjust_request);
>
> for (lane = 0; lane < lane_count; lane++)
> - exynos_dp_set_lane_link_training(
> + analogix_dp_set_lane_link_training(
> dp, dp->link_train.training_lane[lane], lane);
>
> - retval = exynos_dp_write_bytes_to_dpcd(
> + retval = analogix_dp_write_bytes_to_dpcd(
> dp, DP_TRAINING_LANE0_SET, lane_count,
> dp->link_train.training_lane);
> if (retval)
> @@ -562,7 +554,7 @@ static int exynos_dp_process_clock_recovery(struct exynos_dp_device *dp)
> return retval;
> }
>
> -static int exynos_dp_process_equalizer_training(struct exynos_dp_device *dp)
> +static int analogix_dp_process_equalizer_training(struct analogix_dp_device *dp)
> {
> int lane, lane_count, retval;
> u32 reg;
> @@ -572,46 +564,46 @@ static int exynos_dp_process_equalizer_training(struct exynos_dp_device *dp)
>
> lane_count = dp->link_train.lane_count;
>
> - retval = exynos_dp_read_bytes_from_dpcd(dp, DP_LANE0_1_STATUS,
> - 2, link_status);
> + retval = analogix_dp_read_bytes_from_dpcd(dp, DP_LANE0_1_STATUS,
> + 2, link_status);
> if (retval)
> return retval;
>
> - if (exynos_dp_clock_recovery_ok(link_status, lane_count)) {
> - exynos_dp_reduce_link_rate(dp);
> + if (analogix_dp_clock_recovery_ok(link_status, lane_count)) {
> + analogix_dp_reduce_link_rate(dp);
> return -EIO;
> }
>
> - retval = exynos_dp_read_bytes_from_dpcd(dp, DP_ADJUST_REQUEST_LANE0_1,
> - 2, adjust_request);
> + retval = analogix_dp_read_bytes_from_dpcd(dp, DP_ADJUST_REQUEST_LANE0_1,
> + 2, adjust_request);
> if (retval)
> return retval;
>
> - retval = exynos_dp_read_byte_from_dpcd(
> + retval = analogix_dp_read_byte_from_dpcd(
> dp, DP_LANE_ALIGN_STATUS_UPDATED, &link_align);
> if (retval)
> return retval;
>
> - exynos_dp_get_adjust_training_lane(dp, adjust_request);
> + analogix_dp_get_adjust_training_lane(dp, adjust_request);
>
> - if (!exynos_dp_channel_eq_ok(link_status, link_align, lane_count)) {
> + if (!analogix_dp_channel_eq_ok(link_status, link_align, lane_count)) {
> /* traing pattern Set to Normal */
> - exynos_dp_training_pattern_dis(dp);
> + analogix_dp_training_pattern_dis(dp);
>
> dev_info(dp->dev, "Link Training success!\n");
>
> - exynos_dp_get_link_bandwidth(dp, ®);
> + analogix_dp_get_link_bandwidth(dp, ®);
> dp->link_train.link_rate = reg;
> dev_dbg(dp->dev, "final bandwidth = %.2x\n",
> dp->link_train.link_rate);
>
> - exynos_dp_get_lane_count(dp, ®);
> + analogix_dp_get_lane_count(dp, ®);
> dp->link_train.lane_count = reg;
> dev_dbg(dp->dev, "final lane count = %.2x\n",
> dp->link_train.lane_count);
>
> /* set enhanced mode if available */
> - exynos_dp_set_enhanced_mode(dp);
> + analogix_dp_set_enhanced_mode(dp);
> dp->link_train.lt_state = FINISHED;
>
> return 0;
> @@ -622,23 +614,23 @@ static int exynos_dp_process_equalizer_training(struct exynos_dp_device *dp)
>
> if (dp->link_train.eq_loop > MAX_EQ_LOOP) {
> dev_err(dp->dev, "EQ Max loop\n");
> - exynos_dp_reduce_link_rate(dp);
> + analogix_dp_reduce_link_rate(dp);
> return -EIO;
> }
>
> for (lane = 0; lane < lane_count; lane++)
> - exynos_dp_set_lane_link_training(
> + analogix_dp_set_lane_link_training(
> dp, dp->link_train.training_lane[lane], lane);
>
> - retval = exynos_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
> - lane_count,
> - dp->link_train.training_lane);
> + retval = analogix_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
> + lane_count,
> + dp->link_train.training_lane);
>
> return retval;
> }
>
> -static void exynos_dp_get_max_rx_bandwidth(struct exynos_dp_device *dp,
> - u8 *bandwidth)
> +static void analogix_dp_get_max_rx_bandwidth(struct analogixdp_device *dp,
> + u8 *bandwidth)
> {
> u8 data;
>
> @@ -646,12 +638,12 @@ static void exynos_dp_get_max_rx_bandwidth(struct exynos_dp_device *dp,
> * For DP rev.1.1, Maximum link rate of Main Link lanes
> * 0x06 = 1.62 Gbps, 0x0a = 2.7 Gbps
> */
> - exynos_dp_read_byte_from_dpcd(dp, DP_MAX_LINK_RATE, &data);
> + analogix_dp_read_byte_from_dpcd(dp, DP_MAX_LINK_RATE, &data);
> *bandwidth = data;
> }
>
> -static void exynos_dp_get_max_rx_lane_count(struct exynos_dp_device *dp,
> - u8 *lane_count)
> +static void analogix_dp_get_max_rx_lane_count(struct analogixdp_device *dp,
> + u8 *lane_count)
> {
> u8 data;
>
> @@ -659,23 +651,23 @@ static void exynos_dp_get_max_rx_lane_count(struct exynos_dp_device *dp,
> * For DP rev.1.1, Maximum number of Main Link lanes
> * 0x01 = 1 lane, 0x02 = 2 lanes, 0x04 = 4 lanes
> */
> - exynos_dp_read_byte_from_dpcd(dp, DP_MAX_LANE_COUNT, &data);
> + analogix_dp_read_byte_from_dpcd(dp, DP_MAX_LANE_COUNT, &data);
> *lane_count = DPCD_MAX_LANE_COUNT(data);
> }
>
> -static void exynos_dp_init_training(struct exynos_dp_device *dp,
> - enum link_lane_count_type max_lane,
> - enum link_rate_type max_rate)
> +static void analogix_dp_init_training(struct analogixdp_device *dp,
> + enum link_lane_count_type max_lane,
> + enum link_rate_type max_rate)
> {
> /*
> * MACRO_RST must be applied after the PLL_LOCK to avoid
> * the DP inter pair skew issue for at least 10 us
> */
> - exynos_dp_reset_macro(dp);
> + analogix_dp_reset_macro(dp);
>
> /* Initialize by reading RX's DPCD */
> - exynos_dp_get_max_rx_bandwidth(dp, &dp->link_train.link_rate);
> - exynos_dp_get_max_rx_lane_count(dp, &dp->link_train.lane_count);
> + analogix_dp_get_max_rx_bandwidth(dp, &dp->link_train.link_rate);
> + analogix_dp_get_max_rx_lane_count(dp, &dp->link_train.lane_count);
>
> if ((dp->link_train.link_rate != LINK_RATE_1_62GBPS) &&
> (dp->link_train.link_rate != LINK_RATE_2_70GBPS)) {
> @@ -697,10 +689,10 @@ static void exynos_dp_init_training(struct exynos_dp_device *dp,
> dp->link_train.link_rate = max_rate;
>
> /* All DP analog module power up */
> - exynos_dp_set_analog_power_down(dp, POWER_ALL, 0);
> + analogix_dp_set_analog_power_down(dp, POWER_ALL, 0);
> }
>
> -static int exynos_dp_sw_link_training(struct exynos_dp_device *dp)
> +static int analogix_dp_sw_link_training(struct analogix_dp_device *dp)
> {
> int retval = 0, training_finished = 0;
>
> @@ -710,17 +702,17 @@ static int exynos_dp_sw_link_training(struct exynos_dp_device *dp)
> while (!retval && !training_finished) {
> switch (dp->link_train.lt_state) {
> case START:
> - retval = exynos_dp_link_start(dp);
> + retval = analogix_dp_link_start(dp);
> if (retval)
> dev_err(dp->dev, "LT link start failed!\n");
> break;
> case CLOCK_RECOVERY:
> - retval = exynos_dp_process_clock_recovery(dp);
> + retval = analogix_dp_process_clock_recovery(dp);
> if (retval)
> dev_err(dp->dev, "LT CR failed!\n");
> break;
> case EQUALIZER_TRAINING:
> - retval = exynos_dp_process_equalizer_training(dp);
> + retval = analogix_dp_process_equalizer_training(dp);
> if (retval)
> dev_err(dp->dev, "LT EQ failed!\n");
> break;
> @@ -737,15 +729,15 @@ static int exynos_dp_sw_link_training(struct exynos_dp_device *dp)
> return retval;
> }
>
> -static int exynos_dp_set_link_train(struct exynos_dp_device *dp,
> - u32 count, u32 bwtype)
> +static int analogix_dp_set_link_train(struct analogixdp_device *dp,
> + u32 count, u32 bwtype)
> {
> int i;
> int retval;
>
> for (i = 0; i < DP_TIMEOUT_LOOP_COUNT; i++) {
> - exynos_dp_init_training(dp, count, bwtype);
> - retval = exynos_dp_sw_link_training(dp);
> + analogix_dp_init_training(dp, count, bwtype);
> + retval = analogix_dp_sw_link_training(dp);
> if (retval == 0)
> break;
>
> @@ -755,24 +747,24 @@ static int exynos_dp_set_link_train(struct exynos_dp_device *dp,
> return retval;
> }
>
> -static int exynos_dp_config_video(struct exynos_dp_device *dp)
> +static int analogix_dp_config_video(struct analogix_dp_device *dp)
> {
> int retval = 0;
> int timeout_loop = 0;
> int done_count = 0;
>
> - exynos_dp_config_video_slave_mode(dp);
> + analogix_dp_config_video_slave_mode(dp);
>
> - exynos_dp_set_video_color_format(dp);
> + analogix_dp_set_video_color_format(dp);
>
> - if (exynos_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
> + if (analogix_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
> dev_err(dp->dev, "PLL is not locked yet.\n");
> return -EINVAL;
> }
>
> for (;;) {
> timeout_loop++;
> - if (exynos_dp_is_slave_video_stream_clock_on(dp) == 0)
> + if (analogix_dp_is_slave_video_stream_clock_on(dp) == 0)
> break;
> if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
> dev_err(dp->dev, "Timeout of video streamclk ok\n");
> @@ -783,25 +775,25 @@ static int exynos_dp_config_video(struct exynos_dp_device *dp)
> }
>
> /* Set to use the register calculated M/N video */
> - exynos_dp_set_video_cr_mn(dp, CALCULATED_M, 0, 0);
> + analogix_dp_set_video_cr_mn(dp, CALCULATED_M, 0, 0);
>
> /* For video bist, Video timing must be generated by register */
> - exynos_dp_set_video_timing_mode(dp, VIDEO_TIMING_FROM_CAPTURE);
> + analogix_dp_set_video_timing_mode(dp, VIDEO_TIMING_FROM_CAPTURE);
>
> /* Disable video mute */
> - exynos_dp_enable_video_mute(dp, 0);
> + analogix_dp_enable_video_mute(dp, 0);
>
> /* Configure video slave mode */
> - exynos_dp_enable_video_master(dp, 0);
> + analogix_dp_enable_video_master(dp, 0);
>
> /* Enable video */
> - exynos_dp_start_video(dp);
> + analogix_dp_start_video(dp);
>
> timeout_loop = 0;
>
> for (;;) {
> timeout_loop++;
> - if (exynos_dp_is_video_stream_on(dp) == 0) {
> + if (analogix_dp_is_video_stream_on(dp) == 0) {
> done_count++;
> if (done_count > 10)
> break;
> @@ -822,45 +814,46 @@ static int exynos_dp_config_video(struct exynos_dp_device *dp)
> return retval;
> }
>
> -static void exynos_dp_enable_scramble(struct exynos_dp_device *dp, bool enable)
> +static void analogix_dp_enable_scramble(struct analogix_dp_device *dp,
> + bool enable)
> {
> u8 data;
>
> if (enable) {
> - exynos_dp_enable_scrambling(dp);
> + analogix_dp_enable_scrambling(dp);
>
> - exynos_dp_read_byte_from_dpcd(dp, DP_TRAINING_PATTERN_SET,
> - &data);
> - exynos_dp_write_byte_to_dpcd(
> - dp, DP_TRAINING_PATTERN_SET,
> - (u8)(data & ~DP_LINK_SCRAMBLING_DISABLE));
> + analogix_dp_read_byte_from_dpcd(
> + dp, DP_TRAINING_PATTERN_SET, &data);
> + analogix_dp_write_byte_to_dpcd(
> + dp, DP_TRAINING_PATTERN_SET,
> + (u8)(data & ~DP_LINK_SCRAMBLING_DISABLE));
> } else {
> - exynos_dp_disable_scrambling(dp);
> + analogix_dp_disable_scrambling(dp);
>
> - exynos_dp_read_byte_from_dpcd(dp, DP_TRAINING_PATTERN_SET,
> - &data);
> - exynos_dp_write_byte_to_dpcd(
> + analogix_dp_read_byte_from_dpcd(dp, DP_TRAINING_PATTERN_SET,
> + &data);
> + analogix_dp_write_byte_to_dpcd(
> dp, DP_TRAINING_PATTERN_SET,
> (u8)(data | DP_LINK_SCRAMBLING_DISABLE));
> }
> }
>
> -static irqreturn_t exynos_dp_irq_handler(int irq, void *arg)
> +static irqreturn_t analogix_dp_irq_handler(int irq, void *arg)
> {
> - struct exynos_dp_device *dp = arg;
> + struct analogix_dp_device *dp = arg;
>
> enum dp_irq_type irq_type;
>
> - irq_type = exynos_dp_get_irq_type(dp);
> + irq_type = analogix_dp_get_irq_type(dp);
> switch (irq_type) {
> case DP_IRQ_TYPE_HP_CABLE_IN:
> dev_dbg(dp->dev, "Received irq - cable in\n");
> schedule_work(&dp->hotplug_work);
> - exynos_dp_clear_hotplug_interrupts(dp);
> + analogix_dp_clear_hotplug_interrupts(dp);
> break;
> case DP_IRQ_TYPE_HP_CABLE_OUT:
> dev_dbg(dp->dev, "Received irq - cable out\n");
> - exynos_dp_clear_hotplug_interrupts(dp);
> + analogix_dp_clear_hotplug_interrupts(dp);
> break;
> case DP_IRQ_TYPE_HP_CHANGE:
> /*
> @@ -869,7 +862,7 @@ static irqreturn_t exynos_dp_irq_handler(int irq, void *arg)
> * only handle cable changes.
> */
> dev_dbg(dp->dev, "Received irq - hotplug change; ignoring.\n");
> - exynos_dp_clear_hotplug_interrupts(dp);
> + analogix_dp_clear_hotplug_interrupts(dp);
> break;
> default:
> dev_err(dp->dev, "Received irq - unknown type!\n");
> @@ -878,94 +871,93 @@ static irqreturn_t exynos_dp_irq_handler(int irq, void *arg)
> return IRQ_HANDLED;
> }
>
> -static void exynos_dp_hotplug(struct work_struct *work)
> +static void analogix_dp_hotplug(struct work_struct *work)
> {
> - struct exynos_dp_device *dp;
> + struct analogix_dp_device *dp;
>
> - dp = container_of(work, struct exynos_dp_device, hotplug_work);
> + dp = container_of(work, struct analogix_dp_device, hotplug_work);
>
> if (dp->drm_dev)
> drm_helper_hpd_irq_event(dp->drm_dev);
> }
>
> -static void exynos_dp_commit(struct exynos_drm_display *display)
> +static void analogix_dp_commit(struct analogix_dp_device *dp)
> {
> - struct exynos_dp_device *dp = display_to_dp(display);
> int ret;
>
> /* Keep the panel disabled while we configure video */
> - if (dp->panel) {
> - if (drm_panel_disable(dp->panel))
> + if (dp->plat_data && dp->plat_data->panel) {
> + if (drm_panel_disable(dp->plat_data->panel))
> DRM_ERROR("failed to disable the panel\n");
> }
>
> - ret = exynos_dp_detect_hpd(dp);
> + ret = analogix_dp_detect_hpd(dp);
> if (ret) {
> /* Cable has been disconnected, we're done */
> return;
> }
>
> - ret = exynos_dp_handle_edid(dp);
> + ret = analogix_dp_handle_edid(dp);
> if (ret) {
> dev_err(dp->dev, "unable to handle edid\n");
> return;
> }
>
> - ret = exynos_dp_set_link_train(dp, dp->video_info->lane_count,
> - dp->video_info->link_rate);
> + ret = analogix_dp_set_link_train(dp, dp->video_info->lane_count,
> + dp->video_info->link_rate);
> if (ret) {
> dev_err(dp->dev, "unable to do link train\n");
> return;
> }
>
> - exynos_dp_enable_scramble(dp, 1);
> - exynos_dp_enable_rx_to_enhanced_mode(dp, 1);
> - exynos_dp_enable_enhanced_mode(dp, 1);
> + analogix_dp_enable_scramble(dp, 1);
> + analogix_dp_enable_rx_to_enhanced_mode(dp, 1);
> + analogix_dp_enable_enhanced_mode(dp, 1);
>
> - exynos_dp_set_lane_count(dp, dp->video_info->lane_count);
> - exynos_dp_set_link_bandwidth(dp, dp->video_info->link_rate);
> + analogix_dp_set_lane_count(dp, dp->video_info->lane_count);
> + analogix_dp_set_link_bandwidth(dp, dp->video_info->link_rate);
>
> - exynos_dp_init_video(dp);
> - ret = exynos_dp_config_video(dp);
> + analogix_dp_init_video(dp);
> + ret = analogix_dp_config_video(dp);
> if (ret)
> dev_err(dp->dev, "unable to config video\n");
>
> /* Safe to enable the panel now */
> - if (dp->panel) {
> - if (drm_panel_enable(dp->panel))
> + if (dp->plat_data && dp->plat_data->panel) {
> + if (drm_panel_enable(dp->plat_data->panel))
> DRM_ERROR("failed to enable the panel\n");
> }
> }
>
> -static enum drm_connector_status exynos_dp_detect(
> +static enum drm_connector_status analogix_dp_detect(
> struct drm_connector *connector, bool force)
> {
> return connector_status_connected;
> }
>
> -static void exynos_dp_connector_destroy(struct drm_connector *connector)
> +static void analogix_dp_connector_destroy(struct drm_connector *connector)
> {
> drm_connector_unregister(connector);
> drm_connector_cleanup(connector);
> }
>
> -static struct drm_connector_funcs exynos_dp_connector_funcs = {
> +static struct drm_connector_funcs analogix_dp_connector_funcs = {
> .dpms = drm_atomic_helper_connector_dpms,
> .fill_modes = drm_helper_probe_single_connector_modes,
> - .detect = exynos_dp_detect,
> - .destroy = exynos_dp_connector_destroy,
> + .detect = analogix_dp_detect,
> + .destroy = analogix_dp_connector_destroy,
> .reset = drm_atomic_helper_connector_reset,
> .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
> .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
> };
>
> -static int exynos_dp_get_modes(struct drm_connector *connector)
> +static int analogix_dp_get_modes(struct drm_connector *connector)
> {
> - struct exynos_dp_device *dp = ctx_from_connector(connector);
> + struct analogix_dp_device *dp = connector_to_dp(connector);
> struct drm_display_mode *mode;
>
> - if (dp->panel)
> - return drm_panel_get_modes(dp->panel);
> + if (dp->plat_data && dp->plat_data->panel)
> + return drm_panel_get_modes(dp->plat_data->panel);
>
> mode = drm_mode_create(connector->dev);
> if (!mode) {
> @@ -986,64 +978,60 @@ static int exynos_dp_get_modes(struct drm_connector *connector)
> return 1;
> }
>
> -static struct drm_encoder *exynos_dp_best_encoder(
> +static struct drm_encoder *analogix_dp_best_encoder(
> struct drm_connector *connector)
> {
> - struct exynos_dp_device *dp = ctx_from_connector(connector);
> + struct analogix_dp_device *dp = connector_to_dp(connector);
>
> return dp->encoder;
> }
>
> -static struct drm_connector_helper_funcs exynos_dp_connector_helper_funcs = {
> - .get_modes = exynos_dp_get_modes,
> - .best_encoder = exynos_dp_best_encoder,
> +static struct drm_connector_helper_funcs analogix_dp_connector_helper_funcs = {
> + .get_modes = analogix_dp_get_modes,
> + .best_encoder = analogix_dp_best_encoder,
> };
>
> -static void exynos_dp_phy_init(struct exynos_dp_device *dp)
> +static void analogix_dp_phy_init(struct analogix_dp_device *dp)
> {
> if (dp->phy)
> phy_power_on(dp->phy);
> }
>
> -static void exynos_dp_phy_exit(struct exynos_dp_device *dp)
> +static void analogix_dp_phy_exit(struct analogix_dp_device *dp)
> {
> if (dp->phy)
> phy_power_off(dp->phy);
> }
>
> -static void exynos_dp_poweron(struct exynos_dp_device *dp)
> +static void analogix_dp_poweron(struct analogix_dp_device *dp)
> {
> - struct exynos_drm_crtc *crtc = dp_to_crtc(dp);
> -
> if (dp->dpms_mode == DRM_MODE_DPMS_ON)
> return;
>
> - if (dp->panel) {
> - if (drm_panel_prepare(dp->panel)) {
> + if (dp->plat_data && dp->plat_data->panel) {
> + if (drm_panel_prepare(dp->plat_data->panel)) {
> DRM_ERROR("failed to setup the panel\n");
> return;
> }
> }
>
> - if (crtc->ops->clock_enable)
> - crtc->ops->clock_enable(dp_to_crtc(dp), true);
> + if (dp->plat_data && dp->plat_data->power_on)
> + dp->plat_data->power_on(dp->plat_data);
>
> clk_prepare_enable(dp->clock);
> - exynos_dp_phy_init(dp);
> - exynos_dp_init_dp(dp);
> + analogix_dp_phy_init(dp);
> + analogix_dp_init_dp(dp);
> enable_irq(dp->irq);
> - exynos_dp_commit(&dp->display);
> + analogix_dp_commit(dp);
> }
>
> -static void exynos_dp_poweroff(struct exynos_dp_device *dp)
> +static void analogix_dp_poweroff(struct analogix_dp_device *dp)
> {
> - struct exynos_drm_crtc *crtc = dp_to_crtc(dp);
> -
> if (dp->dpms_mode != DRM_MODE_DPMS_ON)
> return;
>
> - if (dp->panel) {
> - if (drm_panel_disable(dp->panel)) {
> + if (dp->plat_data && dp->plat_data->panel) {
> + if (drm_panel_disable(dp->plat_data->panel)) {
> DRM_ERROR("failed to disable the panel\n");
> return;
> }
> @@ -1051,39 +1039,21 @@ static void exynos_dp_poweroff(struct exynos_dp_device *dp)
>
> disable_irq(dp->irq);
> flush_work(&dp->hotplug_work);
> - exynos_dp_phy_exit(dp);
> + analogix_dp_phy_exit(dp);
> clk_disable_unprepare(dp->clock);
>
> - if (crtc->ops->clock_enable)
> - crtc->ops->clock_enable(dp_to_crtc(dp), false);
> + if (dp->plat_data && dp->plat_data->power_off)
> + dp->plat_data->power_off(dp->plat_data);
>
> - if (dp->panel) {
> - if (drm_panel_unprepare(dp->panel))
> + if (dp->plat_data && dp->plat_data->panel) {
> + if (drm_panel_unprepare(dp->plat_data->panel))
> DRM_ERROR("failed to turnoff the panel\n");
> }
> }
>
> -/* returns the number of bridges attached */
> -static int exynos_drm_attach_lcd_bridge(struct exynos_dp_device *dp,
> - struct drm_encoder *encoder)
> -{
> - int ret;
> -
> - dp->bridge->next = dp->ptn_bridge;
> - dp->bridge->encoder = encoder;
> - ret = drm_bridge_attach(encoder->dev, dp->bridge);
> - if (ret) {
> - DRM_ERROR("Failed to attach ptn bridge to drm\n");
> - return ret;
> - }
> -
> - return 0;
> -}
> -
> -static int exynos_dp_bridge_attach(struct drm_bridge *bridge)
> +static int analogix_dp_bridge_attach(struct drm_bridge *bridge)
> {
> -
> - struct exynos_dp_device *dp = bridge->driver_private;
> + struct analogix_dp_device *dp = bridge->driver_private;
> struct drm_encoder *encoder = dp->encoder;
> struct drm_connector *connector = &dp->connector;
> int ret;
> @@ -1095,66 +1065,77 @@ static int exynos_dp_bridge_attach(struct drm_bridge *bridge)
>
> encoder->bridge = bridge;
>
> - /* Pre-empt DP connector creation if there's a bridge */
> - if (dp->ptn_bridge) {
> - ret = exynos_drm_attach_lcd_bridge(dp, encoder);
> - if (ret)
> - return -ENODEV;
> - }
> -
> connector->polled = DRM_CONNECTOR_POLL_HPD;
>
> ret = drm_connector_init(dp->drm_dev, connector,
> - &exynos_dp_connector_funcs, DRM_MODE_CONNECTOR_eDP);
> + &analogix_dp_connector_funcs,
> + DRM_MODE_CONNECTOR_eDP);
> if (ret) {
> DRM_ERROR("Failed to initialize connector with drm\n");
> return ret;
> }
>
> - drm_connector_helper_add(connector, &exynos_dp_connector_helper_funcs);
> + drm_connector_helper_add(connector,
> + &analogix_dp_connector_helper_funcs);
> drm_connector_register(connector);
> drm_mode_connector_attach_encoder(connector, encoder);
>
> - if (dp->panel)
> - ret = drm_panel_attach(dp->panel, &dp->connector);
> + if (dp->plat_data && dp->plat_data->panel) {
> + ret = drm_panel_attach(dp->plat_data->panel, &dp->connector);
> + if (ret) {
> + DRM_ERROR("Failed to attach panel\n");
> + return ret;
> + }
> + }
> +
> + /*
> + * This should be the end of attach function, caused
> + * we should ensure dp bridge could attach first.
> + */
> + if (dp->plat_data && dp->plat_data->attach) {
> + ret = dp->plat_data->attach(dp->plat_data, bridge);
> + if (ret) {
> + DRM_ERROR("Failed at platform attch func\n");
> + return ret;
> + }
> + }
>
> - return ret;
> + return 0;
> }
>
> -static void exynos_dp_bridge_nop(struct drm_bridge *bridge)
> +static void analogix_dp_bridge_nop(struct drm_bridge *bridge)
> {
> /* do nothing */
> }
>
> -static void exynos_dp_bridge_enable(struct drm_bridge *bridge)
> +static void analogix_dp_bridge_enable(struct drm_bridge *bridge)
> {
> - struct exynos_dp_device *dp = bridge->driver_private;
> + struct analogix_dp_device *dp = bridge->driver_private;
>
> - exynos_dp_poweron(dp);
> + analogix_dp_poweron(dp);
> dp->dpms_mode = DRM_MODE_DPMS_ON;
> }
>
> -static void exynos_dp_bridge_disable(struct drm_bridge *bridge)
> +static void analogix_dp_bridge_disable(struct drm_bridge *bridge)
> {
> - struct exynos_dp_device *dp = bridge->driver_private;
> + struct analogix_dp_device *dp = bridge->driver_private;
>
> - exynos_dp_poweroff(dp);
> + analogix_dp_poweroff(dp);
> dp->dpms_mode = DRM_MODE_DPMS_OFF;
> }
>
> -static const struct drm_bridge_funcs exynos_dp_bridge_funcs = {
> - .enable = exynos_dp_bridge_enable,
> - .disable = exynos_dp_bridge_disable,
> - .pre_enable = exynos_dp_bridge_nop,
> - .post_disable = exynos_dp_bridge_nop,
> - .attach = exynos_dp_bridge_attach,
> +static const struct drm_bridge_funcs analogix_dp_bridge_funcs = {
> + .enable = analogix_dp_bridge_enable,
> + .disable = analogix_dp_bridge_disable,
> + .pre_enable = analogix_dp_bridge_nop,
> + .post_disable = analogix_dp_bridge_nop,
> + .attach = analogix_dp_bridge_attach,
> };
>
> -static int exynos_dp_create_connector(struct exynos_drm_display *display,
> - struct drm_encoder *encoder)
> +static int analogix_dp_bridge_register(struct drm_device *drm_dev,
> + struct analogix_dp_device *dp)
> +
> {
> - struct exynos_dp_device *dp = display_to_dp(display);
> - struct drm_device *drm_dev = dp->drm_dev;
> struct drm_bridge *bridge;
> int ret;
>
> @@ -1165,11 +1146,10 @@ static int exynos_dp_create_connector(struct exynos_drm_display *display,
> }
>
> dp->bridge = bridge;
> - dp->encoder = encoder;
>
> bridge->driver_private = dp;
> bridge->encoder = dp->encoder;
> - bridge->funcs = &exynos_dp_bridge_funcs;
> + bridge->funcs = &analogix_dp_bridge_funcs;
>
> ret = drm_bridge_attach(drm_dev, bridge);
> if (ret) {
> @@ -1180,18 +1160,7 @@ static int exynos_dp_create_connector(struct exynos_drm_display *display,
> return 0;
> }
>
> -static void exynos_dp_dpms(struct exynos_drm_display *display, int mode)
> -{
> - /* do nothing */
> -}
> -
> -static struct exynos_drm_display_ops exynos_dp_display_ops = {
> - .create_connector = exynos_dp_create_connector,
> - .dpms = exynos_dp_dpms,
> - .commit = exynos_dp_commit,
> -};
> -
> -static struct video_info *exynos_dp_dt_parse_pdata(struct device *dev)
> +static struct video_info *analogix_dp_dt_parse_pdata(struct device *dev)
> {
> struct device_node *dp_node = dev->of_node;
> struct video_info *dp_video_config;
> @@ -1249,7 +1218,7 @@ static struct video_info *exynos_dp_dt_parse_pdata(struct device *dev)
> return dp_video_config;
> }
>
> -static int exynos_dp_dt_parse_panel(struct exynos_dp_device *dp)
> +static int analogix_dp_dt_parse_panel(struct analogix_dp_device *dp)
> {
> int ret;
>
> @@ -1262,19 +1231,33 @@ static int exynos_dp_dt_parse_panel(struct exynos_dp_device *dp)
> return 0;
> }
>
> -static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
> +int analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,
> + struct drm_encoder *encoder,
> + struct analogix_dp_plat_data *plat_data)
> {
> - struct exynos_dp_device *dp = dev_get_drvdata(dev);
> struct platform_device *pdev = to_platform_device(dev);
> - struct drm_device *drm_dev = data;
> + struct analogix_dp_device *dp;
> struct resource *res;
> unsigned int irq_flags;
> int ret = 0;
>
> + dp = devm_kzalloc(dev, sizeof(struct analogix_dp_device), GFP_KERNEL);
> + if (!dp)
> + return -ENOMEM;
> +
> + dev_set_drvdata(dev, dp);
> +
> dp->dev = &pdev->dev;
> dp->dpms_mode = DRM_MODE_DPMS_OFF;
>
> - dp->video_info = exynos_dp_dt_parse_pdata(&pdev->dev);
> + /*
> + * platform dp driver need containor_of the plat_data to get
> + * the driver private data, so we need to store the point of
> + * plat_data, not the context of plat_data.
> + */
> + dp->plat_data = plat_data;
> +
> + dp->video_info = analogix_dp_dt_parse_pdata(&pdev->dev);
> if (IS_ERR(dp->video_info))
> return PTR_ERR(dp->video_info);
>
> @@ -1294,8 +1277,8 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
> }
> }
>
> - if (!dp->panel && !dp->ptn_bridge) {
> - ret = exynos_dp_dt_parse_panel(dp);
> + if (!dp->plat_data || !dp->plat_data->panel) {
> + ret = analogix_dp_dt_parse_panel(dp);
> if (ret)
> return ret;
> }
> @@ -1343,14 +1326,14 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void
> *data)
> return -ENODEV;
> }
>
> - INIT_WORK(&dp->hotplug_work, exynos_dp_hotplug);
> + INIT_WORK(&dp->hotplug_work, analogix_dp_hotplug);
>
> - exynos_dp_phy_init(dp);
> + analogix_dp_phy_init(dp);
>
> - exynos_dp_init_dp(dp);
> + analogix_dp_init_dp(dp);
>
> - ret = devm_request_irq(&pdev->dev, dp->irq, exynos_dp_irq_handler,
> - irq_flags, "exynos-dp", dp);
> + ret = devm_request_irq(&pdev->dev, dp->irq, analogix_dp_irq_handler,
> + irq_flags, "analogix-dp", dp);
> if (ret) {
> dev_err(&pdev->dev, "failed to request irq\n");
> return ret;
> @@ -1358,109 +1341,39 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void
> *data)
> disable_irq(dp->irq);
>
> dp->drm_dev = drm_dev;
> + dp->encoder = encoder;
>
> - return exynos_drm_create_enc_conn(drm_dev, &dp->display);
> -}
> -
> -static void exynos_dp_unbind(struct device *dev, struct device *master,
> - void *data)
> -{
> - struct exynos_dp_device *dp = dev_get_drvdata(dev);
> -
> - exynos_dp_bridge_disable(dp->bridge);
> -}
> -
> -static const struct component_ops exynos_dp_ops = {
> - .bind = exynos_dp_bind,
> - .unbind = exynos_dp_unbind,
> -};
> -
> -static int exynos_dp_probe(struct platform_device *pdev)
> -{
> - struct device *dev = &pdev->dev;
> - struct device_node *panel_node, *bridge_node, *endpoint;
> - struct exynos_dp_device *dp;
> -
> - dp = devm_kzalloc(&pdev->dev, sizeof(struct exynos_dp_device),
> - GFP_KERNEL);
> - if (!dp)
> - return -ENOMEM;
> -
> - dp->display.type = EXYNOS_DISPLAY_TYPE_LCD;
> - dp->display.ops = &exynos_dp_display_ops;
> - platform_set_drvdata(pdev, dp);
> -
> - panel_node = of_parse_phandle(dev->of_node, "panel", 0);
> - if (panel_node) {
> - dp->panel = of_drm_find_panel(panel_node);
> - of_node_put(panel_node);
> - if (!dp->panel)
> - return -EPROBE_DEFER;
> - }
> -
> - endpoint = of_graph_get_next_endpoint(dev->of_node, NULL);
> - if (endpoint) {
> - bridge_node = of_graph_get_remote_port_parent(endpoint);
> - if (bridge_node) {
> - dp->ptn_bridge = of_drm_find_bridge(bridge_node);
> - of_node_put(bridge_node);
> - if (!dp->ptn_bridge)
> - return -EPROBE_DEFER;
> - } else {
> - return -EPROBE_DEFER;
> - }
> - }
> -
> - return component_add(&pdev->dev, &exynos_dp_ops);
> + return analogix_dp_bridge_register(drm_dev, dp);
> }
> +EXPORT_SYMBOL_GPL(analogix_dp_bind);
>
> -static int exynos_dp_remove(struct platform_device *pdev)
> +void analogix_dp_unbind(struct device *dev, struct device *master, void *data)
> {
> - component_del(&pdev->dev, &exynos_dp_ops);
> + struct analogix_dp_device *dp = dev_get_drvdata(dev);
>
> - return 0;
> + analogix_dp_bridge_disable(dp->bridge);
> }
> +EXPORT_SYMBOL_GPL(analogix_dp_unbind);
>
> -#ifdef CONFIG_PM_SLEEP
> -static int exynos_dp_suspend(struct device *dev)
> +int analogix_dp_suspend(struct device *dev)
> {
> - struct exynos_dp_device *dp = dev_get_drvdata(dev);
> + struct analogix_dp_device *dp = dev_get_drvdata(dev);
>
> - exynos_dp_bridge_disable(dp->bridge);
> + analogix_dp_bridge_disable(dp->bridge);
> return 0;
> }
> +EXPORT_SYMBOL_GPL(analogix_dp_suspend);
>
> -static int exynos_dp_resume(struct device *dev)
> +int analogix_dp_resume(struct device *dev)
> {
> - struct exynos_dp_device *dp = dev_get_drvdata(dev);
> + struct analogix_dp_device *dp = dev_get_drvdata(dev);
>
> - exynos_dp_bridge_enable(dp->bridge);
> + analogix_dp_bridge_enable(dp->bridge);
> return 0;
> }
> -#endif
> -
> -static const struct dev_pm_ops exynos_dp_pm_ops = {
> - SET_SYSTEM_SLEEP_PM_OPS(exynos_dp_suspend, exynos_dp_resume)
> -};
> -
> -static const struct of_device_id exynos_dp_match[] = {
> - { .compatible = "samsung,exynos5-dp" },
> - {},
> -};
> -MODULE_DEVICE_TABLE(of, exynos_dp_match);
> -
> -struct platform_driver dp_driver = {
> - .probe = exynos_dp_probe,
> - .remove = exynos_dp_remove,
> - .driver = {
> - .name = "exynos-dp",
> - .owner = THIS_MODULE,
> - .pm = &exynos_dp_pm_ops,
> - .of_match_table = exynos_dp_match,
> - },
> -};
> +EXPORT_SYMBOL_GPL(analogix_dp_resume);
>
> MODULE_AUTHOR("Jingoo Han <[email protected]>");
> MODULE_AUTHOR("Yakir Yang <[email protected]>");
> -MODULE_DESCRIPTION("Samsung SoC DP Driver");
> +MODULE_DESCRIPTION("Analogix Core DP Driver");
> MODULE_LICENSE("GPL v2");
> diff --git a/drivers/gpu/drm/bridge/analogix_dp_core.h b/drivers/gpu/drm/bridge/analogix_dp_core.h
> new file mode 100644
> index 0000000..fe72695
> --- /dev/null
> +++ b/drivers/gpu/drm/bridge/analogix_dp_core.h
> @@ -0,0 +1,286 @@
> +/*
> + * Header file for Samsung DP (Display Port) interface driver.
> + *
> + * Copyright (C) 2012 Samsung Electronics Co., Ltd.
> + * Author: Jingoo Han <[email protected]>
> + * Yakir Yang <[email protected]>
Please don't the author 'Yakir Yang'.
This code is same with what I did. You just modified a little.
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published by the
> + * Free Software Foundation; either version 2 of the License, or (at your
> + * option) any later version.
> + */
> +
> +#ifndef _ANALOGIX_DP_CORE_H
> +#define _ANALOGIX_DP_CORE_H
> +
> +#include <drm/drm_crtc.h>
> +#include <drm/drm_dp_helper.h>
> +#include <drm/exynos_drm.h>
> +
> +#define DP_TIMEOUT_LOOP_COUNT 100
> +#define MAX_CR_LOOP 5
> +#define MAX_EQ_LOOP 5
> +
> +enum link_rate_type {
> + LINK_RATE_1_62GBPS = 0x06,
> + LINK_RATE_2_70GBPS = 0x0a
> +};
> +
> +enum link_lane_count_type {
> + LANE_COUNT1 = 1,
> + LANE_COUNT2 = 2,
> + LANE_COUNT4 = 4
> +};
> +
> +enum link_training_state {
> + START,
> + CLOCK_RECOVERY,
> + EQUALIZER_TRAINING,
> + FINISHED,
> + FAILED
> +};
> +
> +enum voltage_swing_level {
> + VOLTAGE_LEVEL_0,
> + VOLTAGE_LEVEL_1,
> + VOLTAGE_LEVEL_2,
> + VOLTAGE_LEVEL_3,
> +};
> +
> +enum pre_emphasis_level {
> + PRE_EMPHASIS_LEVEL_0,
> + PRE_EMPHASIS_LEVEL_1,
> + PRE_EMPHASIS_LEVEL_2,
> + PRE_EMPHASIS_LEVEL_3,
> +};
> +
> +enum pattern_set {
> + PRBS7,
> + D10_2,
> + TRAINING_PTN1,
> + TRAINING_PTN2,
> + DP_NONE
> +};
> +
> +enum color_space {
> + COLOR_RGB,
> + COLOR_YCBCR422,
> + COLOR_YCBCR444
> +};
> +
> +enum color_depth {
> + COLOR_6,
> + COLOR_8,
> + COLOR_10,
> + COLOR_12
> +};
> +
> +enum color_coefficient {
> + COLOR_YCBCR601,
> + COLOR_YCBCR709
> +};
> +
> +enum dynamic_range {
> + VESA,
> + CEA
> +};
> +
> +enum pll_status {
> + PLL_UNLOCKED,
> + PLL_LOCKED
> +};
> +
> +enum clock_recovery_m_value_type {
> + CALCULATED_M,
> + REGISTER_M
> +};
> +
> +enum video_timing_recognition_type {
> + VIDEO_TIMING_FROM_CAPTURE,
> + VIDEO_TIMING_FROM_REGISTER
> +};
> +
> +enum analog_power_block {
> + AUX_BLOCK,
> + CH0_BLOCK,
> + CH1_BLOCK,
> + CH2_BLOCK,
> + CH3_BLOCK,
> + ANALOG_TOTAL,
> + POWER_ALL
> +};
> +
> +enum dp_irq_type {
> + DP_IRQ_TYPE_HP_CABLE_IN,
> + DP_IRQ_TYPE_HP_CABLE_OUT,
> + DP_IRQ_TYPE_HP_CHANGE,
> + DP_IRQ_TYPE_UNKNOWN,
> +};
> +
> +struct video_info {
> + char *name;
> +
> + bool h_sync_polarity;
> + bool v_sync_polarity;
> + bool interlaced;
> +
> + enum color_space color_space;
> + enum dynamic_range dynamic_range;
> + enum color_coefficient ycbcr_coeff;
> + enum color_depth color_depth;
> +
> + enum link_rate_type link_rate;
> + enum link_lane_count_type lane_count;
> +};
> +
> +struct link_train {
> + int eq_loop;
> + int cr_loop[4];
> +
> + u8 link_rate;
> + u8 lane_count;
> + u8 training_lane[4];
> +
> + enum link_training_state lt_state;
> +};
> +
> +struct analogix_dp_device {
> + struct device *dev;
> + struct drm_device *drm_dev;
> + struct drm_connector connector;
> + struct drm_encoder *encoder;
> + struct drm_bridge *bridge;
> + struct clk *clock;
> + unsigned int irq;
> + void __iomem *reg_base;
> +
> + struct video_info *video_info;
> + struct link_train link_train;
> + struct work_struct hotplug_work;
> + struct phy *phy;
> + int dpms_mode;
> + int hpd_gpio;
> +
> + struct analogix_dp_plat_data *plat_data;
> +
> + struct exynos_drm_panel_info priv;
> +};
> +
> +/* analogix_dp_reg.c */
> +void analogix_dp_enable_video_mute(struct analogix_dp_device *dp, bool enable);
> +void analogix_dp_stop_video(struct analogix_dp_device *dp);
> +void analogix_dp_lane_swap(struct analogix_dp_device *dp, bool enable);
> +void analogix_dp_init_analog_param(struct analogix_dp_device *dp);
> +void analogix_dp_init_interrupt(struct analogix_dp_device *dp);
> +void analogix_dp_reset(struct analogix_dp_device *dp);
> +void analogix_dp_swreset(struct analogix_dp_device *dp);
> +void analogix_dp_config_interrupt(struct analogix_dp_device *dp);
> +enum pll_status analogix_dp_get_pll_lock_status(struct analogix_dp_device *dp);
> +void analogix_dp_set_pll_power_down(struct analogix_dp_device *dp, bool enable);
> +void analogix_dp_set_analog_power_down(struct analogix_dp_device *dp,
> + enum analog_power_block block,
> + bool enable);
> +void analogix_dp_init_analog_func(struct analogix_dp_device *dp);
> +void analogix_dp_init_hpd(struct analogix_dp_device *dp);
> +enum dp_irq_type analogix_dp_get_irq_type(struct analogix_dp_device *dp);
> +void analogix_dp_clear_hotplug_interrupts(struct analogix_dp_device *dp);
> +void analogix_dp_reset_aux(struct analogix_dp_device *dp);
> +void analogix_dp_init_aux(struct analogix_dp_device *dp);
> +int analogix_dp_get_plug_in_status(struct analogix_dp_device *dp);
> +void analogix_dp_enable_sw_function(struct analogix_dp_device *dp);
> +int analogix_dp_start_aux_transaction(struct analogix_dp_device *dp);
> +int analogix_dp_write_byte_to_dpcd(struct analogix_dp_device *dp,
> + unsigned int reg_addr,
> + unsigned char data);
> +int analogix_dp_read_byte_from_dpcd(struct analogix_dp_device *dp,
> + unsigned int reg_addr,
> + unsigned char *data);
> +int analogix_dp_write_bytes_to_dpcd(struct analogix_dp_device *dp,
> + unsigned int reg_addr,
> + unsigned int count,
> + unsigned char data[]);
> +int analogix_dp_read_bytes_from_dpcd(struct analogix_dp_device *dp,
> + unsigned int reg_addr,
> + unsigned int count,
> + unsigned char data[]);
> +int analogix_dp_select_i2c_device(struct analogix_dp_device *dp,
> + unsigned int device_addr,
> + unsigned int reg_addr);
> +int analogix_dp_read_byte_from_i2c(struct analogix_dp_device *dp,
> + unsigned int device_addr,
> + unsigned int reg_addr,
> + unsigned int *data);
> +int analogix_dp_read_bytes_from_i2c(struct analogix_dp_device *dp,
> + unsigned int device_addr,
> + unsigned int reg_addr,
> + unsigned int count,
> + unsigned char edid[]);
> +void analogix_dp_set_link_bandwidth(struct analogix_dp_device *dp, u32 bwtype);
> +void analogix_dp_get_link_bandwidth(struct analogix_dp_device *dp, u32 *bwtype);
> +void analogix_dp_set_lane_count(struct analogix_dp_device *dp, u32 count);
> +void analogix_dp_get_lane_count(struct analogix_dp_device *dp, u32 *count);
> +void analogix_dp_enable_enhanced_mode(struct analogix_dp_device *dp,
> + bool enable);
> +void analogix_dp_set_training_pattern(struct analogix_dp_device *dp,
> + enum pattern_set pattern);
> +void analogix_dp_set_lane0_pre_emphasis(struct analogix_dp_device *dp,
> + u32 level);
> +void analogix_dp_set_lane1_pre_emphasis(struct analogix_dp_device *dp,
> + u32 level);
> +void analogix_dp_set_lane2_pre_emphasis(struct analogix_dp_device *dp,
> + u32 level);
> +void analogix_dp_set_lane3_pre_emphasis(struct analogix_dp_device *dp,
> + u32 level);
> +void analogix_dp_set_lane0_link_training(struct analogix_dp_device *dp,
> + u32 training_lane);
> +void analogix_dp_set_lane1_link_training(struct analogix_dp_device *dp,
> + u32 training_lane);
> +void analogix_dp_set_lane2_link_training(struct analogix_dp_device *dp,
> + u32 training_lane);
> +void analogix_dp_set_lane3_link_training(struct analogix_dp_device *dp,
> + u32 training_lane);
> +u32 analogix_dp_get_lane0_link_training(struct analogix_dp_device *dp);
> +u32 analogix_dp_get_lane1_link_training(struct analogix_dp_device *dp);
> +u32 analogix_dp_get_lane2_link_training(struct analogix_dp_device *dp);
> +u32 analogix_dp_get_lane3_link_training(struct analogix_dp_device *dp);
> +void analogix_dp_reset_macro(struct analogix_dp_device *dp);
> +void analogix_dp_init_video(struct analogix_dp_device *dp);
> +
> +void analogix_dp_set_video_color_format(struct analogix_dp_device *dp);
> +int analogix_dp_is_slave_video_stream_clock_on(struct analogix_dp_device *dp);
> +void analogix_dp_set_video_cr_mn(struct analogix_dp_device *dp,
> + enum clock_recovery_m_value_type type,
> + u32 m_value, u32 n_value);
> +void analogix_dp_set_video_timing_mode(struct analogix_dp_device *dp, u32 type);
> +void analogix_dp_enable_video_master(struct analogix_dp_device *dp,
> + bool enable);
> +void analogix_dp_start_video(struct analogix_dp_device *dp);
> +int analogix_dp_is_video_stream_on(struct analogix_dp_device *dp);
> +void analogix_dp_config_video_slave_mode(struct analogix_dp_device *dp);
> +void analogix_dp_enable_scrambling(struct analogix_dp_device *dp);
> +void analogix_dp_disable_scrambling(struct analogix_dp_device *dp);
> +
> +/* I2C EDID Chip ID, Slave Address */
> +#define I2C_EDID_DEVICE_ADDR 0x50
> +#define I2C_E_EDID_DEVICE_ADDR 0x30
> +
> +#define EDID_BLOCK_LENGTH 0x80
> +#define EDID_HEADER_PATTERN 0x00
> +#define EDID_EXTENSION_FLAG 0x7e
> +#define EDID_CHECKSUM 0x7f
> +
> +/* DP_MAX_LANE_COUNT */
> +#define DPCD_ENHANCED_FRAME_CAP(x) (((x) >> 7) & 0x1)
> +#define DPCD_MAX_LANE_COUNT(x) ((x) & 0x1f)
> +
> +/* DP_LANE_COUNT_SET */
> +#define DPCD_LANE_COUNT_SET(x) ((x) & 0x1f)
> +
> +/* DP_TRAINING_LANE0_SET */
> +#define DPCD_PRE_EMPHASIS_SET(x) (((x) & 0x3) << 3)
> +#define DPCD_PRE_EMPHASIS_GET(x) (((x) >> 3) & 0x3)
> +#define DPCD_VOLTAGE_SWING_SET(x) (((x) & 0x3) << 0)
> +#define DPCD_VOLTAGE_SWING_GET(x) (((x) >> 0) & 0x3)
> +
> +#endif /* _ANALOGIX_DP_CORE_H */
> diff --git a/drivers/gpu/drm/bridge/analogix_dp_reg.c b/drivers/gpu/drm/bridge/analogix_dp_reg.c
> new file mode 100644
> index 0000000..dfbbde7
> --- /dev/null
> +++ b/drivers/gpu/drm/bridge/analogix_dp_reg.c
> @@ -0,0 +1,1266 @@
> +/*
> + * Samsung DP (Display port) register interface driver.
> + *
> + * Copyright (C) 2012 Samsung Electronics Co., Ltd.
> + * Author: Jingoo Han <[email protected]>
> + * Yakir Yang <[email protected]>
The same as above.
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published by the
> + * Free Software Foundation; either version 2 of the License, or (at your
> + * option) any later version.
> + */
> +
> +#include <linux/device.h>
> +#include <linux/io.h>
> +#include <linux/delay.h>
> +#include <linux/gpio.h>
> +
> +#include "analogix_dp_core.h"
> +#include "analogix_dp_reg.h"
> +
> +#define COMMON_INT_MASK_1 0
> +#define COMMON_INT_MASK_2 0
> +#define COMMON_INT_MASK_3 0
> +#define COMMON_INT_MASK_4 (HOTPLUG_CHG | HPD_LOST | PLUG)
> +#define INT_STA_MASK INT_HPD
> +
> +void analogix_dp_enable_video_mute(struct analogix_dp_device *dp, bool enable)
> +{
> + u32 reg;
> +
> + if (enable) {
> + reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
> + reg |= HDCP_VIDEO_MUTE;
> + writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
> + } else {
> + reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
> + reg &= ~HDCP_VIDEO_MUTE;
> + writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
> + }
> +}
> +
> +void analogix_dp_stop_video(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
> + reg &= ~VIDEO_EN;
> + writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
> +}
> +
> +void analogix_dp_lane_swap(struct analogix_dp_device *dp, bool enable)
> +{
> + u32 reg;
> +
> + if (enable)
> + reg = LANE3_MAP_LOGIC_LANE_0 | LANE2_MAP_LOGIC_LANE_1 |
> + LANE1_MAP_LOGIC_LANE_2 | LANE0_MAP_LOGIC_LANE_3;
> + else
> + reg = LANE3_MAP_LOGIC_LANE_3 | LANE2_MAP_LOGIC_LANE_2 |
> + LANE1_MAP_LOGIC_LANE_1 | LANE0_MAP_LOGIC_LANE_0;
> +
> + writel(reg, dp->reg_base + ANALOGIX_DP_LANE_MAP);
> +}
> +
> +void analogix_dp_init_analog_param(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + reg = TX_TERMINAL_CTRL_50_OHM;
> + writel(reg, dp->reg_base + ANALOGIX_DP_ANALOG_CTL_1);
> +
> + reg = SEL_24M | TX_DVDD_BIT_1_0625V;
> + writel(reg, dp->reg_base + ANALOGIX_DP_ANALOG_CTL_2);
> +
> + reg = DRIVE_DVDD_BIT_1_0625V | VCO_BIT_600_MICRO;
> + writel(reg, dp->reg_base + ANALOGIX_DP_ANALOG_CTL_3);
> +
> + reg = PD_RING_OSC | AUX_TERMINAL_CTRL_50_OHM |
> + TX_CUR1_2X | TX_CUR_16_MA;
> + writel(reg, dp->reg_base + ANALOGIX_DP_PLL_FILTER_CTL_1);
> +
> + reg = CH3_AMP_400_MV | CH2_AMP_400_MV |
> + CH1_AMP_400_MV | CH0_AMP_400_MV;
> + writel(reg, dp->reg_base + ANALOGIX_DP_TX_AMP_TUNING_CTL);
> +}
> +
> +void analogix_dp_init_interrupt(struct analogix_dp_device *dp)
> +{
> + /* Set interrupt pin assertion polarity as high */
> + writel(INT_POL1 | INT_POL0, dp->reg_base + ANALOGIX_DP_INT_CTL);
> +
> + /* Clear pending regisers */
> + writel(0xff, dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_1);
> + writel(0x4f, dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_2);
> + writel(0xe0, dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_3);
> + writel(0xe7, dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_4);
> + writel(0x63, dp->reg_base + ANALOGIX_DP_INT_STA);
> +
> + /* 0:mask,1: unmask */
> + writel(0x00, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_1);
> + writel(0x00, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_2);
> + writel(0x00, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_3);
> + writel(0x00, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_4);
> + writel(0x00, dp->reg_base + ANALOGIX_DP_INT_STA_MASK);
> +}
> +
> +void analogix_dp_reset(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + analogix_dp_stop_video(dp);
> + analogix_dp_enable_video_mute(dp, 0);
> +
> + reg = MASTER_VID_FUNC_EN_N | SLAVE_VID_FUNC_EN_N |
> + AUD_FIFO_FUNC_EN_N | AUD_FUNC_EN_N |
> + HDCP_FUNC_EN_N | SW_FUNC_EN_N;
> + writel(reg, dp->reg_base + ANALOGIX_DP_FUNC_EN_1);
> +
> + reg = SSC_FUNC_EN_N | AUX_FUNC_EN_N |
> + SERDES_FIFO_FUNC_EN_N |
> + LS_CLK_DOMAIN_FUNC_EN_N;
> + writel(reg, dp->reg_base + ANALOGIX_DP_FUNC_EN_2);
> +
> + usleep_range(20, 30);
> +
> + analogix_dp_lane_swap(dp, 0);
> +
> + writel(0x0, dp->reg_base + ANALOGIX_DP_SYS_CTL_1);
> + writel(0x40, dp->reg_base + ANALOGIX_DP_SYS_CTL_2);
> + writel(0x0, dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
> + writel(0x0, dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
> +
> + writel(0x0, dp->reg_base + ANALOGIX_DP_PKT_SEND_CTL);
> + writel(0x0, dp->reg_base + ANALOGIX_DP_HDCP_CTL);
> +
> + writel(0x5e, dp->reg_base + ANALOGIX_DP_HPD_DEGLITCH_L);
> + writel(0x1a, dp->reg_base + ANALOGIX_DP_HPD_DEGLITCH_H);
> +
> + writel(0x10, dp->reg_base + ANALOGIX_DP_LINK_DEBUG_CTL);
> +
> + writel(0x0, dp->reg_base + ANALOGIX_DP_PHY_TEST);
> +
> + writel(0x0, dp->reg_base + ANALOGIX_DP_VIDEO_FIFO_THRD);
> + writel(0x20, dp->reg_base + ANALOGIX_DP_AUDIO_MARGIN);
> +
> + writel(0x4, dp->reg_base + ANALOGIX_DP_M_VID_GEN_FILTER_TH);
> + writel(0x2, dp->reg_base + ANALOGIX_DP_M_AUD_GEN_FILTER_TH);
> +
> + writel(0x00000101, dp->reg_base + ANALOGIX_DP_SOC_GENERAL_CTL);
> +}
> +
> +void analogix_dp_swreset(struct analogix_dp_device *dp)
> +{
> + writel(RESET_DP_TX, dp->reg_base + ANALOGIX_DP_TX_SW_RESET);
> +}
> +
> +void analogix_dp_config_interrupt(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + /* 0: mask, 1: unmask */
> + reg = COMMON_INT_MASK_1;
> + writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_1);
> +
> + reg = COMMON_INT_MASK_2;
> + writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_2);
> +
> + reg = COMMON_INT_MASK_3;
> + writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_3);
> +
> + reg = COMMON_INT_MASK_4;
> + writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_4);
> +
> + reg = INT_STA_MASK;
> + writel(reg, dp->reg_base + ANALOGIX_DP_INT_STA_MASK);
> +}
> +
> +enum pll_status analogix_dp_get_pll_lock_status(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_DEBUG_CTL);
> + if (reg & PLL_LOCK)
> + return PLL_LOCKED;
> + else
> + return PLL_UNLOCKED;
> +}
> +
> +void analogix_dp_set_pll_power_down(struct analogix_dp_device *dp, bool enable)
> +{
> + u32 reg;
> +
> + if (enable) {
> + reg = readl(dp->reg_base + ANALOGIX_DP_PLL_CTL);
> + reg |= DP_PLL_PD;
> + writel(reg, dp->reg_base + ANALOGIX_DP_PLL_CTL);
> + } else {
> + reg = readl(dp->reg_base + ANALOGIX_DP_PLL_CTL);
> + reg &= ~DP_PLL_PD;
> + writel(reg, dp->reg_base + ANALOGIX_DP_PLL_CTL);
> + }
> +}
> +
> +void analogix_dp_set_analog_power_down(struct analogix_dp_device *dp,
> + enum analog_power_block block,
> + bool enable)
> +{
> + u32 reg;
> +
> + switch (block) {
> + case AUX_BLOCK:
> + if (enable) {
> + reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
> + reg |= AUX_PD;
> + writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
> + } else {
> + reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
> + reg &= ~AUX_PD;
> + writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
> + }
> + break;
> + case CH0_BLOCK:
> + if (enable) {
> + reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
> + reg |= CH0_PD;
> + writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
> + } else {
> + reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
> + reg &= ~CH0_PD;
> + writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
> + }
> + break;
> + case CH1_BLOCK:
> + if (enable) {
> + reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
> + reg |= CH1_PD;
> + writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
> + } else {
> + reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
> + reg &= ~CH1_PD;
> + writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
> + }
> + break;
> + case CH2_BLOCK:
> + if (enable) {
> + reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
> + reg |= CH2_PD;
> + writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
> + } else {
> + reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
> + reg &= ~CH2_PD;
> + writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
> + }
> + break;
> + case CH3_BLOCK:
> + if (enable) {
> + reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
> + reg |= CH3_PD;
> + writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
> + } else {
> + reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
> + reg &= ~CH3_PD;
> + writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
> + }
> + break;
> + case ANALOG_TOTAL:
> + if (enable) {
> + reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
> + reg |= DP_PHY_PD;
> + writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
> + } else {
> + reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
> + reg &= ~DP_PHY_PD;
> + writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
> + }
> + break;
> + case POWER_ALL:
> + if (enable) {
> + reg = DP_PHY_PD | AUX_PD | CH3_PD | CH2_PD |
> + CH1_PD | CH0_PD;
> + writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
> + } else {
> + writel(0x00, dp->reg_base + ANALOGIX_DP_PHY_PD);
> + }
> + break;
> + default:
> + break;
> + }
> +}
> +
> +void analogix_dp_init_analog_func(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> + int timeout_loop = 0;
> +
> + analogix_dp_set_analog_power_down(dp, POWER_ALL, 0);
> +
> + reg = PLL_LOCK_CHG;
> + writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_1);
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_DEBUG_CTL);
> + reg &= ~(F_PLL_LOCK | PLL_LOCK_CTRL);
> + writel(reg, dp->reg_base + ANALOGIX_DP_DEBUG_CTL);
> +
> + /* Power up PLL */
> + if (analogix_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
> + analogix_dp_set_pll_power_down(dp, 0);
> +
> + while (analogix_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
> + timeout_loop++;
> + if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
> + dev_err(dp->dev, "failed to get pll lock status\n");
> + return;
> + }
> + usleep_range(10, 20);
> + }
> + }
> +
> + /* Enable Serdes FIFO function and Link symbol clock domain module */
> + reg = readl(dp->reg_base + ANALOGIX_DP_FUNC_EN_2);
> + reg &= ~(SERDES_FIFO_FUNC_EN_N | LS_CLK_DOMAIN_FUNC_EN_N
> + | AUX_FUNC_EN_N);
> + writel(reg, dp->reg_base + ANALOGIX_DP_FUNC_EN_2);
> +}
> +
> +void analogix_dp_clear_hotplug_interrupts(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + if (gpio_is_valid(dp->hpd_gpio))
> + return;
> +
> + reg = HOTPLUG_CHG | HPD_LOST | PLUG;
> + writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_4);
> +
> + reg = INT_HPD;
> + writel(reg, dp->reg_base + ANALOGIX_DP_INT_STA);
> +}
> +
> +void analogix_dp_init_hpd(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + if (gpio_is_valid(dp->hpd_gpio))
> + return;
> +
> + analogix_dp_clear_hotplug_interrupts(dp);
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
> + reg &= ~(F_HPD | HPD_CTRL);
> + writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
> +}
> +
> +enum dp_irq_type analogix_dp_get_irq_type(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + if (gpio_is_valid(dp->hpd_gpio)) {
> + reg = gpio_get_value(dp->hpd_gpio);
> + if (reg)
> + return DP_IRQ_TYPE_HP_CABLE_IN;
> + else
> + return DP_IRQ_TYPE_HP_CABLE_OUT;
> + } else {
> + /* Parse hotplug interrupt status register */
> + reg = readl(dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_4);
> +
> + if (reg & PLUG)
> + return DP_IRQ_TYPE_HP_CABLE_IN;
> +
> + if (reg & HPD_LOST)
> + return DP_IRQ_TYPE_HP_CABLE_OUT;
> +
> + if (reg & HOTPLUG_CHG)
> + return DP_IRQ_TYPE_HP_CHANGE;
> +
> + return DP_IRQ_TYPE_UNKNOWN;
> + }
> +}
> +
> +void analogix_dp_reset_aux(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + /* Disable AUX channel module */
> + reg = readl(dp->reg_base + ANALOGIX_DP_FUNC_EN_2);
> + reg |= AUX_FUNC_EN_N;
> + writel(reg, dp->reg_base + ANALOGIX_DP_FUNC_EN_2);
> +}
> +
> +void analogix_dp_init_aux(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + /* Clear inerrupts related to AUX channel */
> + reg = RPLY_RECEIV | AUX_ERR;
> + writel(reg, dp->reg_base + ANALOGIX_DP_INT_STA);
> +
> + analogix_dp_reset_aux(dp);
> +
> + /* Disable AUX transaction H/W retry */
> + reg = AUX_BIT_PERIOD_EXPECTED_DELAY(3) | AUX_HW_RETRY_COUNT_SEL(0) |
> + AUX_HW_RETRY_INTERVAL_600_MICROSECONDS;
> + writel(reg, dp->reg_base + ANALOGIX_DP_AUX_HW_RETRY_CTL);
> +
> + /* Receive AUX Channel DEFER commands equal to DEFFER_COUNT*64 */
> + reg = DEFER_CTRL_EN | DEFER_COUNT(1);
> + writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_DEFER_CTL);
> +
> + /* Enable AUX channel module */
> + reg = readl(dp->reg_base + ANALOGIX_DP_FUNC_EN_2);
> + reg &= ~AUX_FUNC_EN_N;
> + writel(reg, dp->reg_base + ANALOGIX_DP_FUNC_EN_2);
> +}
> +
> +int analogix_dp_get_plug_in_status(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + if (gpio_is_valid(dp->hpd_gpio)) {
> + if (gpio_get_value(dp->hpd_gpio))
> + return 0;
> + } else {
> + reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
> + if (reg & HPD_STATUS)
> + return 0;
> + }
> +
> + return -EINVAL;
> +}
> +
> +void analogix_dp_enable_sw_function(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_FUNC_EN_1);
> + reg &= ~SW_FUNC_EN_N;
> + writel(reg, dp->reg_base + ANALOGIX_DP_FUNC_EN_1);
> +}
> +
> +int analogix_dp_start_aux_transaction(struct analogix_dp_device *dp)
> +{
> + int reg;
> + int retval = 0;
> + int timeout_loop = 0;
> +
> + /* Enable AUX CH operation */
> + reg = readl(dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_2);
> + reg |= AUX_EN;
> + writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_2);
> +
> + /* Is AUX CH command reply received? */
> + reg = readl(dp->reg_base + ANALOGIX_DP_INT_STA);
> + while (!(reg & RPLY_RECEIV)) {
> + timeout_loop++;
> + if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
> + dev_err(dp->dev, "AUX CH command reply failed!\n");
> + return -ETIMEDOUT;
> + }
> + reg = readl(dp->reg_base + ANALOGIX_DP_INT_STA);
> + usleep_range(10, 11);
> + }
> +
> + /* Clear interrupt source for AUX CH command reply */
> + writel(RPLY_RECEIV, dp->reg_base + ANALOGIX_DP_INT_STA);
> +
> + /* Clear interrupt source for AUX CH access error */
> + reg = readl(dp->reg_base + ANALOGIX_DP_INT_STA);
> + if (reg & AUX_ERR) {
> + writel(AUX_ERR, dp->reg_base + ANALOGIX_DP_INT_STA);
> + return -EREMOTEIO;
> + }
> +
> + /* Check AUX CH error access status */
> + reg = readl(dp->reg_base + ANALOGIX_DP_AUX_CH_STA);
> + if ((reg & AUX_STATUS_MASK) != 0) {
> + dev_err(dp->dev, "AUX CH error happens: %d\n\n",
> + reg & AUX_STATUS_MASK);
> + return -EREMOTEIO;
> + }
> +
> + return retval;
> +}
> +
> +int analogix_dp_write_byte_to_dpcd(struct analogix_dp_device *dp,
> + unsigned int reg_addr,
> + unsigned char data)
> +{
> + u32 reg;
> + int i;
> + int retval;
> +
> + for (i = 0; i < 3; i++) {
> + /* Clear AUX CH data buffer */
> + reg = BUF_CLR;
> + writel(reg, dp->reg_base + ANALOGIX_DP_BUFFER_DATA_CTL);
> +
> + /* Select DPCD device address */
> + reg = AUX_ADDR_7_0(reg_addr);
> + writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_7_0);
> + reg = AUX_ADDR_15_8(reg_addr);
> + writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_15_8);
> + reg = AUX_ADDR_19_16(reg_addr);
> + writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_19_16);
> +
> + /* Write data buffer */
> + reg = (unsigned int)data;
> + writel(reg, dp->reg_base + ANALOGIX_DP_BUF_DATA_0);
> +
> + /*
> + * Set DisplayPort transaction and write 1 byte
> + * If bit 3 is 1, DisplayPort transaction.
> + * If Bit 3 is 0, I2C transaction.
> + */
> + reg = AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_WRITE;
> + writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_1);
> +
> + /* Start AUX transaction */
> + retval = analogix_dp_start_aux_transaction(dp);
> + if (retval == 0)
> + break;
> +
> + dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
> + }
> +
> + return retval;
> +}
> +
> +int analogix_dp_read_byte_from_dpcd(struct analogix_dp_device *dp,
> + unsigned int reg_addr,
> + unsigned char *data)
> +{
> + u32 reg;
> + int i;
> + int retval;
> +
> + for (i = 0; i < 3; i++) {
> + /* Clear AUX CH data buffer */
> + reg = BUF_CLR;
> + writel(reg, dp->reg_base + ANALOGIX_DP_BUFFER_DATA_CTL);
> +
> + /* Select DPCD device address */
> + reg = AUX_ADDR_7_0(reg_addr);
> + writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_7_0);
> + reg = AUX_ADDR_15_8(reg_addr);
> + writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_15_8);
> + reg = AUX_ADDR_19_16(reg_addr);
> + writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_19_16);
> +
> + /*
> + * Set DisplayPort transaction and read 1 byte
> + * If bit 3 is 1, DisplayPort transaction.
> + * If Bit 3 is 0, I2C transaction.
> + */
> + reg = AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_READ;
> + writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_1);
> +
> + /* Start AUX transaction */
> + retval = analogix_dp_start_aux_transaction(dp);
> + if (retval == 0)
> + break;
> +
> + dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
> + }
> +
> + /* Read data buffer */
> + reg = readl(dp->reg_base + ANALOGIX_DP_BUF_DATA_0);
> + *data = (unsigned char)(reg & 0xff);
> +
> + return retval;
> +}
> +
> +int analogix_dp_write_bytes_to_dpcd(struct analogix_dp_device *dp,
> + unsigned int reg_addr,
> + unsigned int count,
> + unsigned char data[])
> +{
> + u32 reg;
> + unsigned int start_offset;
> + unsigned int cur_data_count;
> + unsigned int cur_data_idx;
> + int i;
> + int retval = 0;
> +
> + /* Clear AUX CH data buffer */
> + reg = BUF_CLR;
> + writel(reg, dp->reg_base + ANALOGIX_DP_BUFFER_DATA_CTL);
> +
> + start_offset = 0;
> + while (start_offset < count) {
> + /* Buffer size of AUX CH is 16 * 4bytes */
> + if ((count - start_offset) > 16)
> + cur_data_count = 16;
> + else
> + cur_data_count = count - start_offset;
> +
> + for (i = 0; i < 3; i++) {
> + /* Select DPCD device address */
> + reg = AUX_ADDR_7_0(reg_addr + start_offset);
> + writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_7_0);
> + reg = AUX_ADDR_15_8(reg_addr + start_offset);
> + writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_15_8);
> + reg = AUX_ADDR_19_16(reg_addr + start_offset);
> + writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_19_16);
> +
> + for (cur_data_idx = 0; cur_data_idx < cur_data_count;
> + cur_data_idx++) {
> + reg = data[start_offset + cur_data_idx];
> + writel(reg, dp->reg_base +
> + ANALOGIX_DP_BUF_DATA_0 +
> + 4 * cur_data_idx);
> + }
> +
> + /*
> + * Set DisplayPort transaction and write
> + * If bit 3 is 1, DisplayPort transaction.
> + * If Bit 3 is 0, I2C transaction.
> + */
> + reg = AUX_LENGTH(cur_data_count) |
> + AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_WRITE;
> + writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_1);
> +
> + /* Start AUX transaction */
> + retval = analogix_dp_start_aux_transaction(dp);
> + if (retval == 0)
> + break;
> +
> + dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
> + __func__);
> + }
> +
> + start_offset += cur_data_count;
> + }
> +
> + return retval;
> +}
> +
> +int analogix_dp_read_bytes_from_dpcd(struct analogix_dp_device *dp,
> + unsigned int reg_addr,
> + unsigned int count,
> + unsigned char data[])
> +{
> + u32 reg;
> + unsigned int start_offset;
> + unsigned int cur_data_count;
> + unsigned int cur_data_idx;
> + int i;
> + int retval = 0;
> +
> + /* Clear AUX CH data buffer */
> + reg = BUF_CLR;
> + writel(reg, dp->reg_base + ANALOGIX_DP_BUFFER_DATA_CTL);
> +
> + start_offset = 0;
> + while (start_offset < count) {
> + /* Buffer size of AUX CH is 16 * 4bytes */
> + if ((count - start_offset) > 16)
> + cur_data_count = 16;
> + else
> + cur_data_count = count - start_offset;
> +
> + /* AUX CH Request Transaction process */
> + for (i = 0; i < 3; i++) {
> + /* Select DPCD device address */
> + reg = AUX_ADDR_7_0(reg_addr + start_offset);
> + writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_7_0);
> + reg = AUX_ADDR_15_8(reg_addr + start_offset);
> + writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_15_8);
> + reg = AUX_ADDR_19_16(reg_addr + start_offset);
> + writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_19_16);
> +
> + /*
> + * Set DisplayPort transaction and read
> + * If bit 3 is 1, DisplayPort transaction.
> + * If Bit 3 is 0, I2C transaction.
> + */
> + reg = AUX_LENGTH(cur_data_count) |
> + AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_READ;
> + writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_1);
> +
> + /* Start AUX transaction */
> + retval = analogix_dp_start_aux_transaction(dp);
> + if (retval == 0)
> + break;
> +
> + dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
> + __func__);
> + }
> +
> + for (cur_data_idx = 0; cur_data_idx < cur_data_count;
> + cur_data_idx++) {
> + reg = readl(dp->reg_base + ANALOGIX_DP_BUF_DATA_0
> + + 4 * cur_data_idx);
> + data[start_offset + cur_data_idx] =
> + (unsigned char)reg;
> + }
> +
> + start_offset += cur_data_count;
> + }
> +
> + return retval;
> +}
> +
> +int analogix_dp_select_i2c_device(struct analogix_dp_device *dp,
> + unsigned int device_addr,
> + unsigned int reg_addr)
> +{
> + u32 reg;
> + int retval;
> +
> + /* Set EDID device address */
> + reg = device_addr;
> + writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_7_0);
> + writel(0x0, dp->reg_base + ANALOGIX_DP_AUX_ADDR_15_8);
> + writel(0x0, dp->reg_base + ANALOGIX_DP_AUX_ADDR_19_16);
> +
> + /* Set offset from base address of EDID device */
> + writel(reg_addr, dp->reg_base + ANALOGIX_DP_BUF_DATA_0);
> +
> + /*
> + * Set I2C transaction and write address
> + * If bit 3 is 1, DisplayPort transaction.
> + * If Bit 3 is 0, I2C transaction.
> + */
> + reg = AUX_TX_COMM_I2C_TRANSACTION | AUX_TX_COMM_MOT |
> + AUX_TX_COMM_WRITE;
> + writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_1);
> +
> + /* Start AUX transaction */
> + retval = analogix_dp_start_aux_transaction(dp);
> + if (retval != 0)
> + dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
> +
> + return retval;
> +}
> +
> +int analogix_dp_read_byte_from_i2c(struct analogix_dp_device *dp,
> + unsigned int device_addr,
> + unsigned int reg_addr,
> + unsigned int *data)
> +{
> + u32 reg;
> + int i;
> + int retval;
> +
> + for (i = 0; i < 3; i++) {
> + /* Clear AUX CH data buffer */
> + reg = BUF_CLR;
> + writel(reg, dp->reg_base + ANALOGIX_DP_BUFFER_DATA_CTL);
> +
> + /* Select EDID device */
> + retval = analogix_dp_select_i2c_device(dp, device_addr,
> + reg_addr);
> + if (retval != 0)
> + continue;
> +
> + /*
> + * Set I2C transaction and read data
> + * If bit 3 is 1, DisplayPort transaction.
> + * If Bit 3 is 0, I2C transaction.
> + */
> + reg = AUX_TX_COMM_I2C_TRANSACTION |
> + AUX_TX_COMM_READ;
> + writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_1);
> +
> + /* Start AUX transaction */
> + retval = analogix_dp_start_aux_transaction(dp);
> + if (retval == 0)
> + break;
> +
> + dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
> + }
> +
> + /* Read data */
> + if (retval == 0)
> + *data = readl(dp->reg_base + ANALOGIX_DP_BUF_DATA_0);
> +
> + return retval;
> +}
> +
> +int analogix_dp_read_bytes_from_i2c(struct analogix_dp_device *dp,
> + unsigned int device_addr,
> + unsigned int reg_addr,
> + unsigned int count,
> + unsigned char edid[])
> +{
> + u32 reg;
> + unsigned int i, j;
> + unsigned int cur_data_idx;
> + unsigned int defer = 0;
> + int retval = 0;
> +
> + for (i = 0; i < count; i += 16) {
> + for (j = 0; j < 3; j++) {
> + /* Clear AUX CH data buffer */
> + reg = BUF_CLR;
> + writel(reg, dp->reg_base + ANALOGIX_DP_BUFFER_DATA_CTL);
> +
> + /* Set normal AUX CH command */
> + reg = readl(dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_2);
> + reg &= ~ADDR_ONLY;
> + writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_2);
> +
> + /*
> + * If Rx sends defer, Tx sends only reads
> + * request without sending address
> + */
> + if (!defer)
> + retval = analogix_dp_select_i2c_device(
> + dp, device_addr, reg_addr + i);
> + else
> + defer = 0;
> +
> + if (retval == 0) {
> + /*
> + * Set I2C transaction and write data
> + * If bit 3 is 1, DisplayPort transaction.
> + * If Bit 3 is 0, I2C transaction.
> + */
> + reg = AUX_LENGTH(16) |
> + AUX_TX_COMM_I2C_TRANSACTION |
> + AUX_TX_COMM_READ;
> + writel(reg, dp->reg_base +
> + ANALOGIX_DP_AUX_CH_CTL_1);
> +
> + /* Start AUX transaction */
> + retval = analogix_dp_start_aux_transaction(dp);
> + if (retval == 0)
> + break;
> +
> + dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
> + __func__);
> + }
> + /* Check if Rx sends defer */
> + reg = readl(dp->reg_base + ANALOGIX_DP_AUX_RX_COMM);
> + if (reg == AUX_RX_COMM_AUX_DEFER ||
> + reg == AUX_RX_COMM_I2C_DEFER) {
> + dev_err(dp->dev, "Defer: %d\n\n", reg);
> + defer = 1;
> + }
> + }
> +
> + for (cur_data_idx = 0; cur_data_idx < 16; cur_data_idx++) {
> + reg = readl(dp->reg_base + ANALOGIX_DP_BUF_DATA_0
> + + 4 * cur_data_idx);
> + edid[i + cur_data_idx] = (unsigned char)reg;
> + }
> + }
> +
> + return retval;
> +}
> +
> +void analogix_dp_set_link_bandwidth(struct analogix_dp_device *dp, u32 bwtype)
> +{
> + u32 reg;
> +
> + reg = bwtype;
> + if ((bwtype == LINK_RATE_2_70GBPS) || (bwtype == LINK_RATE_1_62GBPS))
> + writel(reg, dp->reg_base + ANALOGIX_DP_LINK_BW_SET);
> +}
> +
> +void analogix_dp_get_link_bandwidth(struct analogix_dp_device *dp, u32 *bwtype)
> +{
> + u32 reg;
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_LINK_BW_SET);
> + *bwtype = reg;
> +}
> +
> +void analogix_dp_set_lane_count(struct analogix_dp_device *dp, u32 count)
> +{
> + u32 reg;
> +
> + reg = count;
> + writel(reg, dp->reg_base + ANALOGIX_DP_LANE_COUNT_SET);
> +}
> +
> +void analogix_dp_get_lane_count(struct analogix_dp_device *dp, u32 *count)
> +{
> + u32 reg;
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_LANE_COUNT_SET);
> + *count = reg;
> +}
> +
> +void analogix_dp_enable_enhanced_mode(struct analogix_dp_device *dp,
> + bool enable)
> +{
> + u32 reg;
> +
> + if (enable) {
> + reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
> + reg |= ENHANCED;
> + writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
> + } else {
> + reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
> + reg &= ~ENHANCED;
> + writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
> + }
> +}
> +
> +void analogix_dp_set_training_pattern(struct analogix_dp_device *dp,
> + enum pattern_set pattern)
> +{
> + u32 reg;
> +
> + switch (pattern) {
> + case PRBS7:
> + reg = SCRAMBLING_ENABLE | LINK_QUAL_PATTERN_SET_PRBS7;
> + writel(reg, dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
> + break;
> + case D10_2:
> + reg = SCRAMBLING_ENABLE | LINK_QUAL_PATTERN_SET_D10_2;
> + writel(reg, dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
> + break;
> + case TRAINING_PTN1:
> + reg = SCRAMBLING_DISABLE | SW_TRAINING_PATTERN_SET_PTN1;
> + writel(reg, dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
> + break;
> + case TRAINING_PTN2:
> + reg = SCRAMBLING_DISABLE | SW_TRAINING_PATTERN_SET_PTN2;
> + writel(reg, dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
> + break;
> + case DP_NONE:
> + reg = SCRAMBLING_ENABLE |
> + LINK_QUAL_PATTERN_SET_DISABLE |
> + SW_TRAINING_PATTERN_SET_NORMAL;
> + writel(reg, dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
> + break;
> + default:
> + break;
> + }
> +}
> +
> +void analogix_dp_set_lane0_pre_emphasis(struct analogix_dp_device *dp,
> + u32 level)
> +{
> + u32 reg;
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_LN0_LINK_TRAINING_CTL);
> + reg &= ~PRE_EMPHASIS_SET_MASK;
> + reg |= level << PRE_EMPHASIS_SET_SHIFT;
> + writel(reg, dp->reg_base + ANALOGIX_DP_LN0_LINK_TRAINING_CTL);
> +}
> +
> +void analogix_dp_set_lane1_pre_emphasis(struct analogix_dp_device *dp,
> + u32 level)
> +{
> + u32 reg;
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_LN1_LINK_TRAINING_CTL);
> + reg &= ~PRE_EMPHASIS_SET_MASK;
> + reg |= level << PRE_EMPHASIS_SET_SHIFT;
> + writel(reg, dp->reg_base + ANALOGIX_DP_LN1_LINK_TRAINING_CTL);
> +}
> +
> +void analogix_dp_set_lane2_pre_emphasis(struct analogix_dp_device *dp,
> + u32 level)
> +{
> + u32 reg;
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_LN2_LINK_TRAINING_CTL);
> + reg &= ~PRE_EMPHASIS_SET_MASK;
> + reg |= level << PRE_EMPHASIS_SET_SHIFT;
> + writel(reg, dp->reg_base + ANALOGIX_DP_LN2_LINK_TRAINING_CTL);
> +}
> +
> +void analogix_dp_set_lane3_pre_emphasis(struct analogix_dp_device *dp,
> + u32 level)
> +{
> + u32 reg;
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_LN3_LINK_TRAINING_CTL);
> + reg &= ~PRE_EMPHASIS_SET_MASK;
> + reg |= level << PRE_EMPHASIS_SET_SHIFT;
> + writel(reg, dp->reg_base + ANALOGIX_DP_LN3_LINK_TRAINING_CTL);
> +}
> +
> +void analogix_dp_set_lane0_link_training(struct analogix_dp_device *dp,
> + u32 training_lane)
> +{
> + u32 reg;
> +
> + reg = training_lane;
> + writel(reg, dp->reg_base + ANALOGIX_DP_LN0_LINK_TRAINING_CTL);
> +}
> +
> +void analogix_dp_set_lane1_link_training(struct analogix_dp_device *dp,
> + u32 training_lane)
> +{
> + u32 reg;
> +
> + reg = training_lane;
> + writel(reg, dp->reg_base + ANALOGIX_DP_LN1_LINK_TRAINING_CTL);
> +}
> +
> +void analogix_dp_set_lane2_link_training(struct analogix_dp_device *dp,
> + u32 training_lane)
> +{
> + u32 reg;
> +
> + reg = training_lane;
> + writel(reg, dp->reg_base + ANALOGIX_DP_LN2_LINK_TRAINING_CTL);
> +}
> +
> +void analogix_dp_set_lane3_link_training(struct analogix_dp_device *dp,
> + u32 training_lane)
> +{
> + u32 reg;
> +
> + reg = training_lane;
> + writel(reg, dp->reg_base + ANALOGIX_DP_LN3_LINK_TRAINING_CTL);
> +}
> +
> +u32 analogix_dp_get_lane0_link_training(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_LN0_LINK_TRAINING_CTL);
> + return reg;
> +}
> +
> +u32 analogix_dp_get_lane1_link_training(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_LN1_LINK_TRAINING_CTL);
> + return reg;
> +}
> +
> +u32 analogix_dp_get_lane2_link_training(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_LN2_LINK_TRAINING_CTL);
> + return reg;
> +}
> +
> +u32 analogix_dp_get_lane3_link_training(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_LN3_LINK_TRAINING_CTL);
> + return reg;
> +}
> +
> +void analogix_dp_reset_macro(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_PHY_TEST);
> + reg |= MACRO_RST;
> + writel(reg, dp->reg_base + ANALOGIX_DP_PHY_TEST);
> +
> + /* 10 us is the minimum reset time. */
> + usleep_range(10, 20);
> +
> + reg &= ~MACRO_RST;
> + writel(reg, dp->reg_base + ANALOGIX_DP_PHY_TEST);
> +}
> +
> +void analogix_dp_init_video(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + reg = VSYNC_DET | VID_FORMAT_CHG | VID_CLK_CHG;
> + writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_1);
> +
> + reg = 0x0;
> + writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_1);
> +
> + reg = CHA_CRI(4) | CHA_CTRL;
> + writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_2);
> +
> + reg = 0x0;
> + writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
> +
> + reg = VID_HRES_TH(2) | VID_VRES_TH(0);
> + writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_8);
> +}
> +
> +void analogix_dp_set_video_color_format(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + /* Configure the input color depth, color space, dynamic range */
> + reg = (dp->video_info->dynamic_range << IN_D_RANGE_SHIFT) |
> + (dp->video_info->color_depth << IN_BPC_SHIFT) |
> + (dp->video_info->color_space << IN_COLOR_F_SHIFT);
> + writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_2);
> +
> + /* Set Input Color YCbCr Coefficients to ITU601 or ITU709 */
> + reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_3);
> + reg &= ~IN_YC_COEFFI_MASK;
> + if (dp->video_info->ycbcr_coeff)
> + reg |= IN_YC_COEFFI_ITU709;
> + else
> + reg |= IN_YC_COEFFI_ITU601;
> + writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_3);
> +}
> +
> +int analogix_dp_is_slave_video_stream_clock_on(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_1);
> + writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_1);
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_1);
> +
> + if (!(reg & DET_STA)) {
> + dev_dbg(dp->dev, "Input stream clock not detected.\n");
> + return -EINVAL;
> + }
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_2);
> + writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_2);
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_2);
> + dev_dbg(dp->dev, "wait SYS_CTL_2.\n");
> +
> + if (reg & CHA_STA) {
> + dev_dbg(dp->dev, "Input stream clk is changing\n");
> + return -EINVAL;
> + }
> +
> + return 0;
> +}
> +
> +void analogix_dp_set_video_cr_mn(struct analogix_dp_device *dp,
> + enum clock_recovery_m_value_type type,
> + u32 m_value, u32 n_value)
> +{
> + u32 reg;
> +
> + if (type == REGISTER_M) {
> + reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
> + reg |= FIX_M_VID;
> + writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
> + reg = m_value & 0xff;
> + writel(reg, dp->reg_base + ANALOGIX_DP_M_VID_0);
> + reg = (m_value >> 8) & 0xff;
> + writel(reg, dp->reg_base + ANALOGIX_DP_M_VID_1);
> + reg = (m_value >> 16) & 0xff;
> + writel(reg, dp->reg_base + ANALOGIX_DP_M_VID_2);
> +
> + reg = n_value & 0xff;
> + writel(reg, dp->reg_base + ANALOGIX_DP_N_VID_0);
> + reg = (n_value >> 8) & 0xff;
> + writel(reg, dp->reg_base + ANALOGIX_DP_N_VID_1);
> + reg = (n_value >> 16) & 0xff;
> + writel(reg, dp->reg_base + ANALOGIX_DP_N_VID_2);
> + } else {
> + reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
> + reg &= ~FIX_M_VID;
> + writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
> +
> + writel(0x00, dp->reg_base + ANALOGIX_DP_N_VID_0);
> + writel(0x80, dp->reg_base + ANALOGIX_DP_N_VID_1);
> + writel(0x00, dp->reg_base + ANALOGIX_DP_N_VID_2);
> + }
> +}
> +
> +void analogix_dp_set_video_timing_mode(struct analogix_dp_device *dp, u32 type)
> +{
> + u32 reg;
> +
> + if (type == VIDEO_TIMING_FROM_CAPTURE) {
> + reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
> + reg &= ~FORMAT_SEL;
> + writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
> + } else {
> + reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
> + reg |= FORMAT_SEL;
> + writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
> + }
> +}
> +
> +void analogix_dp_enable_video_master(struct analogix_dp_device *dp, bool enable)
> +{
> + u32 reg;
> +
> + if (enable) {
> + reg = readl(dp->reg_base + ANALOGIX_DP_SOC_GENERAL_CTL);
> + reg &= ~VIDEO_MODE_MASK;
> + reg |= VIDEO_MASTER_MODE_EN | VIDEO_MODE_MASTER_MODE;
> + writel(reg, dp->reg_base + ANALOGIX_DP_SOC_GENERAL_CTL);
> + } else {
> + reg = readl(dp->reg_base + ANALOGIX_DP_SOC_GENERAL_CTL);
> + reg &= ~VIDEO_MODE_MASK;
> + reg |= VIDEO_MODE_SLAVE_MODE;
> + writel(reg, dp->reg_base + ANALOGIX_DP_SOC_GENERAL_CTL);
> + }
> +}
> +
> +void analogix_dp_start_video(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
> + reg |= VIDEO_EN;
> + writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
> +}
> +
> +int analogix_dp_is_video_stream_on(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
> + writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
> + if (!(reg & STRM_VALID)) {
> + dev_dbg(dp->dev, "Input video stream is not detected.\n");
> + return -EINVAL;
> + }
> +
> + return 0;
> +}
> +
> +void analogix_dp_config_video_slave_mode(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_FUNC_EN_1);
> + reg &= ~(MASTER_VID_FUNC_EN_N | SLAVE_VID_FUNC_EN_N);
> + reg |= MASTER_VID_FUNC_EN_N;
> + writel(reg, dp->reg_base + ANALOGIX_DP_FUNC_EN_1);
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
> + reg &= ~INTERACE_SCAN_CFG;
> + reg |= (dp->video_info->interlaced << 2);
> + writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
> + reg &= ~VSYNC_POLARITY_CFG;
> + reg |= (dp->video_info->v_sync_polarity << 1);
> + writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
> + reg &= ~HSYNC_POLARITY_CFG;
> + reg |= (dp->video_info->h_sync_polarity << 0);
> + writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
> +
> + reg = AUDIO_MODE_SPDIF_MODE | VIDEO_MODE_SLAVE_MODE;
> + writel(reg, dp->reg_base + ANALOGIX_DP_SOC_GENERAL_CTL);
> +}
> +
> +void analogix_dp_enable_scrambling(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
> + reg &= ~SCRAMBLING_DISABLE;
> + writel(reg, dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
> +}
> +
> +void analogix_dp_disable_scrambling(struct analogix_dp_device *dp)
> +{
> + u32 reg;
> +
> + reg = readl(dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
> + reg |= SCRAMBLING_DISABLE;
> + writel(reg, dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
> +}
> diff --git a/drivers/gpu/drm/exynos/exynos_dp_reg.h b/drivers/gpu/drm/bridge/analogix_dp_reg.h
> similarity index 63%
> rename from drivers/gpu/drm/exynos/exynos_dp_reg.h
> rename to drivers/gpu/drm/bridge/analogix_dp_reg.h
> index 2e9bd0e..98153e2 100644
> --- a/drivers/gpu/drm/exynos/exynos_dp_reg.h
> +++ b/drivers/gpu/drm/bridge/analogix_dp_reg.h
> @@ -1,104 +1,106 @@
> /*
> - * Register definition file for Samsung DP driver
> + * Register definition file for Analogix Core DP driver
> *
> * Copyright (C) 2012 Samsung Electronics Co., Ltd.
> + * Copyright (C) FuZhou Rockchip Electronics Co., Ltd.
> * Author: Jingoo Han <[email protected]>
> + * Yakir Yang <[email protected]>
The same as above.
> *
> * This program is free software; you can redistribute it and/or modify
> * it under the terms of the GNU General Public License version 2 as
> * published by the Free Software Foundation.
> */
>
> -#ifndef _EXYNOS_DP_REG_H
> -#define _EXYNOS_DP_REG_H
> -
> -#define EXYNOS_DP_TX_SW_RESET 0x14
> -#define EXYNOS_DP_FUNC_EN_1 0x18
> -#define EXYNOS_DP_FUNC_EN_2 0x1C
> -#define EXYNOS_DP_VIDEO_CTL_1 0x20
> -#define EXYNOS_DP_VIDEO_CTL_2 0x24
> -#define EXYNOS_DP_VIDEO_CTL_3 0x28
> -
> -#define EXYNOS_DP_VIDEO_CTL_8 0x3C
> -#define EXYNOS_DP_VIDEO_CTL_10 0x44
> -
> -#define EXYNOS_DP_LANE_MAP 0x35C
> -
> -#define EXYNOS_DP_ANALOG_CTL_1 0x370
> -#define EXYNOS_DP_ANALOG_CTL_2 0x374
> -#define EXYNOS_DP_ANALOG_CTL_3 0x378
> -#define EXYNOS_DP_PLL_FILTER_CTL_1 0x37C
> -#define EXYNOS_DP_TX_AMP_TUNING_CTL 0x380
> -
> -#define EXYNOS_DP_AUX_HW_RETRY_CTL 0x390
> -
> -#define EXYNOS_DP_COMMON_INT_STA_1 0x3C4
> -#define EXYNOS_DP_COMMON_INT_STA_2 0x3C8
> -#define EXYNOS_DP_COMMON_INT_STA_3 0x3CC
> -#define EXYNOS_DP_COMMON_INT_STA_4 0x3D0
> -#define EXYNOS_DP_INT_STA 0x3DC
> -#define EXYNOS_DP_COMMON_INT_MASK_1 0x3E0
> -#define EXYNOS_DP_COMMON_INT_MASK_2 0x3E4
> -#define EXYNOS_DP_COMMON_INT_MASK_3 0x3E8
> -#define EXYNOS_DP_COMMON_INT_MASK_4 0x3EC
> -#define EXYNOS_DP_INT_STA_MASK 0x3F8
> -#define EXYNOS_DP_INT_CTL 0x3FC
> -
> -#define EXYNOS_DP_SYS_CTL_1 0x600
> -#define EXYNOS_DP_SYS_CTL_2 0x604
> -#define EXYNOS_DP_SYS_CTL_3 0x608
> -#define EXYNOS_DP_SYS_CTL_4 0x60C
> -
> -#define EXYNOS_DP_PKT_SEND_CTL 0x640
> -#define EXYNOS_DP_HDCP_CTL 0x648
> -
> -#define EXYNOS_DP_LINK_BW_SET 0x680
> -#define EXYNOS_DP_LANE_COUNT_SET 0x684
> -#define EXYNOS_DP_TRAINING_PTN_SET 0x688
> -#define EXYNOS_DP_LN0_LINK_TRAINING_CTL 0x68C
> -#define EXYNOS_DP_LN1_LINK_TRAINING_CTL 0x690
> -#define EXYNOS_DP_LN2_LINK_TRAINING_CTL 0x694
> -#define EXYNOS_DP_LN3_LINK_TRAINING_CTL 0x698
> -
> -#define EXYNOS_DP_DEBUG_CTL 0x6C0
> -#define EXYNOS_DP_HPD_DEGLITCH_L 0x6C4
> -#define EXYNOS_DP_HPD_DEGLITCH_H 0x6C8
> -#define EXYNOS_DP_LINK_DEBUG_CTL 0x6E0
> -
> -#define EXYNOS_DP_M_VID_0 0x700
> -#define EXYNOS_DP_M_VID_1 0x704
> -#define EXYNOS_DP_M_VID_2 0x708
> -#define EXYNOS_DP_N_VID_0 0x70C
> -#define EXYNOS_DP_N_VID_1 0x710
> -#define EXYNOS_DP_N_VID_2 0x714
> -
> -#define EXYNOS_DP_PLL_CTL 0x71C
> -#define EXYNOS_DP_PHY_PD 0x720
> -#define EXYNOS_DP_PHY_TEST 0x724
> -
> -#define EXYNOS_DP_VIDEO_FIFO_THRD 0x730
> -#define EXYNOS_DP_AUDIO_MARGIN 0x73C
> -
> -#define EXYNOS_DP_M_VID_GEN_FILTER_TH 0x764
> -#define EXYNOS_DP_M_AUD_GEN_FILTER_TH 0x778
> -#define EXYNOS_DP_AUX_CH_STA 0x780
> -#define EXYNOS_DP_AUX_CH_DEFER_CTL 0x788
> -#define EXYNOS_DP_AUX_RX_COMM 0x78C
> -#define EXYNOS_DP_BUFFER_DATA_CTL 0x790
> -#define EXYNOS_DP_AUX_CH_CTL_1 0x794
> -#define EXYNOS_DP_AUX_ADDR_7_0 0x798
> -#define EXYNOS_DP_AUX_ADDR_15_8 0x79C
> -#define EXYNOS_DP_AUX_ADDR_19_16 0x7A0
> -#define EXYNOS_DP_AUX_CH_CTL_2 0x7A4
> -
> -#define EXYNOS_DP_BUF_DATA_0 0x7C0
> -
> -#define EXYNOS_DP_SOC_GENERAL_CTL 0x800
> -
> -/* EXYNOS_DP_TX_SW_RESET */
> +#ifndef _ANALOGIX_DP_REG_H
> +#define _ANALOGIX_DP_REG_H
> +
> +#define ANALOGIX_DP_TX_SW_RESET 0x14
> +#define ANALOGIX_DP_FUNC_EN_1 0x18
> +#define ANALOGIX_DP_FUNC_EN_2 0x1C
> +#define ANALOGIX_DP_VIDEO_CTL_1 0x20
> +#define ANALOGIX_DP_VIDEO_CTL_2 0x24
> +#define ANALOGIX_DP_VIDEO_CTL_3 0x28
> +
> +#define ANALOGIX_DP_VIDEO_CTL_8 0x3C
> +#define ANALOGIX_DP_VIDEO_CTL_10 0x44
> +
> +#define ANALOGIX_DP_LANE_MAP 0x35C
> +
> +#define ANALOGIX_DP_ANALOG_CTL_1 0x370
> +#define ANALOGIX_DP_ANALOG_CTL_2 0x374
> +#define ANALOGIX_DP_ANALOG_CTL_3 0x378
> +#define ANALOGIX_DP_PLL_FILTER_CTL_1 0x37C
> +#define ANALOGIX_DP_TX_AMP_TUNING_CTL 0x380
> +
> +#define ANALOGIX_DP_AUX_HW_RETRY_CTL 0x390
> +
> +#define ANALOGIX_DP_COMMON_INT_STA_1 0x3C4
> +#define ANALOGIX_DP_COMMON_INT_STA_2 0x3C8
> +#define ANALOGIX_DP_COMMON_INT_STA_3 0x3CC
> +#define ANALOGIX_DP_COMMON_INT_STA_4 0x3D0
> +#define ANALOGIX_DP_INT_STA 0x3DC
> +#define ANALOGIX_DP_COMMON_INT_MASK_1 0x3E0
> +#define ANALOGIX_DP_COMMON_INT_MASK_2 0x3E4
> +#define ANALOGIX_DP_COMMON_INT_MASK_3 0x3E8
> +#define ANALOGIX_DP_COMMON_INT_MASK_4 0x3EC
> +#define ANALOGIX_DP_INT_STA_MASK 0x3F8
> +#define ANALOGIX_DP_INT_CTL 0x3FC
> +
> +#define ANALOGIX_DP_SYS_CTL_1 0x600
> +#define ANALOGIX_DP_SYS_CTL_2 0x604
> +#define ANALOGIX_DP_SYS_CTL_3 0x608
> +#define ANALOGIX_DP_SYS_CTL_4 0x60C
> +
> +#define ANALOGIX_DP_PKT_SEND_CTL 0x640
> +#define ANALOGIX_DP_HDCP_CTL 0x648
> +
> +#define ANALOGIX_DP_LINK_BW_SET 0x680
> +#define ANALOGIX_DP_LANE_COUNT_SET 0x684
> +#define ANALOGIX_DP_TRAINING_PTN_SET 0x688
> +#define ANALOGIX_DP_LN0_LINK_TRAINING_CTL 0x68C
> +#define ANALOGIX_DP_LN1_LINK_TRAINING_CTL 0x690
> +#define ANALOGIX_DP_LN2_LINK_TRAINING_CTL 0x694
> +#define ANALOGIX_DP_LN3_LINK_TRAINING_CTL 0x698
> +
> +#define ANALOGIX_DP_DEBUG_CTL 0x6C0
> +#define ANALOGIX_DP_HPD_DEGLITCH_L 0x6C4
> +#define ANALOGIX_DP_HPD_DEGLITCH_H 0x6C8
> +#define ANALOGIX_DP_LINK_DEBUG_CTL 0x6E0
> +
> +#define ANALOGIX_DP_M_VID_0 0x700
> +#define ANALOGIX_DP_M_VID_1 0x704
> +#define ANALOGIX_DP_M_VID_2 0x708
> +#define ANALOGIX_DP_N_VID_0 0x70C
> +#define ANALOGIX_DP_N_VID_1 0x710
> +#define ANALOGIX_DP_N_VID_2 0x714
> +
> +#define ANALOGIX_DP_PLL_CTL 0x71C
> +#define ANALOGIX_DP_PHY_PD 0x720
> +#define ANALOGIX_DP_PHY_TEST 0x724
> +
> +#define ANALOGIX_DP_VIDEO_FIFO_THRD 0x730
> +#define ANALOGIX_DP_AUDIO_MARGIN 0x73C
> +
> +#define ANALOGIX_DP_M_VID_GEN_FILTER_TH 0x764
> +#define ANALOGIX_DP_M_AUD_GEN_FILTER_TH 0x778
> +#define ANALOGIX_DP_AUX_CH_STA 0x780
> +#define ANALOGIX_DP_AUX_CH_DEFER_CTL 0x788
> +#define ANALOGIX_DP_AUX_RX_COMM 0x78C
> +#define ANALOGIX_DP_BUFFER_DATA_CTL 0x790
> +#define ANALOGIX_DP_AUX_CH_CTL_1 0x794
> +#define ANALOGIX_DP_AUX_ADDR_7_0 0x798
> +#define ANALOGIX_DP_AUX_ADDR_15_8 0x79C
> +#define ANALOGIX_DP_AUX_ADDR_19_16 0x7A0
> +#define ANALOGIX_DP_AUX_CH_CTL_2 0x7A4
> +
> +#define ANALOGIX_DP_BUF_DATA_0 0x7C0
> +
> +#define ANALOGIX_DP_SOC_GENERAL_CTL 0x800
> +
> +/* ANALOGIX_DP_TX_SW_RESET */
> #define RESET_DP_TX (0x1 << 0)
>
> -/* EXYNOS_DP_FUNC_EN_1 */
> +/* ANALOGIX_DP_FUNC_EN_1 */
> #define MASTER_VID_FUNC_EN_N (0x1 << 7)
> #define SLAVE_VID_FUNC_EN_N (0x1 << 5)
> #define AUD_FIFO_FUNC_EN_N (0x1 << 4)
> @@ -107,17 +109,17 @@
> #define CRC_FUNC_EN_N (0x1 << 1)
> #define SW_FUNC_EN_N (0x1 << 0)
>
> -/* EXYNOS_DP_FUNC_EN_2 */
> +/* ANALOGIX_DP_FUNC_EN_2 */
> #define SSC_FUNC_EN_N (0x1 << 7)
> #define AUX_FUNC_EN_N (0x1 << 2)
> #define SERDES_FIFO_FUNC_EN_N (0x1 << 1)
> #define LS_CLK_DOMAIN_FUNC_EN_N (0x1 << 0)
>
> -/* EXYNOS_DP_VIDEO_CTL_1 */
> +/* ANALOGIX_DP_VIDEO_CTL_1 */
> #define VIDEO_EN (0x1 << 7)
> #define HDCP_VIDEO_MUTE (0x1 << 6)
>
> -/* EXYNOS_DP_VIDEO_CTL_1 */
> +/* ANALOGIX_DP_VIDEO_CTL_1 */
> #define IN_D_RANGE_MASK (0x1 << 7)
> #define IN_D_RANGE_SHIFT (7)
> #define IN_D_RANGE_CEA (0x1 << 7)
> @@ -134,7 +136,7 @@
> #define IN_COLOR_F_YCBCR422 (0x1 << 0)
> #define IN_COLOR_F_RGB (0x0 << 0)
>
> -/* EXYNOS_DP_VIDEO_CTL_3 */
> +/* ANALOGIX_DP_VIDEO_CTL_3 */
> #define IN_YC_COEFFI_MASK (0x1 << 7)
> #define IN_YC_COEFFI_SHIFT (7)
> #define IN_YC_COEFFI_ITU709 (0x1 << 7)
> @@ -144,17 +146,17 @@
> #define VID_CHK_UPDATE_TYPE_1 (0x1 << 4)
> #define VID_CHK_UPDATE_TYPE_0 (0x0 << 4)
>
> -/* EXYNOS_DP_VIDEO_CTL_8 */
> +/* ANALOGIX_DP_VIDEO_CTL_8 */
> #define VID_HRES_TH(x) (((x) & 0xf) << 4)
> #define VID_VRES_TH(x) (((x) & 0xf) << 0)
>
> -/* EXYNOS_DP_VIDEO_CTL_10 */
> +/* ANALOGIX_DP_VIDEO_CTL_10 */
> #define FORMAT_SEL (0x1 << 4)
> #define INTERACE_SCAN_CFG (0x1 << 2)
> #define VSYNC_POLARITY_CFG (0x1 << 1)
> #define HSYNC_POLARITY_CFG (0x1 << 0)
>
> -/* EXYNOS_DP_LANE_MAP */
> +/* ANALOGIX_DP_LANE_MAP */
> #define LANE3_MAP_LOGIC_LANE_0 (0x0 << 6)
> #define LANE3_MAP_LOGIC_LANE_1 (0x1 << 6)
> #define LANE3_MAP_LOGIC_LANE_2 (0x2 << 6)
> @@ -172,30 +174,30 @@
> #define LANE0_MAP_LOGIC_LANE_2 (0x2 << 0)
> #define LANE0_MAP_LOGIC_LANE_3 (0x3 << 0)
>
> -/* EXYNOS_DP_ANALOG_CTL_1 */
> +/* ANALOGIX_DP_ANALOG_CTL_1 */
> #define TX_TERMINAL_CTRL_50_OHM (0x1 << 4)
>
> -/* EXYNOS_DP_ANALOG_CTL_2 */
> +/* ANALOGIX_DP_ANALOG_CTL_2 */
> #define SEL_24M (0x1 << 3)
> #define TX_DVDD_BIT_1_0625V (0x4 << 0)
>
> -/* EXYNOS_DP_ANALOG_CTL_3 */
> +/* ANALOGIX_DP_ANALOG_CTL_3 */
> #define DRIVE_DVDD_BIT_1_0625V (0x4 << 5)
> #define VCO_BIT_600_MICRO (0x5 << 0)
>
> -/* EXYNOS_DP_PLL_FILTER_CTL_1 */
> +/* ANALOGIX_DP_PLL_FILTER_CTL_1 */
> #define PD_RING_OSC (0x1 << 6)
> #define AUX_TERMINAL_CTRL_50_OHM (0x2 << 4)
> #define TX_CUR1_2X (0x1 << 2)
> #define TX_CUR_16_MA (0x3 << 0)
>
> -/* EXYNOS_DP_TX_AMP_TUNING_CTL */
> +/* ANALOGIX_DP_TX_AMP_TUNING_CTL */
> #define CH3_AMP_400_MV (0x0 << 24)
> #define CH2_AMP_400_MV (0x0 << 16)
> #define CH1_AMP_400_MV (0x0 << 8)
> #define CH0_AMP_400_MV (0x0 << 0)
>
> -/* EXYNOS_DP_AUX_HW_RETRY_CTL */
> +/* ANALOGIX_DP_AUX_HW_RETRY_CTL */
> #define AUX_BIT_PERIOD_EXPECTED_DELAY(x) (((x) & 0x7) << 8)
> #define AUX_HW_RETRY_INTERVAL_MASK (0x3 << 3)
> #define AUX_HW_RETRY_INTERVAL_600_MICROSECONDS (0x0 << 3)
> @@ -204,7 +206,7 @@
> #define AUX_HW_RETRY_INTERVAL_1800_MICROSECONDS (0x3 << 3)
> #define AUX_HW_RETRY_COUNT_SEL(x) (((x) & 0x7) << 0)
>
> -/* EXYNOS_DP_COMMON_INT_STA_1 */
> +/* ANALOGIX_DP_COMMON_INT_STA_1 */
> #define VSYNC_DET (0x1 << 7)
> #define PLL_LOCK_CHG (0x1 << 6)
> #define SPDIF_ERR (0x1 << 5)
> @@ -214,19 +216,19 @@
> #define VID_CLK_CHG (0x1 << 1)
> #define SW_INT (0x1 << 0)
>
> -/* EXYNOS_DP_COMMON_INT_STA_2 */
> +/* ANALOGIX_DP_COMMON_INT_STA_2 */
> #define ENC_EN_CHG (0x1 << 6)
> #define HW_BKSV_RDY (0x1 << 3)
> #define HW_SHA_DONE (0x1 << 2)
> #define HW_AUTH_STATE_CHG (0x1 << 1)
> #define HW_AUTH_DONE (0x1 << 0)
>
> -/* EXYNOS_DP_COMMON_INT_STA_3 */
> +/* ANALOGIX_DP_COMMON_INT_STA_3 */
> #define AFIFO_UNDER (0x1 << 7)
> #define AFIFO_OVER (0x1 << 6)
> #define R0_CHK_FLAG (0x1 << 5)
>
> -/* EXYNOS_DP_COMMON_INT_STA_4 */
> +/* ANALOGIX_DP_COMMON_INT_STA_4 */
> #define PSR_ACTIVE (0x1 << 7)
> #define PSR_INACTIVE (0x1 << 6)
> #define SPDIF_BI_PHASE_ERR (0x1 << 5)
> @@ -234,29 +236,29 @@
> #define HPD_LOST (0x1 << 1)
> #define PLUG (0x1 << 0)
>
> -/* EXYNOS_DP_INT_STA */
> +/* ANALOGIX_DP_INT_STA */
> #define INT_HPD (0x1 << 6)
> #define HW_TRAINING_FINISH (0x1 << 5)
> #define RPLY_RECEIV (0x1 << 1)
> #define AUX_ERR (0x1 << 0)
>
> -/* EXYNOS_DP_INT_CTL */
> +/* ANALOGIX_DP_INT_CTL */
> #define SOFT_INT_CTRL (0x1 << 2)
> #define INT_POL1 (0x1 << 1)
> #define INT_POL0 (0x1 << 0)
>
> -/* EXYNOS_DP_SYS_CTL_1 */
> +/* ANALOGIX_DP_SYS_CTL_1 */
> #define DET_STA (0x1 << 2)
> #define FORCE_DET (0x1 << 1)
> #define DET_CTRL (0x1 << 0)
>
> -/* EXYNOS_DP_SYS_CTL_2 */
> +/* ANALOGIX_DP_SYS_CTL_2 */
> #define CHA_CRI(x) (((x) & 0xf) << 4)
> #define CHA_STA (0x1 << 2)
> #define FORCE_CHA (0x1 << 1)
> #define CHA_CTRL (0x1 << 0)
>
> -/* EXYNOS_DP_SYS_CTL_3 */
> +/* ANALOGIX_DP_SYS_CTL_3 */
> #define HPD_STATUS (0x1 << 6)
> #define F_HPD (0x1 << 5)
> #define HPD_CTRL (0x1 << 4)
> @@ -265,13 +267,13 @@
> #define F_VALID (0x1 << 1)
> #define VALID_CTRL (0x1 << 0)
>
> -/* EXYNOS_DP_SYS_CTL_4 */
> +/* ANALOGIX_DP_SYS_CTL_4 */
> #define FIX_M_AUD (0x1 << 4)
> #define ENHANCED (0x1 << 3)
> #define FIX_M_VID (0x1 << 2)
> #define M_VID_UPDATE_CTRL (0x3 << 0)
>
> -/* EXYNOS_DP_TRAINING_PTN_SET */
> +/* ANALOGIX_DP_TRAINING_PTN_SET */
> #define SCRAMBLER_TYPE (0x1 << 9)
> #define HW_LINK_TRAINING_PATTERN (0x1 << 8)
> #define SCRAMBLING_DISABLE (0x1 << 5)
> @@ -285,24 +287,24 @@
> #define SW_TRAINING_PATTERN_SET_PTN1 (0x1 << 0)
> #define SW_TRAINING_PATTERN_SET_NORMAL (0x0 << 0)
>
> -/* EXYNOS_DP_LN0_LINK_TRAINING_CTL */
> +/* ANALOGIX_DP_LN0_LINK_TRAINING_CTL */
> #define PRE_EMPHASIS_SET_MASK (0x3 << 3)
> #define PRE_EMPHASIS_SET_SHIFT (3)
>
> -/* EXYNOS_DP_DEBUG_CTL */
> +/* ANALOGIX_DP_DEBUG_CTL */
> #define PLL_LOCK (0x1 << 4)
> #define F_PLL_LOCK (0x1 << 3)
> #define PLL_LOCK_CTRL (0x1 << 2)
> #define PN_INV (0x1 << 0)
>
> -/* EXYNOS_DP_PLL_CTL */
> +/* ANALOGIX_DP_PLL_CTL */
> #define DP_PLL_PD (0x1 << 7)
> #define DP_PLL_RESET (0x1 << 6)
> #define DP_PLL_LOOP_BIT_DEFAULT (0x1 << 4)
> #define DP_PLL_REF_BIT_1_1250V (0x5 << 0)
> #define DP_PLL_REF_BIT_1_2500V (0x7 << 0)
>
> -/* EXYNOS_DP_PHY_PD */
> +/* ANALOGIX_DP_PHY_PD */
> #define DP_PHY_PD (0x1 << 5)
> #define AUX_PD (0x1 << 4)
> #define CH3_PD (0x1 << 3)
> @@ -310,28 +312,28 @@
> #define CH1_PD (0x1 << 1)
> #define CH0_PD (0x1 << 0)
>
> -/* EXYNOS_DP_PHY_TEST */
> +/* ANALOGIX_DP_PHY_TEST */
> #define MACRO_RST (0x1 << 5)
> #define CH1_TEST (0x1 << 1)
> #define CH0_TEST (0x1 << 0)
>
> -/* EXYNOS_DP_AUX_CH_STA */
> +/* ANALOGIX_DP_AUX_CH_STA */
> #define AUX_BUSY (0x1 << 4)
> #define AUX_STATUS_MASK (0xf << 0)
>
> -/* EXYNOS_DP_AUX_CH_DEFER_CTL */
> +/* ANALOGIX_DP_AUX_CH_DEFER_CTL */
> #define DEFER_CTRL_EN (0x1 << 7)
> #define DEFER_COUNT(x) (((x) & 0x7f) << 0)
>
> -/* EXYNOS_DP_AUX_RX_COMM */
> +/* ANALOGIX_DP_AUX_RX_COMM */
> #define AUX_RX_COMM_I2C_DEFER (0x2 << 2)
> #define AUX_RX_COMM_AUX_DEFER (0x2 << 0)
>
> -/* EXYNOS_DP_BUFFER_DATA_CTL */
> +/* ANALOGIX_DP_BUFFER_DATA_CTL */
> #define BUF_CLR (0x1 << 7)
> #define BUF_DATA_COUNT(x) (((x) & 0x1f) << 0)
>
> -/* EXYNOS_DP_AUX_CH_CTL_1 */
> +/* ANALOGIX_DP_AUX_CH_CTL_1 */
> #define AUX_LENGTH(x) (((x - 1) & 0xf) << 4)
> #define AUX_TX_COMM_MASK (0xf << 0)
> #define AUX_TX_COMM_DP_TRANSACTION (0x1 << 3)
> @@ -340,20 +342,20 @@
> #define AUX_TX_COMM_WRITE (0x0 << 0)
> #define AUX_TX_COMM_READ (0x1 << 0)
>
> -/* EXYNOS_DP_AUX_ADDR_7_0 */
> +/* ANALOGIX_DP_AUX_ADDR_7_0 */
> #define AUX_ADDR_7_0(x) (((x) >> 0) & 0xff)
>
> -/* EXYNOS_DP_AUX_ADDR_15_8 */
> +/* ANALOGIX_DP_AUX_ADDR_15_8 */
> #define AUX_ADDR_15_8(x) (((x) >> 8) & 0xff)
>
> -/* EXYNOS_DP_AUX_ADDR_19_16 */
> +/* ANALOGIX_DP_AUX_ADDR_19_16 */
> #define AUX_ADDR_19_16(x) (((x) >> 16) & 0x0f)
>
> -/* EXYNOS_DP_AUX_CH_CTL_2 */
> +/* ANALOGIX_DP_AUX_CH_CTL_2 */
> #define ADDR_ONLY (0x1 << 1)
> #define AUX_EN (0x1 << 0)
>
> -/* EXYNOS_DP_SOC_GENERAL_CTL */
> +/* ANALOGIX_DP_SOC_GENERAL_CTL */
> #define AUDIO_MODE_SPDIF_MODE (0x1 << 8)
> #define AUDIO_MODE_MASTER_MODE (0x0 << 8)
> #define MASTER_VIDEO_INTERLACE_EN (0x1 << 4)
> @@ -363,4 +365,4 @@
> #define VIDEO_MODE_SLAVE_MODE (0x1 << 0)
> #define VIDEO_MODE_MASTER_MODE (0x0 << 0)
>
> -#endif /* _EXYNOS_DP_REG_H */
> +#endif /* _ANALOGIX_DP_REG_H */
> diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig
> index 43003c4..b33549c 100644
> --- a/drivers/gpu/drm/exynos/Kconfig
> +++ b/drivers/gpu/drm/exynos/Kconfig
> @@ -54,9 +54,10 @@ config DRM_EXYNOS_DSI
> help
> This enables support for Exynos MIPI-DSI device.
>
> -config DRM_EXYNOS_DP
> - bool "EXYNOS DRM DP driver support"
> +config DRM_EXYNOS_ANALOGIX_DP
> + bool "EXYNOS specific extensions for Analogix DP driver"
> depends on DRM_EXYNOS && (DRM_EXYNOS_FIMD || DRM_EXYNOS7_DECON) && (DRM_PTN3460=n ||
> DRM_PTN3460=y || DRM_PTN3460=DRM_EXYNOS)
> + select DRM_ANALOGIX_DP
> default DRM_EXYNOS
> select DRM_PANEL
> help
> diff --git a/drivers/gpu/drm/exynos/Makefile b/drivers/gpu/drm/exynos/Makefile
> index 7de0b10..cda4d26 100644
> --- a/drivers/gpu/drm/exynos/Makefile
> +++ b/drivers/gpu/drm/exynos/Makefile
> @@ -14,7 +14,7 @@ exynosdrm-$(CONFIG_DRM_EXYNOS5433_DECON) += exynos5433_drm_decon.o
> exynosdrm-$(CONFIG_DRM_EXYNOS7_DECON) += exynos7_drm_decon.o
> exynosdrm-$(CONFIG_DRM_EXYNOS_DPI) += exynos_drm_dpi.o
> exynosdrm-$(CONFIG_DRM_EXYNOS_DSI) += exynos_drm_dsi.o
> -exynosdrm-$(CONFIG_DRM_EXYNOS_DP) += exynos_dp_core.o exynos_dp_reg.o
> +exynosdrm-$(CONFIG_DRM_EXYNOS_ANALOGIX_DP) += analogix_dp-exynos.o
> exynosdrm-$(CONFIG_DRM_EXYNOS_HDMI) += exynos_hdmi.o exynos_mixer.o
> exynosdrm-$(CONFIG_DRM_EXYNOS_VIDI) += exynos_drm_vidi.o
> exynosdrm-$(CONFIG_DRM_EXYNOS_G2D) += exynos_drm_g2d.o
> diff --git a/drivers/gpu/drm/exynos/analogix_dp-exynos.c b/drivers/gpu/drm/exynos/analogix_dp-exynos.c
> new file mode 100644
> index 0000000..b8d09d4
> --- /dev/null
> +++ b/drivers/gpu/drm/exynos/analogix_dp-exynos.c
> @@ -0,0 +1,240 @@
> +/*
> + * Samsung SoC DP (Display Port) interface driver.
> + *
> + * Copyright (C) 2012 Samsung Electronics Co., Ltd.
> + * Copyright (C) FuZhou Rockchip Electronics Co., Ltd.
> + * Author: Jingoo Han <[email protected]>
> + * Yakir Yang <[email protected]>
The same as above.
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published by the
> + * Free Software Foundation; either version 2 of the License, or (at your
> + * option) any later version.
> + */
> +#include <linux/module.h>
> +#include <linux/platform_device.h>
> +#include <linux/err.h>
> +#include <linux/clk.h>
> +#include <linux/component.h>
> +
> +#include <drm/drmP.h>
> +#include <drm/drm_panel.h>
> +#include <drm/bridge/ptn3460.h>
> +
> +#include <drm/exynos_drm.h>
> +#include "exynos_drm_drv.h"
> +
> +#define plat_data_to_dp(pd) \
> + container_of(pd, struct exynos_dp_device, plat_data)
> +
> +struct exynos_dp_device {
> + struct exynos_drm_display display;
> + struct drm_bridge *ptn_bridge;
> + struct drm_device *drm_dev;
> + struct device *dev;
> +
> + struct analogix_dp_plat_data plat_data;
> +};
> +
> +int exynos_dp_crtc_clock_enable(struct analogix_dp_plat_data *plat_data,
> + bool enable)
> +{
> + struct exynos_dp_device *dp = plat_data_to_dp(plat_data);
> + struct drm_encoder *encoder = dp->display.encoder;
> + struct exynos_drm_crtc *crtc;
> +
> + if (!encoder)
> + return -1;
> +
> + crtc = to_exynos_crtc(encoder->crtc);
> + if (crtc && crtc->ops && crtc->ops->clock_enable)
> + crtc->ops->clock_enable(crtc, enable);
> +
> + return 0;
> +}
> +
> +static int exynos_dp_poweron(struct analogix_dp_plat_data *plat_data)
> +{
> + exynos_dp_crtc_clock_enable(plat_data, true);
> +}
> +
> +static int exynos_dp_poweroff(struct analogix_dp_plat_data *plat_data)
> +{
> + exynos_dp_crtc_clock_enable(plat_data, false);
> +}
> +
> +static int exynos_dp_bridge_attach(struct analogix_dp_plat_data *plat_data,
> + struct drm_bridge *bridge)
> +{
> + struct exynos_dp_device *dp = plat_data_to_dp(plat_data);
> + struct drm_encoder *encoder = dp->display.encoder;
> + int ret;
> +
> + /* Pre-empt DP connector creation if there's a bridge */
> + if (dp->ptn_bridge) {
> + dp->bridge->next = dp->ptn_bridge;
> + dp->bridge->encoder = encoder;
> + ret = drm_bridge_attach(encoder->dev, dp->bridge);
> + if (ret) {
> + DRM_ERROR("Failed to attach bridge to drm\n");
> + bridge->next = NULL;
> + return ret;
> + }
> + }
> +
> + return 0;
> +}
> +
> +static void exynos_dp_dpms(struct exynos_drm_display *display, int mode)
> +{
> + /* do nothing */
> +}
> +
> +static int exynos_dp_create_connector(struct exynos_drm_display *display,
> + struct drm_encoder *encoder)
> +{
> + /* do nothing */
> + return 0;
> +}
> +
> +static void exynos_dp_commit(struct exynos_drm_display *display)
> +{
> + /* do nothing */
> +}
> +
> +static struct exynos_drm_display_ops exynos_dp_display_ops = {
> + .create_connector = exynos_dp_create_connector,
> + .dpms = exynos_dp_dpms,
> + .commit = exynos_dp_commit,
> +};
> +
> +static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
> +{
> + struct exynos_dp_device *dp = dev_get_drvdata(dev);
> + struct drm_device *drm_dev = data;
> + int ret;
> +
> + /*
> + * Just like the probe function said, we don't need the
> + * device drvrate anymore, we should leave the charge to
> + * analogix dp driver, set the device drvdata to NULL.
> + */
> + dev_set_drvdata(dev, NULL);
> +
> + dp->dev = dev;
> + dp->drm_dev = drm_dev;
> +
> + dp->plat_data.power_on = exynos_dp_poweron;
> + dp->plat_data.power_off = exynos_dp_poweroff;
> + dp->plat_data.attach = exynos_dp_bridge_attach;
> +
> + ret = exynos_drm_create_enc_conn(dp->drm_dev, &dp->display);
> + if (ret) {
> + DRM_ERROR("exynos dp create enc_conn failed\n");
> + return ret;
> + }
> +
> + return analogix_dp_bind(dev, dp->drm_dev, dp->display.encoder,
> + &dp->plat_data);
> +}
> +
> +static void exynos_dp_unbind(struct device *dev, struct device *master,
> + void *data)
> +{
> + return analogix_dp_unbind(dev, master, data);
> +}
> +
> +static const struct component_ops exynos_dp_ops = {
> + .bind = exynos_dp_bind,
> + .unbind = exynos_dp_unbind,
> +};
> +
> +static int exynos_dp_probe(struct platform_device *pdev)
> +{
> + struct device *dev = &pdev->dev;
> + struct device_node *panel_node, *bridge_node, *endpoint;
> + struct exynos_dp_device *dp;
> +
> + dp = devm_kzalloc(&pdev->dev, sizeof(struct exynos_dp_device),
> + GFP_KERNEL);
> + if (!dp)
> + return -ENOMEM;
> +
> + /*
> + * We just use the drvdata until driver run into component
> + * add function, and then we would set drvdata to null, so
> + * that analogix dp driver would take charge of the drvdata.
> + */
> + platform_set_drvdata(pdev, dp);
> +
> + dp->display.type = EXYNOS_DISPLAY_TYPE_LCD;
> + dp->display.ops = &exynos_dp_display_ops;
> +
> + panel_node = of_parse_phandle(dev->of_node, "panel", 0);
> + if (panel_node) {
> + dp->panel = of_drm_find_panel(panel_node);
> + of_node_put(panel_node);
> + if (!dp->panel)
> + return -EPROBE_DEFER;
> + }
> +
> + endpoint = of_graph_get_next_endpoint(dev->of_node, NULL);
> + if (endpoint) {
> + bridge_node = of_graph_get_remote_port_parent(endpoint);
> + if (bridge_node) {
> + dp->ptn_bridge = of_drm_find_bridge(bridge_node);
> + of_node_put(bridge_node);
> + if (!dp->ptn_bridge)
> + return -EPROBE_DEFER;
> + } else {
> + return -EPROBE_DEFER;
> + }
> + }
> +
> + return component_add(&pdev->dev, &exynos_dp_ops);
> +}
> +
> +static int exynos_dp_remove(struct platform_device *pdev)
> +{
> + component_del(&pdev->dev, &exynos_dp_ops);
> +
> + return 0;
> +}
> +
> +#ifdef CONFIG_PM_SLEEP
> +static int exynos_dp_suspend(struct device *dev)
> +{
> + return analogix_dp_suspend(dev);
> +}
> +
> +static int exynos_dp_resume(struct device *dev)
> +{
> + return analogix_dp_resume(dev);
> +}
> +#endif
> +
> +static const struct dev_pm_ops exynos_dp_pm_ops = {
> + SET_SYSTEM_SLEEP_PM_OPS(exynos_dp_suspend, exynos_dp_resume)
> +};
> +
> +static const struct of_device_id exynos_dp_match[] = {
> + { .compatible = "samsung,exynos5-dp" },
> + {},
> +};
> +MODULE_DEVICE_TABLE(of, exynos_dp_match);
> +
> +struct platform_driver dp_driver = {
> + .probe = exynos_dp_probe,
> + .remove = exynos_dp_remove,
> + .driver = {
> + .name = "exynos-dp",
> + .owner = THIS_MODULE,
> + .pm = &exynos_dp_pm_ops,
> + .of_match_table = exynos_dp_match,
> + },
> +};
> +
> +MODULE_AUTHOR("Jingoo Han <[email protected]>");
> +MODULE_AUTHOR("Yakir Yang <[email protected]>");
The same as above.
Best regards,
Jingoo Han
> +MODULE_DESCRIPTION("Samsung Specific Analogix-DP Driver Extension");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.h b/drivers/gpu/drm/exynos/exynos_dp_core.h
> deleted file mode 100644
> index f2584b8..0000000
> --- a/drivers/gpu/drm/exynos/exynos_dp_core.h
> +++ /dev/null
> @@ -1,283 +0,0 @@
> -/*
> - * Header file for Samsung DP (Display Port) interface driver.
> - *
> - * Copyright (C) 2012 Samsung Electronics Co., Ltd.
> - * Author: Jingoo Han <[email protected]>
> - * Yakir Yang <[email protected]>
> - *
> - * This program is free software; you can redistribute it and/or modify it
> - * under the terms of the GNU General Public License as published by the
> - * Free Software Foundation; either version 2 of the License, or (at your
> - * option) any later version.
> - */
> -
> -#ifndef _EXYNOS_DP_CORE_H
> -#define _EXYNOS_DP_CORE_H
> -
> -#include <drm/drm_crtc.h>
> -#include <drm/drm_dp_helper.h>
> -#include <drm/exynos_drm.h>
> -
> -#include "exynos_drm_drv.h"
> -
> -#define DP_TIMEOUT_LOOP_COUNT 100
> -#define MAX_CR_LOOP 5
> -#define MAX_EQ_LOOP 5
> -
> -enum link_rate_type {
> - LINK_RATE_1_62GBPS = 0x06,
> - LINK_RATE_2_70GBPS = 0x0a
> -};
> -
> -enum link_lane_count_type {
> - LANE_COUNT1 = 1,
> - LANE_COUNT2 = 2,
> - LANE_COUNT4 = 4
> -};
> -
> -enum link_training_state {
> - START,
> - CLOCK_RECOVERY,
> - EQUALIZER_TRAINING,
> - FINISHED,
> - FAILED
> -};
> -
> -enum voltage_swing_level {
> - VOLTAGE_LEVEL_0,
> - VOLTAGE_LEVEL_1,
> - VOLTAGE_LEVEL_2,
> - VOLTAGE_LEVEL_3,
> -};
> -
> -enum pre_emphasis_level {
> - PRE_EMPHASIS_LEVEL_0,
> - PRE_EMPHASIS_LEVEL_1,
> - PRE_EMPHASIS_LEVEL_2,
> - PRE_EMPHASIS_LEVEL_3,
> -};
> -
> -enum pattern_set {
> - PRBS7,
> - D10_2,
> - TRAINING_PTN1,
> - TRAINING_PTN2,
> - DP_NONE
> -};
> -
> -enum color_space {
> - COLOR_RGB,
> - COLOR_YCBCR422,
> - COLOR_YCBCR444
> -};
> -
> -enum color_depth {
> - COLOR_6,
> - COLOR_8,
> - COLOR_10,
> - COLOR_12
> -};
> -
> -enum color_coefficient {
> - COLOR_YCBCR601,
> - COLOR_YCBCR709
> -};
> -
> -enum dynamic_range {
> - VESA,
> - CEA
> -};
> -
> -enum pll_status {
> - PLL_UNLOCKED,
> - PLL_LOCKED
> -};
> -
> -enum clock_recovery_m_value_type {
> - CALCULATED_M,
> - REGISTER_M
> -};
> -
> -enum video_timing_recognition_type {
> - VIDEO_TIMING_FROM_CAPTURE,
> - VIDEO_TIMING_FROM_REGISTER
> -};
> -
> -enum analog_power_block {
> - AUX_BLOCK,
> - CH0_BLOCK,
> - CH1_BLOCK,
> - CH2_BLOCK,
> - CH3_BLOCK,
> - ANALOG_TOTAL,
> - POWER_ALL
> -};
> -
> -enum dp_irq_type {
> - DP_IRQ_TYPE_HP_CABLE_IN,
> - DP_IRQ_TYPE_HP_CABLE_OUT,
> - DP_IRQ_TYPE_HP_CHANGE,
> - DP_IRQ_TYPE_UNKNOWN,
> -};
> -
> -struct video_info {
> - char *name;
> -
> - bool h_sync_polarity;
> - bool v_sync_polarity;
> - bool interlaced;
> -
> - enum color_space color_space;
> - enum dynamic_range dynamic_range;
> - enum color_coefficient ycbcr_coeff;
> - enum color_depth color_depth;
> -
> - enum link_rate_type link_rate;
> - enum link_lane_count_type lane_count;
> -};
> -
> -struct link_train {
> - int eq_loop;
> - int cr_loop[4];
> -
> - u8 link_rate;
> - u8 lane_count;
> - u8 training_lane[4];
> -
> - enum link_training_state lt_state;
> -};
> -
> -struct exynos_dp_device {
> - struct exynos_drm_display display;
> - struct device *dev;
> - struct drm_device *drm_dev;
> - struct drm_connector connector;
> - struct drm_encoder *encoder;
> - struct drm_panel *panel;
> - struct drm_bridge *bridge;
> - struct drm_bridge *ptn_bridge;
> - struct clk *clock;
> - unsigned int irq;
> - void __iomem *reg_base;
> -
> - struct video_info *video_info;
> - struct link_train link_train;
> - struct work_struct hotplug_work;
> - struct phy *phy;
> - int dpms_mode;
> - int hpd_gpio;
> -
> - struct exynos_drm_panel_info priv;
> -};
> -
> -/* exynos_dp_reg.c */
> -void exynos_dp_enable_video_mute(struct exynos_dp_device *dp, bool enable);
> -void exynos_dp_stop_video(struct exynos_dp_device *dp);
> -void exynos_dp_lane_swap(struct exynos_dp_device *dp, bool enable);
> -void exynos_dp_init_analog_param(struct exynos_dp_device *dp);
> -void exynos_dp_init_interrupt(struct exynos_dp_device *dp);
> -void exynos_dp_reset(struct exynos_dp_device *dp);
> -void exynos_dp_swreset(struct exynos_dp_device *dp);
> -void exynos_dp_config_interrupt(struct exynos_dp_device *dp);
> -enum pll_status exynos_dp_get_pll_lock_status(struct exynos_dp_device *dp);
> -void exynos_dp_set_pll_power_down(struct exynos_dp_device *dp, bool enable);
> -void exynos_dp_set_analog_power_down(struct exynos_dp_device *dp,
> - enum analog_power_block block,
> - bool enable);
> -void exynos_dp_init_analog_func(struct exynos_dp_device *dp);
> -void exynos_dp_init_hpd(struct exynos_dp_device *dp);
> -enum dp_irq_type exynos_dp_get_irq_type(struct exynos_dp_device *dp);
> -void exynos_dp_clear_hotplug_interrupts(struct exynos_dp_device *dp);
> -void exynos_dp_reset_aux(struct exynos_dp_device *dp);
> -void exynos_dp_init_aux(struct exynos_dp_device *dp);
> -int exynos_dp_get_plug_in_status(struct exynos_dp_device *dp);
> -void exynos_dp_enable_sw_function(struct exynos_dp_device *dp);
> -int exynos_dp_start_aux_transaction(struct exynos_dp_device *dp);
> -int exynos_dp_write_byte_to_dpcd(struct exynos_dp_device *dp,
> - unsigned int reg_addr,
> - unsigned char data);
> -int exynos_dp_read_byte_from_dpcd(struct exynos_dp_device *dp,
> - unsigned int reg_addr,
> - unsigned char *data);
> -int exynos_dp_write_bytes_to_dpcd(struct exynos_dp_device *dp,
> - unsigned int reg_addr,
> - unsigned int count,
> - unsigned char data[]);
> -int exynos_dp_read_bytes_from_dpcd(struct exynos_dp_device *dp,
> - unsigned int reg_addr,
> - unsigned int count,
> - unsigned char data[]);
> -int exynos_dp_select_i2c_device(struct exynos_dp_device *dp,
> - unsigned int device_addr,
> - unsigned int reg_addr);
> -int exynos_dp_read_byte_from_i2c(struct exynos_dp_device *dp,
> - unsigned int device_addr,
> - unsigned int reg_addr,
> - unsigned int *data);
> -int exynos_dp_read_bytes_from_i2c(struct exynos_dp_device *dp,
> - unsigned int device_addr,
> - unsigned int reg_addr,
> - unsigned int count,
> - unsigned char edid[]);
> -void exynos_dp_set_link_bandwidth(struct exynos_dp_device *dp, u32 bwtype);
> -void exynos_dp_get_link_bandwidth(struct exynos_dp_device *dp, u32 *bwtype);
> -void exynos_dp_set_lane_count(struct exynos_dp_device *dp, u32 count);
> -void exynos_dp_get_lane_count(struct exynos_dp_device *dp, u32 *count);
> -void exynos_dp_enable_enhanced_mode(struct exynos_dp_device *dp, bool enable);
> -void exynos_dp_set_training_pattern(struct exynos_dp_device *dp,
> - enum pattern_set pattern);
> -void exynos_dp_set_lane0_pre_emphasis(struct exynos_dp_device *dp, u32 level);
> -void exynos_dp_set_lane1_pre_emphasis(struct exynos_dp_device *dp, u32 level);
> -void exynos_dp_set_lane2_pre_emphasis(struct exynos_dp_device *dp, u32 level);
> -void exynos_dp_set_lane3_pre_emphasis(struct exynos_dp_device *dp, u32 level);
> -void exynos_dp_set_lane0_link_training(struct exynos_dp_device *dp,
> - u32 training_lane);
> -void exynos_dp_set_lane1_link_training(struct exynos_dp_device *dp,
> - u32 training_lane);
> -void exynos_dp_set_lane2_link_training(struct exynos_dp_device *dp,
> - u32 training_lane);
> -void exynos_dp_set_lane3_link_training(struct exynos_dp_device *dp,
> - u32 training_lane);
> -u32 exynos_dp_get_lane0_link_training(struct exynos_dp_device *dp);
> -u32 exynos_dp_get_lane1_link_training(struct exynos_dp_device *dp);
> -u32 exynos_dp_get_lane2_link_training(struct exynos_dp_device *dp);
> -u32 exynos_dp_get_lane3_link_training(struct exynos_dp_device *dp);
> -void exynos_dp_reset_macro(struct exynos_dp_device *dp);
> -void exynos_dp_init_video(struct exynos_dp_device *dp);
> -
> -void exynos_dp_set_video_color_format(struct exynos_dp_device *dp);
> -int exynos_dp_is_slave_video_stream_clock_on(struct exynos_dp_device *dp);
> -void exynos_dp_set_video_cr_mn(struct exynos_dp_device *dp,
> - enum clock_recovery_m_value_type type,
> - u32 m_value, u32 n_value);
> -void exynos_dp_set_video_timing_mode(struct exynos_dp_device *dp, u32 type);
> -void exynos_dp_enable_video_master(struct exynos_dp_device *dp, bool enable);
> -void exynos_dp_start_video(struct exynos_dp_device *dp);
> -int exynos_dp_is_video_stream_on(struct exynos_dp_device *dp);
> -void exynos_dp_config_video_slave_mode(struct exynos_dp_device *dp);
> -void exynos_dp_enable_scrambling(struct exynos_dp_device *dp);
> -void exynos_dp_disable_scrambling(struct exynos_dp_device *dp);
> -
> -/* I2C EDID Chip ID, Slave Address */
> -#define I2C_EDID_DEVICE_ADDR 0x50
> -#define I2C_E_EDID_DEVICE_ADDR 0x30
> -
> -#define EDID_BLOCK_LENGTH 0x80
> -#define EDID_HEADER_PATTERN 0x00
> -#define EDID_EXTENSION_FLAG 0x7e
> -#define EDID_CHECKSUM 0x7f
> -
> -/* DP_MAX_LANE_COUNT */
> -#define DPCD_ENHANCED_FRAME_CAP(x) (((x) >> 7) & 0x1)
> -#define DPCD_MAX_LANE_COUNT(x) ((x) & 0x1f)
> -
> -/* DP_LANE_COUNT_SET */
> -#define DPCD_LANE_COUNT_SET(x) ((x) & 0x1f)
> -
> -/* DP_TRAINING_LANE0_SET */
> -#define DPCD_PRE_EMPHASIS_SET(x) (((x) & 0x3) << 3)
> -#define DPCD_PRE_EMPHASIS_GET(x) (((x) >> 3) & 0x3)
> -#define DPCD_VOLTAGE_SWING_SET(x) (((x) & 0x3) << 0)
> -#define DPCD_VOLTAGE_SWING_GET(x) (((x) >> 0) & 0x3)
> -
> -#endif /* _EXYNOS_DP_CORE_H */
> diff --git a/include/drm/bridge/analogix_dp.h b/include/drm/bridge/analogix_dp.h
> new file mode 100644
> index 0000000..9a207f8
> --- /dev/null
> +++ b/include/drm/bridge/analogix_dp.h
> @@ -0,0 +1,22 @@
> +#ifndef _ANALOGIX_DP_H_
> +#define _ANALOGIX_DP_H_
> +
> +#include <drm/drm_crtc.h>
> +
> +struct analogix_dp_plat_data {
> + struct drm_panel *panel;
> +
> + int (*power_on)(struct analogix_dp_plat_data *);
> + int (*power_off)(struct analogix_dp_plat_data *);
> + int (*attach)(struct analogix_dp_plat_data *, struct drm_bridge *);
> +};
> +
> +int analogix_dp_resume(struct device *dev);
> +int analogix_dp_suspend(struct device *dev);
> +
> +int analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,
> + struct drm_encoder *encoder,
> + struct analogix_dp_plat_data *plat_data);
> +void analogix_dp_unbind(struct device *dev, struct device *master, void *data);
> +
> +#endif /* _ANALOGIX_DP_H_ */
> --
> 2.1.2
On Thursday, August 06, 2015 10:49 PM, Yakir Yang wrote:
>
> Hi all,
> Samsung exynos and Rockchip rk3288 almost share same dp controller,
> so I split the common code out, then rk3288 and exynos can re-used the
> same dp core driver. Cause I can't find the exact IP name of exynos dp
> controller, so I decide to name dp core driver with "analogix" which I
> find in rk3288 eDP TRM ;)
OK, I see.
The Samsung Exynos eDP contoller and Rockchip rk3288 eDP contoller share
the same IP. So, a lot of parts can be re-used. I agree with this.
However, we have to review the code carefully, as others did.
I also cannot find the exact IP name. The "analogix" may be the vendor name
of this IP.
Best regards,
Jingoo Han
>
> Beyond that, there are three light registers setting differents bewteen
> exynos and rk3288.
> 1. RK3288 have five special pll resigters which not indicata in exynos
> dp controller.
> 2. The address of DP_PHY_PD(dp phy power manager register) are different
> between rk3288 and exynos.
> 3. Rk3288 and exynos have different setting with AUX_HW_RETRY_CTL(dp debug
> register).
>
> My series patches can be divider into two parts: One for spliting the
> analogix_dp code from exynos dp driver. Another are trying to add rk3288
> dp driver support.
>
> Best regards,
> - Yakir
>
>
> Yakir Yang (8):
> drm: exynos/dp: fix code style
> drm: exynos/dp: convert to drm bridge mode
> drm: bridge: analogix_dp: split exynos dp driver to bridge dir
> drm: rockchip/dp: add rockchip platform dp driver
> drm: bridge/analogix_dp: add platform device type support
> drm: bridge: analogix_dp: add some rk3288 special registers setting
> drm: bridge: analogix_dp: try force hpd after plug in lookup failed
> drm: bridge/analogix_dp: expand the delay time for hpd detect
>
> drivers/gpu/drm/bridge/Kconfig | 5 +
> drivers/gpu/drm/bridge/Makefile | 1 +
> drivers/gpu/drm/bridge/analogix_dp_core.c | 1397 +++++++++++++++++++
> drivers/gpu/drm/bridge/analogix_dp_core.h | 287 ++++
> drivers/gpu/drm/bridge/analogix_dp_reg.c | 1295 ++++++++++++++++++
> .../exynos_dp_reg.h => bridge/analogix_dp_reg.h} | 272 ++--
> drivers/gpu/drm/exynos/Kconfig | 5 +-
> drivers/gpu/drm/exynos/Makefile | 2 +-
> drivers/gpu/drm/exynos/analogix_dp-exynos.c | 241 ++++
> drivers/gpu/drm/exynos/exynos_dp_core.c | 1416 --------------------
> drivers/gpu/drm/exynos/exynos_dp_core.h | 282 ----
> drivers/gpu/drm/exynos/exynos_dp_reg.c | 100 +-
> drivers/gpu/drm/rockchip/Kconfig | 10 +
> drivers/gpu/drm/rockchip/Makefile | 1 +
> drivers/gpu/drm/rockchip/analogix_dp-rockchip.c | 420 ++++++
> include/drm/bridge/analogix_dp.h | 28 +
> 16 files changed, 3880 insertions(+), 1882 deletions(-)
> create mode 100644 drivers/gpu/drm/bridge/analogix_dp_core.c
> create mode 100644 drivers/gpu/drm/bridge/analogix_dp_core.h
> create mode 100644 drivers/gpu/drm/bridge/analogix_dp_reg.c
> rename drivers/gpu/drm/{exynos/exynos_dp_reg.h => bridge/analogix_dp_reg.h} (62%)
> create mode 100644 drivers/gpu/drm/exynos/analogix_dp-exynos.c
> delete mode 100644 drivers/gpu/drm/exynos/exynos_dp_core.c
> delete mode 100644 drivers/gpu/drm/exynos/exynos_dp_core.h
> create mode 100644 drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> create mode 100644 include/drm/bridge/analogix_dp.h
>
> --
> 2.1.2
Jingoo,
在 2015/8/6 22:33, Jingoo Han 写道:
> On Thursday, August 06, 2015 11:19 PM, Yakir Yang wrote:
>> Split the dp core driver from exynos directory to bridge
>> directory, and rename the core driver to analogix_dp_*,
>> leave the platform code to analogix_dp-exynos.
>>
>> Signed-off-by: Yakir Yang <[email protected]>
>> ---
>> drivers/gpu/drm/bridge/Kconfig | 5 +
>> drivers/gpu/drm/bridge/Makefile | 1 +
>> .../exynos_dp_core.c => bridge/analogix_dp_core.c} | 751 +++++-------
>> drivers/gpu/drm/bridge/analogix_dp_core.h | 286 +++++
>> drivers/gpu/drm/bridge/analogix_dp_reg.c | 1266 ++++++++++++++++++++
>> .../exynos_dp_reg.h => bridge/analogix_dp_reg.h} | 260 ++--
>> drivers/gpu/drm/exynos/Kconfig | 5 +-
>> drivers/gpu/drm/exynos/Makefile | 2 +-
>> drivers/gpu/drm/exynos/analogix_dp-exynos.c | 240 ++++
>> drivers/gpu/drm/exynos/exynos_dp_core.h | 283 -----
>> include/drm/bridge/analogix_dp.h | 22 +
>> 11 files changed, 2287 insertions(+), 834 deletions(-)
>> rename drivers/gpu/drm/{exynos/exynos_dp_core.c => bridge/analogix_dp_core.c} (54%)
>> create mode 100644 drivers/gpu/drm/bridge/analogix_dp_core.h
>> create mode 100644 drivers/gpu/drm/bridge/analogix_dp_reg.c
>> rename drivers/gpu/drm/{exynos/exynos_dp_reg.h => bridge/analogix_dp_reg.h} (63%)
>> create mode 100644 drivers/gpu/drm/exynos/analogix_dp-exynos.c
>> delete mode 100644 drivers/gpu/drm/exynos/exynos_dp_core.h
>> create mode 100644 include/drm/bridge/analogix_dp.h
>>
>> [...]
>> rename from drivers/gpu/drm/exynos/exynos_dp_core.c
>> rename to drivers/gpu/drm/bridge/analogix_dp_core.c
>> index aa99e23..28724d4 100644
>> --- a/drivers/gpu/drm/exynos/exynos_dp_core.c
>> +++ b/drivers/gpu/drm/bridge/analogix_dp_core.c
>> @@ -1,7 +1,8 @@
>> /*
>> - * Samsung SoC DP (Display Port) interface driver.
>> + * Analogix Core DP (Display Port) interface driver.
>> *
>> * Copyright (C) 2012 Samsung Electronics Co., Ltd.
>> + * Copyright (C) FuZhou Rockchip Electronics Co., Ltd.
> What is the reason to add this copyright?
> You just replace 'exynos' prefix with 'analogix' prefix.
> I cannot find the reason to add the copyright.
>
Oh! Thanks for your point out, sorry for this one
- Yakir
>> *
>> --
>> 2.1.2
>
>
>
>
Jingoo,
在 2015/8/6 22:41, Jingoo Han 写道:
> On Thursday, August 06, 2015 10:49 PM, Yakir Yang wrote:
>> Hi all,
>> Samsung exynos and Rockchip rk3288 almost share same dp controller,
>> so I split the common code out, then rk3288 and exynos can re-used the
>> same dp core driver. Cause I can't find the exact IP name of exynos dp
>> controller, so I decide to name dp core driver with "analogix" which I
>> find in rk3288 eDP TRM ;)
>
> OK, I see.
> The Samsung Exynos eDP contoller and Rockchip rk3288 eDP contoller share
> the same IP. So, a lot of parts can be re-used. I agree with this.
> However, we have to review the code carefully, as others did.
Yeah, feel happy to be reviewed ;)
> I also cannot find the exact IP name. The "analogix" may be the vendor name
> of this IP.
Okay, so "analogix" is okay for now
Thanks,
- Yakir
> Best regards,
> Jingoo Han
>
>> Beyond that, there are three light registers setting differents bewteen
>> exynos and rk3288.
>> 1. RK3288 have five special pll resigters which not indicata in exynos
>> dp controller.
>> 2. The address of DP_PHY_PD(dp phy power manager register) are different
>> between rk3288 and exynos.
>> 3. Rk3288 and exynos have different setting with AUX_HW_RETRY_CTL(dp debug
>> register).
>>
>> My series patches can be divider into two parts: One for spliting the
>> analogix_dp code from exynos dp driver. Another are trying to add rk3288
>> dp driver support.
>>
>> Best regards,
>> - Yakir
>>
>>
>> --
>> 2.1.2
>
>
>
>
On Thu, 2015-08-06 at 09:04 -0500, Yakir Yang wrote:
> make checkpatch.pl script happy
That should not be the primary reason to submit a patch.
Making it easier for human code reader to understand
what the code does should be though.
> diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c
[]
> @@ -123,10 +123,11 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
> dev_dbg(dp->dev, "EDID data includes a single extension!\n");
>
> /* Read EDID data */
> - retval = exynos_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
> - EDID_HEADER_PATTERN,
> - EDID_BLOCK_LENGTH,
> - &edid[EDID_HEADER_PATTERN]);
> + retval =
> + exynos_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
> + EDID_HEADER_PATTERN,
> + EDID_BLOCK_LENGTH,
> + &edid[EDID_HEADER_PATTERN]);
This is a relatively uncommon style.
Because the code uses relatively long variable and
function names as well as longish macro #defines,
prefer to ignore the 80 column limit.
Joe,
在 2015/8/6 23:05, Joe Perches 写道:
> On Thu, 2015-08-06 at 09:04 -0500, Yakir Yang wrote:
>> make checkpatch.pl script happy
> That should not be the primary reason to submit a patch.
>
> Making it easier for human code reader to understand
> what the code does should be though.
Thanks for your reply, but I do think that fix code style and make
checkpatch.pl passed is my primary reason to submit this patch. I can't
think out more directly words ;( ,
>> diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c
> []
>> @@ -123,10 +123,11 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
>> dev_dbg(dp->dev, "EDID data includes a single extension!\n");
>>
>> /* Read EDID data */
>> - retval = exynos_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
>> - EDID_HEADER_PATTERN,
>> - EDID_BLOCK_LENGTH,
>> - &edid[EDID_HEADER_PATTERN]);
>> + retval =
>> + exynos_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
>> + EDID_HEADER_PATTERN,
>> + EDID_BLOCK_LENGTH,
>> + &edid[EDID_HEADER_PATTERN]);
> This is a relatively uncommon style.
>
> Because the code uses relatively long variable and
> function names as well as longish macro #defines,
> prefer to ignore the 80 column limit.
Okay, I think it would be better to modify like those:
retval = exynos_dp_read_bytes_from_i2c(
dp, I2C_EDID_DEVICE_ADDR,
EDID_HEADER_PATTERN,
EDID_BLOCK_LENGTH,
&edid[EDID_HEADER_PATTERN]);
Is it okay ?
- Yakir
>
>
>
>
On Thu, Aug 06, 2015 at 10:29:29PM +0800, Yakir Yang wrote:
> Hi Jingoo,
>
> 在 2015/8/6 22:19, Jingoo Han 写道:
> >On Thursday, August 06, 2015 11:07 PM, Yakir Yang wrote:
> >>In order to move exynos dp code to bridge directory,
> >>we need to convert driver drm bridge mode first. As
> >>dp driver already have a ptn3460 bridge, so we need
> >>to move ptn bridge to the next bridge of dp bridge.
> >>
> >>Signed-off-by: Yakir Yang <[email protected]>
> >>---
> >> drivers/gpu/drm/exynos/exynos_dp_core.c | 196 ++++++++++++++++++++------------
> >> drivers/gpu/drm/exynos/exynos_dp_core.h | 2 +
> >> 2 files changed, 126 insertions(+), 72 deletions(-)
> >>
> >>diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c
> >>index a8097a4..aa99e23 100644
> >>--- a/drivers/gpu/drm/exynos/exynos_dp_core.c
> >>+++ b/drivers/gpu/drm/exynos/exynos_dp_core.c
> >>@@ -3,6 +3,7 @@
> >> *
> >> * Copyright (C) 2012 Samsung Electronics Co., Ltd.
> >> * Author: Jingoo Han <[email protected]>
> >>+ * Yakir Yang <[email protected]>
> >Please don't add this.
> >You just fixed some parts of this code. I don't find the reason
> >why you have to be added to author for this file.
> >If you want the title for an author, please send the patch
> >for a new IP, instead of modifying the exiting codes.
>
> Okay, thanks for your remind ;)
tbh the author lines are completely irrelevant, git blame/log is the
authoritative source for that. Copyright is a bit a different matter
entirely, but in general we seem to be not too good at updating.
Really if that's all you have to comment and no substantial technical
concerns or questions then just can such a bikeshed mail.
-Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
Daniel,
在 2015/8/7 19:25, Daniel Vetter 写道:
> On Thu, Aug 06, 2015 at 10:29:29PM +0800, Yakir Yang wrote:
>> Hi Jingoo,
>>
>> 在 2015/8/6 22:19, Jingoo Han 写道:
>>> On Thursday, August 06, 2015 11:07 PM, Yakir Yang wrote:
>>>> In order to move exynos dp code to bridge directory,
>>>> we need to convert driver drm bridge mode first. As
>>>> dp driver already have a ptn3460 bridge, so we need
>>>> to move ptn bridge to the next bridge of dp bridge.
>>>>
>>>> Signed-off-by: Yakir Yang <[email protected]>
>>>> ---
>>>> drivers/gpu/drm/exynos/exynos_dp_core.c | 196 ++++++++++++++++++++------------
>>>> drivers/gpu/drm/exynos/exynos_dp_core.h | 2 +
>>>> 2 files changed, 126 insertions(+), 72 deletions(-)
>>>>
>>>> diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c
>>>> index a8097a4..aa99e23 100644
>>>> --- a/drivers/gpu/drm/exynos/exynos_dp_core.c
>>>> +++ b/drivers/gpu/drm/exynos/exynos_dp_core.c
>>>> @@ -3,6 +3,7 @@
>>>> *
>>>> * Copyright (C) 2012 Samsung Electronics Co., Ltd.
>>>> * Author: Jingoo Han <[email protected]>
>>>> + * Yakir Yang <[email protected]>
>>> Please don't add this.
>>> You just fixed some parts of this code. I don't find the reason
>>> why you have to be added to author for this file.
>>> If you want the title for an author, please send the patch
>>> for a new IP, instead of modifying the exiting codes.
>> Okay, thanks for your remind ;)
> tbh the author lines are completely irrelevant, git blame/log is the
> authoritative source for that. Copyright is a bit a different matter
> entirely, but in general we seem to be not too good at updating.
Thanks for your good explain ;)
- Yakir
> Really if that's all you have to comment and no substantial technical
> concerns or questions then just can such a bikeshed mail.
> -Daniel