DSI code for VBT has a set of ugly GPIO hacks, one of which is direct
talking to GPIO IP behind the actual driver's back. A second attempt
to fix that is here.
If I understood correctly, my approach should work in the similar way as
the current IOSF GPIO.
Hans, I believe you have some devices that use this piece of code,
is it possible to give a test run on (one of) them?
In v4:
- fixed compile time errors in patch 14 (Hans, LKP)
- fixed cover letter Subject
- added patch 15 (as suggested by Ville)
- added Ack tag (Jani)
In v3:
- incorporated series by Jani
- incorporated couple of precursor patches by Hans
- added Rb tag for used to be first three patches (Andi)
- rebased on top of the above changes
- fixed indexing for multi-community devices, such as Cherry View
In v2:
- added a few cleanup patches
- reworked to use dynamic GPIO lookup tables
- converted CHV as well
Andy Shevchenko (9):
drm/i915/dsi: Replace while(1) with one with clear exit condition
drm/i915/dsi: Get rid of redundant 'else'
drm/i915/dsi: Replace check with a (missing) MIPI sequence name
drm/i915/dsi: Extract common soc_gpio_set_value() helper
drm/i915/dsi: Replace poking of VLV GPIOs behind the driver's back
drm/i915/dsi: Prepare soc_gpio_set_value() to distinguish GPIO
communities
drm/i915/dsi: Replace poking of CHV GPIOs behind the driver's back
drm/i915/dsi: Combine checks in mipi_exec_gpio()
drm/i915/iosf: Drop unused APIs
Hans de Goede (2):
drm/i915/dsi: Remove GPIO lookup table at the end of
intel_dsi_vbt_gpio_init()
drm/i915/dsi: Fix wrong initial value for GPIOs in
bxt_gpio_set_value()
Jani Nikula (5):
drm/i915/dsi: assume BXT gpio works for non-native GPIO
drm/i915/dsi: switch mipi_exec_gpio() from dev_priv to i915
drm/i915/dsi: clarify GPIO exec sequence
drm/i915/dsi: rename platform specific *_exec_gpio() to
*_gpio_set_value()
drm/i915/dsi: bxt/icl GPIO set value do not need gpio source
drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 355 +++++++------------
drivers/gpu/drm/i915/vlv_sideband.c | 17 -
drivers/gpu/drm/i915/vlv_sideband.h | 3 -
3 files changed, 136 insertions(+), 239 deletions(-)
--
2.40.0.1.gaa8946217a0b
From: Jani Nikula <[email protected]>
Drop the unused parameter.
Cc: Andy Shevchenko <[email protected]>
Cc: Hans de Goede <[email protected]>
Signed-off-by: Jani Nikula <[email protected]>
Signed-off-by: Andy Shevchenko <[email protected]>
---
drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
index f977d63a0ad4..4af43cf3cee0 100644
--- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
+++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
@@ -346,7 +346,7 @@ static void chv_gpio_set_value(struct intel_connector *connector,
}
static void bxt_gpio_set_value(struct intel_connector *connector,
- u8 gpio_source, u8 gpio_index, bool value)
+ u8 gpio_index, bool value)
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
/* XXX: this table is a quick ugly hack. */
@@ -486,13 +486,13 @@ static const u8 *mipi_exec_gpio(struct intel_dsi *intel_dsi, const u8 *data)
if (native)
icl_native_gpio_set_value(i915, gpio_number, value);
else if (DISPLAY_VER(i915) >= 11)
- bxt_gpio_set_value(connector, gpio_source, gpio_index, value);
+ bxt_gpio_set_value(connector, gpio_index, value);
else if (IS_VALLEYVIEW(i915))
vlv_gpio_set_value(connector, gpio_source, gpio_number, value);
else if (IS_CHERRYVIEW(i915))
chv_gpio_set_value(connector, gpio_source, gpio_number, value);
else
- bxt_gpio_set_value(connector, gpio_source, gpio_index, value);
+ bxt_gpio_set_value(connector, gpio_index, value);
return data + size;
}
--
2.40.0.1.gaa8946217a0b
From: Jani Nikula <[email protected]>
The lowest level functions are about setting GPIO values, not about
executing any sequences anymore.
Cc: Andy Shevchenko <[email protected]>
Cc: Hans de Goede <[email protected]>
Signed-off-by: Jani Nikula <[email protected]>
Signed-off-by: Andy Shevchenko <[email protected]>
---
drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
index 11073efe26c0..f977d63a0ad4 100644
--- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
+++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
@@ -243,8 +243,8 @@ static const u8 *mipi_exec_delay(struct intel_dsi *intel_dsi, const u8 *data)
return data;
}
-static void vlv_exec_gpio(struct intel_connector *connector,
- u8 gpio_source, u8 gpio_index, bool value)
+static void vlv_gpio_set_value(struct intel_connector *connector,
+ u8 gpio_source, u8 gpio_index, bool value)
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct gpio_map *map;
@@ -291,8 +291,8 @@ static void vlv_exec_gpio(struct intel_connector *connector,
vlv_iosf_sb_put(dev_priv, BIT(VLV_IOSF_SB_GPIO));
}
-static void chv_exec_gpio(struct intel_connector *connector,
- u8 gpio_source, u8 gpio_index, bool value)
+static void chv_gpio_set_value(struct intel_connector *connector,
+ u8 gpio_source, u8 gpio_index, bool value)
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
u16 cfg0, cfg1;
@@ -345,8 +345,8 @@ static void chv_exec_gpio(struct intel_connector *connector,
vlv_iosf_sb_put(dev_priv, BIT(VLV_IOSF_SB_GPIO));
}
-static void bxt_exec_gpio(struct intel_connector *connector,
- u8 gpio_source, u8 gpio_index, bool value)
+static void bxt_gpio_set_value(struct intel_connector *connector,
+ u8 gpio_source, u8 gpio_index, bool value)
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
/* XXX: this table is a quick ugly hack. */
@@ -486,13 +486,13 @@ static const u8 *mipi_exec_gpio(struct intel_dsi *intel_dsi, const u8 *data)
if (native)
icl_native_gpio_set_value(i915, gpio_number, value);
else if (DISPLAY_VER(i915) >= 11)
- bxt_exec_gpio(connector, gpio_source, gpio_index, value);
+ bxt_gpio_set_value(connector, gpio_source, gpio_index, value);
else if (IS_VALLEYVIEW(i915))
- vlv_exec_gpio(connector, gpio_source, gpio_number, value);
+ vlv_gpio_set_value(connector, gpio_source, gpio_number, value);
else if (IS_CHERRYVIEW(i915))
- chv_exec_gpio(connector, gpio_source, gpio_number, value);
+ chv_gpio_set_value(connector, gpio_source, gpio_number, value);
else
- bxt_exec_gpio(connector, gpio_source, gpio_index, value);
+ bxt_gpio_set_value(connector, gpio_source, gpio_index, value);
return data + size;
}
--
2.40.0.1.gaa8946217a0b
From: Hans de Goede <[email protected]>
Fix wrong initial value for GPIOs in bxt_gpio_set_value().
Signed-off-by: Hans de Goede <[email protected]>
Signed-off-by: Andy Shevchenko <[email protected]>
Acked-by: Jani Nikula <[email protected]>
---
drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
index 8e6beef90e5e..0f9da0168a7b 100644
--- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
+++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
@@ -356,9 +356,7 @@ static void bxt_gpio_set_value(struct intel_connector *connector,
if (!gpio_desc) {
gpio_desc = devm_gpiod_get_index(dev_priv->drm.dev,
NULL, gpio_index,
- value ? GPIOD_OUT_LOW :
- GPIOD_OUT_HIGH);
-
+ value ? GPIOD_OUT_HIGH : GPIOD_OUT_LOW);
if (IS_ERR_OR_NULL(gpio_desc)) {
drm_err(&dev_priv->drm,
"GPIO index %u request failed (%ld)\n",
--
2.40.0.1.gaa8946217a0b
Move existing condition to while(), so it will be clear on what
circumstances the loop is successfully finishing.
Reviewed-by: Andi Shyti <[email protected]>
Signed-off-by: Andy Shevchenko <[email protected]>
Acked-by: Jani Nikula <[email protected]>
---
drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
index 4af43cf3cee0..290a112f1b63 100644
--- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
+++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
@@ -702,13 +702,10 @@ static void intel_dsi_vbt_exec(struct intel_dsi *intel_dsi,
if (connector->panel.vbt.dsi.seq_version >= 3)
data += 4;
- while (1) {
+ while (*data != MIPI_SEQ_ELEM_END) {
u8 operation_byte = *data++;
u8 operation_size = 0;
- if (operation_byte == MIPI_SEQ_ELEM_END)
- break;
-
if (operation_byte < ARRAY_SIZE(exec_elem))
mipi_elem_exec = exec_elem[operation_byte];
else
--
2.40.0.1.gaa8946217a0b
Extract a common soc_gpio_set_value() helper that may be used by a few SoCs.
Signed-off-by: Andy Shevchenko <[email protected]>
Acked-by: Jani Nikula <[email protected]>
---
drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 46 +++++++++++---------
1 file changed, 26 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
index 0f9da0168a7b..9847a92fdfc3 100644
--- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
+++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
@@ -243,6 +243,31 @@ static const u8 *mipi_exec_delay(struct intel_dsi *intel_dsi, const u8 *data)
return data;
}
+static void soc_gpio_set_value(struct intel_connector *connector, const char *con_id,
+ u8 gpio_index, bool value)
+{
+ struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ /* XXX: this table is a quick ugly hack. */
+ static struct gpio_desc *soc_gpio_table[U8_MAX + 1];
+ struct gpio_desc *gpio_desc = soc_gpio_table[gpio_index];
+
+ if (gpio_desc) {
+ gpiod_set_value(gpio_desc, value);
+ } else {
+ gpio_desc = devm_gpiod_get_index(dev_priv->drm.dev,
+ con_id, gpio_index,
+ value ? GPIOD_OUT_HIGH : GPIOD_OUT_LOW);
+ if (IS_ERR(gpio_desc)) {
+ drm_err(&dev_priv->drm,
+ "GPIO index %u request failed (%pe)\n",
+ gpio_index, gpio_desc);
+ return;
+ }
+
+ soc_gpio_table[gpio_index] = gpio_desc;
+ }
+}
+
static void vlv_gpio_set_value(struct intel_connector *connector,
u8 gpio_source, u8 gpio_index, bool value)
{
@@ -348,26 +373,7 @@ static void chv_gpio_set_value(struct intel_connector *connector,
static void bxt_gpio_set_value(struct intel_connector *connector,
u8 gpio_index, bool value)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
- /* XXX: this table is a quick ugly hack. */
- static struct gpio_desc *bxt_gpio_table[U8_MAX + 1];
- struct gpio_desc *gpio_desc = bxt_gpio_table[gpio_index];
-
- if (!gpio_desc) {
- gpio_desc = devm_gpiod_get_index(dev_priv->drm.dev,
- NULL, gpio_index,
- value ? GPIOD_OUT_HIGH : GPIOD_OUT_LOW);
- if (IS_ERR_OR_NULL(gpio_desc)) {
- drm_err(&dev_priv->drm,
- "GPIO index %u request failed (%ld)\n",
- gpio_index, PTR_ERR(gpio_desc));
- return;
- }
-
- bxt_gpio_table[gpio_index] = gpio_desc;
- }
-
- gpiod_set_value(gpio_desc, value);
+ soc_gpio_set_value(connector, NULL, gpio_index, value);
}
enum {
--
2.40.0.1.gaa8946217a0b
In the snippets like the following
if (...)
return / goto / break / continue ...;
else
...
the 'else' is redundant. Get rid of it.
Reviewed-by: Andi Shyti <[email protected]>
Signed-off-by: Andy Shevchenko <[email protected]>
Acked-by: Jani Nikula <[email protected]>
---
drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 58 ++++++++++----------
1 file changed, 28 insertions(+), 30 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
index 290a112f1b63..4ed5ede9ec5b 100644
--- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
+++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
@@ -142,7 +142,7 @@ static enum port intel_dsi_seq_port_to_port(struct intel_dsi *intel_dsi,
if (seq_port) {
if (intel_dsi->ports & BIT(PORT_B))
return PORT_B;
- else if (intel_dsi->ports & BIT(PORT_C))
+ if (intel_dsi->ports & BIT(PORT_C))
return PORT_C;
}
@@ -670,8 +670,8 @@ static const char *sequence_name(enum mipi_seq seq_id)
{
if (seq_id < ARRAY_SIZE(seq_name) && seq_name[seq_id])
return seq_name[seq_id];
- else
- return "(unknown)";
+
+ return "(unknown)";
}
static void intel_dsi_vbt_exec(struct intel_dsi *intel_dsi,
@@ -865,36 +865,34 @@ bool intel_dsi_vbt_init(struct intel_dsi *intel_dsi, u16 panel_id)
* multiply by 100 to preserve remainder
*/
if (intel_dsi->video_mode == BURST_MODE) {
- if (mipi_config->target_burst_mode_freq) {
- u32 bitrate = intel_dsi_bitrate(intel_dsi);
+ u32 bitrate;
- /*
- * Sometimes the VBT contains a slightly lower clock,
- * then the bitrate we have calculated, in this case
- * just replace it with the calculated bitrate.
- */
- if (mipi_config->target_burst_mode_freq < bitrate &&
- intel_fuzzy_clock_check(
- mipi_config->target_burst_mode_freq,
- bitrate))
- mipi_config->target_burst_mode_freq = bitrate;
-
- if (mipi_config->target_burst_mode_freq < bitrate) {
- drm_err(&dev_priv->drm,
- "Burst mode freq is less than computed\n");
- return false;
- }
-
- burst_mode_ratio = DIV_ROUND_UP(
- mipi_config->target_burst_mode_freq * 100,
- bitrate);
-
- intel_dsi->pclk = DIV_ROUND_UP(intel_dsi->pclk * burst_mode_ratio, 100);
- } else {
- drm_err(&dev_priv->drm,
- "Burst mode target is not set\n");
+ if (mipi_config->target_burst_mode_freq == 0) {
+ drm_err(&dev_priv->drm, "Burst mode target is not set\n");
return false;
}
+
+ bitrate = intel_dsi_bitrate(intel_dsi);
+
+ /*
+ * Sometimes the VBT contains a slightly lower clock, then
+ * the bitrate we have calculated, in this case just replace it
+ * with the calculated bitrate.
+ */
+ if (mipi_config->target_burst_mode_freq < bitrate &&
+ intel_fuzzy_clock_check(mipi_config->target_burst_mode_freq,
+ bitrate))
+ mipi_config->target_burst_mode_freq = bitrate;
+
+ if (mipi_config->target_burst_mode_freq < bitrate) {
+ drm_err(&dev_priv->drm, "Burst mode freq is less than computed\n");
+ return false;
+ }
+
+ burst_mode_ratio =
+ DIV_ROUND_UP(mipi_config->target_burst_mode_freq * 100, bitrate);
+
+ intel_dsi->pclk = DIV_ROUND_UP(intel_dsi->pclk * burst_mode_ratio, 100);
} else
burst_mode_ratio = 100;
--
2.40.0.1.gaa8946217a0b
Names of the MIPI sequence steps are sequential and defined, no
need to check for the gaps. However in seq_name the MIPI_SEQ_END
is missing. Add it there, and drop unneeded NULL check in
sequence_name().
Reviewed-by: Andi Shyti <[email protected]>
Signed-off-by: Andy Shevchenko <[email protected]>
Acked-by: Jani Nikula <[email protected]>
---
drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
index 4ed5ede9ec5b..d270437217b3 100644
--- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
+++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
@@ -653,6 +653,7 @@ static const fn_mipi_elem_exec exec_elem[] = {
*/
static const char * const seq_name[] = {
+ [MIPI_SEQ_END] = "MIPI_SEQ_END",
[MIPI_SEQ_DEASSERT_RESET] = "MIPI_SEQ_DEASSERT_RESET",
[MIPI_SEQ_INIT_OTP] = "MIPI_SEQ_INIT_OTP",
[MIPI_SEQ_DISPLAY_ON] = "MIPI_SEQ_DISPLAY_ON",
@@ -668,7 +669,7 @@ static const char * const seq_name[] = {
static const char *sequence_name(enum mipi_seq seq_id)
{
- if (seq_id < ARRAY_SIZE(seq_name) && seq_name[seq_id])
+ if (seq_id < ARRAY_SIZE(seq_name))
return seq_name[seq_id];
return "(unknown)";
--
2.40.0.1.gaa8946217a0b
It's a dirty hack in the driver that pokes GPIO registers behind
the driver's back. Moreoever it might be problematic as simultaneous
I/O may hang the system, see the commit 40ecab551232 ("pinctrl:
baytrail: Really serialize all register accesses") for the details.
Taking all this into consideration replace the hack with proper
GPIO APIs being used.
Signed-off-by: Andy Shevchenko <[email protected]>
Acked-by: Jani Nikula <[email protected]>
---
drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 98 ++++++--------------
1 file changed, 28 insertions(+), 70 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
index 9847a92fdfc3..552bc6564d79 100644
--- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
+++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
@@ -55,43 +55,6 @@
#define MIPI_VIRTUAL_CHANNEL_SHIFT 1
#define MIPI_PORT_SHIFT 3
-/* base offsets for gpio pads */
-#define VLV_GPIO_NC_0_HV_DDI0_HPD 0x4130
-#define VLV_GPIO_NC_1_HV_DDI0_DDC_SDA 0x4120
-#define VLV_GPIO_NC_2_HV_DDI0_DDC_SCL 0x4110
-#define VLV_GPIO_NC_3_PANEL0_VDDEN 0x4140
-#define VLV_GPIO_NC_4_PANEL0_BKLTEN 0x4150
-#define VLV_GPIO_NC_5_PANEL0_BKLTCTL 0x4160
-#define VLV_GPIO_NC_6_HV_DDI1_HPD 0x4180
-#define VLV_GPIO_NC_7_HV_DDI1_DDC_SDA 0x4190
-#define VLV_GPIO_NC_8_HV_DDI1_DDC_SCL 0x4170
-#define VLV_GPIO_NC_9_PANEL1_VDDEN 0x4100
-#define VLV_GPIO_NC_10_PANEL1_BKLTEN 0x40E0
-#define VLV_GPIO_NC_11_PANEL1_BKLTCTL 0x40F0
-
-#define VLV_GPIO_PCONF0(base_offset) (base_offset)
-#define VLV_GPIO_PAD_VAL(base_offset) ((base_offset) + 8)
-
-struct gpio_map {
- u16 base_offset;
- bool init;
-};
-
-static struct gpio_map vlv_gpio_table[] = {
- { VLV_GPIO_NC_0_HV_DDI0_HPD },
- { VLV_GPIO_NC_1_HV_DDI0_DDC_SDA },
- { VLV_GPIO_NC_2_HV_DDI0_DDC_SCL },
- { VLV_GPIO_NC_3_PANEL0_VDDEN },
- { VLV_GPIO_NC_4_PANEL0_BKLTEN },
- { VLV_GPIO_NC_5_PANEL0_BKLTCTL },
- { VLV_GPIO_NC_6_HV_DDI1_HPD },
- { VLV_GPIO_NC_7_HV_DDI1_DDC_SDA },
- { VLV_GPIO_NC_8_HV_DDI1_DDC_SCL },
- { VLV_GPIO_NC_9_PANEL1_VDDEN },
- { VLV_GPIO_NC_10_PANEL1_BKLTEN },
- { VLV_GPIO_NC_11_PANEL1_BKLTCTL },
-};
-
struct i2c_adapter_lookup {
u16 slave_addr;
struct intel_dsi *intel_dsi;
@@ -268,52 +231,47 @@ static void soc_gpio_set_value(struct intel_connector *connector, const char *co
}
}
+static void soc_opaque_gpio_set_value(struct intel_connector *connector,
+ const char *chip, const char *con_id,
+ u8 gpio_index, bool value)
+{
+ struct gpiod_lookup_table *lookup;
+
+ lookup = kzalloc(struct_size(lookup, table, 2), GFP_KERNEL);
+ if (!lookup)
+ return;
+
+ lookup->dev_id = "0000:00:02.0";
+ lookup->table[0] =
+ GPIO_LOOKUP_IDX(chip, gpio_index, con_id, gpio_index, GPIO_ACTIVE_HIGH);
+
+ gpiod_add_lookup_table(lookup);
+
+ soc_gpio_set_value(connector, con_id, gpio_index, value);
+
+ gpiod_remove_lookup_table(lookup);
+ kfree(lookup);
+}
+
static void vlv_gpio_set_value(struct intel_connector *connector,
u8 gpio_source, u8 gpio_index, bool value)
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
- struct gpio_map *map;
- u16 pconf0, padval;
- u32 tmp;
- u8 port;
- if (gpio_index >= ARRAY_SIZE(vlv_gpio_table)) {
- drm_dbg_kms(&dev_priv->drm, "unknown gpio index %u\n",
- gpio_index);
- return;
- }
-
- map = &vlv_gpio_table[gpio_index];
-
- if (connector->panel.vbt.dsi.seq_version >= 3) {
- /* XXX: this assumes vlv_gpio_table only has NC GPIOs. */
- port = IOSF_PORT_GPIO_NC;
- } else {
- if (gpio_source == 0) {
- port = IOSF_PORT_GPIO_NC;
- } else if (gpio_source == 1) {
+ /* XXX: this assumes vlv_gpio_table only has NC GPIOs. */
+ if (connector->panel.vbt.dsi.seq_version < 3) {
+ if (gpio_source == 1) {
drm_dbg_kms(&dev_priv->drm, "SC gpio not supported\n");
return;
- } else {
+ }
+ if (gpio_source > 1) {
drm_dbg_kms(&dev_priv->drm,
"unknown gpio source %u\n", gpio_source);
return;
}
}
- pconf0 = VLV_GPIO_PCONF0(map->base_offset);
- padval = VLV_GPIO_PAD_VAL(map->base_offset);
-
- vlv_iosf_sb_get(dev_priv, BIT(VLV_IOSF_SB_GPIO));
- if (!map->init) {
- /* FIXME: remove constant below */
- vlv_iosf_sb_write(dev_priv, port, pconf0, 0x2000CC00);
- map->init = true;
- }
-
- tmp = 0x4 | value;
- vlv_iosf_sb_write(dev_priv, port, padval, tmp);
- vlv_iosf_sb_put(dev_priv, BIT(VLV_IOSF_SB_GPIO));
+ soc_opaque_gpio_set_value(connector, "INT33FC:01", "Panel N", gpio_index, value);
}
static void chv_gpio_set_value(struct intel_connector *connector,
--
2.40.0.1.gaa8946217a0b
It's a dirty hack in the driver that pokes GPIO registers behind
the driver's back. Moreoever it might be problematic as simultaneous
I/O may hang the system, see the commit 0bd50d719b00 ("pinctrl:
cherryview: prevent concurrent access to GPIO controllers") for
the details. Taking all this into consideration replace the hack
with proper GPIO APIs being used.
Signed-off-by: Andy Shevchenko <[email protected]>
Acked-by: Jani Nikula <[email protected]>
---
drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 47 +++++---------------
1 file changed, 10 insertions(+), 37 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
index b1736c1301ea..9c6946ccb193 100644
--- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
+++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
@@ -66,19 +66,6 @@ struct i2c_adapter_lookup {
#define CHV_GPIO_IDX_START_SW 100
#define CHV_GPIO_IDX_START_SE 198
-#define CHV_VBT_MAX_PINS_PER_FMLY 15
-
-#define CHV_GPIO_PAD_CFG0(f, i) (0x4400 + (f) * 0x400 + (i) * 8)
-#define CHV_GPIO_GPIOEN (1 << 15)
-#define CHV_GPIO_GPIOCFG_GPIO (0 << 8)
-#define CHV_GPIO_GPIOCFG_GPO (1 << 8)
-#define CHV_GPIO_GPIOCFG_GPI (2 << 8)
-#define CHV_GPIO_GPIOCFG_HIZ (3 << 8)
-#define CHV_GPIO_GPIOTXSTATE(state) ((!!(state)) << 1)
-
-#define CHV_GPIO_PAD_CFG1(f, i) (0x4400 + (f) * 0x400 + (i) * 8 + 4)
-#define CHV_GPIO_CFGLOCK (1 << 31)
-
/* ICL DSI Display GPIO Pins */
#define ICL_GPIO_DDSP_HPD_A 0
#define ICL_GPIO_L_VDDEN_1 1
@@ -278,23 +265,21 @@ static void chv_gpio_set_value(struct intel_connector *connector,
u8 gpio_source, u8 gpio_index, bool value)
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
- u16 cfg0, cfg1;
- u16 family_num;
- u8 port;
if (connector->panel.vbt.dsi.seq_version >= 3) {
if (gpio_index >= CHV_GPIO_IDX_START_SE) {
/* XXX: it's unclear whether 255->57 is part of SE. */
- gpio_index -= CHV_GPIO_IDX_START_SE;
- port = CHV_IOSF_PORT_GPIO_SE;
+ soc_opaque_gpio_set_value(connector, gpio_index, "INT33FF:03", "Panel SE",
+ gpio_index - CHV_GPIO_IDX_START_SE, value);
} else if (gpio_index >= CHV_GPIO_IDX_START_SW) {
- gpio_index -= CHV_GPIO_IDX_START_SW;
- port = CHV_IOSF_PORT_GPIO_SW;
+ soc_opaque_gpio_set_value(connector, gpio_index, "INT33FF:00", "Panel SW",
+ gpio_index - CHV_GPIO_IDX_START_SW, value);
} else if (gpio_index >= CHV_GPIO_IDX_START_E) {
- gpio_index -= CHV_GPIO_IDX_START_E;
- port = CHV_IOSF_PORT_GPIO_E;
+ soc_opaque_gpio_set_value(connector, gpio_index, "INT33FF:02", "Panel E",
+ gpio_index - CHV_GPIO_IDX_START_E, value);
} else {
- port = CHV_IOSF_PORT_GPIO_N;
+ soc_opaque_gpio_set_value(connector, gpio_index, "INT33FF:01", "Panel N",
+ gpio_index - CHV_GPIO_IDX_START_N, value);
}
} else {
/* XXX: The spec is unclear about CHV GPIO on seq v2 */
@@ -311,21 +296,9 @@ static void chv_gpio_set_value(struct intel_connector *connector,
return;
}
- port = CHV_IOSF_PORT_GPIO_N;
+ soc_opaque_gpio_set_value(connector, gpio_index, "INT33FF:01", "Panel N",
+ gpio_index - CHV_GPIO_IDX_START_N, value);
}
-
- family_num = gpio_index / CHV_VBT_MAX_PINS_PER_FMLY;
- gpio_index = gpio_index % CHV_VBT_MAX_PINS_PER_FMLY;
-
- cfg0 = CHV_GPIO_PAD_CFG0(family_num, gpio_index);
- cfg1 = CHV_GPIO_PAD_CFG1(family_num, gpio_index);
-
- vlv_iosf_sb_get(dev_priv, BIT(VLV_IOSF_SB_GPIO));
- vlv_iosf_sb_write(dev_priv, port, cfg1, 0);
- vlv_iosf_sb_write(dev_priv, port, cfg0,
- CHV_GPIO_GPIOEN | CHV_GPIO_GPIOCFG_GPO |
- CHV_GPIO_GPIOTXSTATE(value));
- vlv_iosf_sb_put(dev_priv, BIT(VLV_IOSF_SB_GPIO));
}
static void bxt_gpio_set_value(struct intel_connector *connector,
--
2.40.0.1.gaa8946217a0b
Drop unused vlv_iosf_sb_read() and vlv_iosf_sb_write().
Signed-off-by: Andy Shevchenko <[email protected]>
Acked-by: Jani Nikula <[email protected]>
---
drivers/gpu/drm/i915/vlv_sideband.c | 17 -----------------
drivers/gpu/drm/i915/vlv_sideband.h | 3 ---
2 files changed, 20 deletions(-)
diff --git a/drivers/gpu/drm/i915/vlv_sideband.c b/drivers/gpu/drm/i915/vlv_sideband.c
index b98dec3ad817..13b644958e38 100644
--- a/drivers/gpu/drm/i915/vlv_sideband.c
+++ b/drivers/gpu/drm/i915/vlv_sideband.c
@@ -166,23 +166,6 @@ u32 vlv_nc_read(struct drm_i915_private *i915, u8 addr)
return val;
}
-u32 vlv_iosf_sb_read(struct drm_i915_private *i915, u8 port, u32 reg)
-{
- u32 val = 0;
-
- vlv_sideband_rw(i915, PCI_DEVFN(0, 0), port,
- SB_CRRDDA_NP, reg, &val);
-
- return val;
-}
-
-void vlv_iosf_sb_write(struct drm_i915_private *i915,
- u8 port, u32 reg, u32 val)
-{
- vlv_sideband_rw(i915, PCI_DEVFN(0, 0), port,
- SB_CRWRDA_NP, reg, &val);
-}
-
u32 vlv_cck_read(struct drm_i915_private *i915, u32 reg)
{
u32 val = 0;
diff --git a/drivers/gpu/drm/i915/vlv_sideband.h b/drivers/gpu/drm/i915/vlv_sideband.h
index 9ce283d96b80..8b4495e14bce 100644
--- a/drivers/gpu/drm/i915/vlv_sideband.h
+++ b/drivers/gpu/drm/i915/vlv_sideband.h
@@ -26,9 +26,6 @@ enum {
};
void vlv_iosf_sb_get(struct drm_i915_private *i915, unsigned long ports);
-u32 vlv_iosf_sb_read(struct drm_i915_private *i915, u8 port, u32 reg);
-void vlv_iosf_sb_write(struct drm_i915_private *i915,
- u8 port, u32 reg, u32 val);
void vlv_iosf_sb_put(struct drm_i915_private *i915, unsigned long ports);
static inline void vlv_bunit_get(struct drm_i915_private *i915)
--
2.40.0.1.gaa8946217a0b
From: Hans de Goede <[email protected]>
To properly deal with GPIOs used in MIPI panel sequences a temporary
GPIO lookup will be used. Since there can only be 1 GPIO lookup table
for the "0000:00:02.0" device this will not work if the GPIO lookup
table used by intel_dsi_vbt_gpio_init() is still registered.
After getting the "backlight" and "panel" GPIOs the lookup table
registered by intel_dsi_vbt_gpio_init() is no longer necessary,
remove it so that another temporary lookup-table for the "0000:00:02.0"
device can be added.
Signed-off-by: Hans de Goede <[email protected]>
Signed-off-by: Andy Shevchenko <[email protected]>
Acked-by: Jani Nikula <[email protected]>
---
drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 25 +++++++-------------
1 file changed, 9 insertions(+), 16 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
index d270437217b3..8e6beef90e5e 100644
--- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
+++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
@@ -955,6 +955,7 @@ void intel_dsi_vbt_gpio_init(struct intel_dsi *intel_dsi, bool panel_is_on)
struct intel_connector *connector = intel_dsi->attached_connector;
struct mipi_config *mipi_config = connector->panel.vbt.dsi.config;
enum gpiod_flags flags = panel_is_on ? GPIOD_OUT_HIGH : GPIOD_OUT_LOW;
+ struct gpiod_lookup_table *gpiod_lookup_table = NULL;
bool want_backlight_gpio = false;
bool want_panel_gpio = false;
struct pinctrl *pinctrl;
@@ -962,12 +963,12 @@ void intel_dsi_vbt_gpio_init(struct intel_dsi *intel_dsi, bool panel_is_on)
if ((IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) &&
mipi_config->pwm_blc == PPS_BLC_PMIC) {
- gpiod_add_lookup_table(&pmic_panel_gpio_table);
+ gpiod_lookup_table = &pmic_panel_gpio_table;
want_panel_gpio = true;
}
if (IS_VALLEYVIEW(dev_priv) && mipi_config->pwm_blc == PPS_BLC_SOC) {
- gpiod_add_lookup_table(&soc_panel_gpio_table);
+ gpiod_lookup_table = &soc_panel_gpio_table;
want_panel_gpio = true;
want_backlight_gpio = true;
@@ -984,6 +985,9 @@ void intel_dsi_vbt_gpio_init(struct intel_dsi *intel_dsi, bool panel_is_on)
"Failed to set pinmux to PWM\n");
}
+ if (gpiod_lookup_table)
+ gpiod_add_lookup_table(gpiod_lookup_table);
+
if (want_panel_gpio) {
intel_dsi->gpio_panel = gpiod_get(dev->dev, "panel", flags);
if (IS_ERR(intel_dsi->gpio_panel)) {
@@ -1002,15 +1006,13 @@ void intel_dsi_vbt_gpio_init(struct intel_dsi *intel_dsi, bool panel_is_on)
intel_dsi->gpio_backlight = NULL;
}
}
+
+ if (gpiod_lookup_table)
+ gpiod_remove_lookup_table(gpiod_lookup_table);
}
void intel_dsi_vbt_gpio_cleanup(struct intel_dsi *intel_dsi)
{
- struct drm_device *dev = intel_dsi->base.base.dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
- struct intel_connector *connector = intel_dsi->attached_connector;
- struct mipi_config *mipi_config = connector->panel.vbt.dsi.config;
-
if (intel_dsi->gpio_panel) {
gpiod_put(intel_dsi->gpio_panel);
intel_dsi->gpio_panel = NULL;
@@ -1020,13 +1022,4 @@ void intel_dsi_vbt_gpio_cleanup(struct intel_dsi *intel_dsi)
gpiod_put(intel_dsi->gpio_backlight);
intel_dsi->gpio_backlight = NULL;
}
-
- if ((IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) &&
- mipi_config->pwm_blc == PPS_BLC_PMIC)
- gpiod_remove_lookup_table(&pmic_panel_gpio_table);
-
- if (IS_VALLEYVIEW(dev_priv) && mipi_config->pwm_blc == PPS_BLC_SOC) {
- pinctrl_unregister_mappings(soc_pwm_pinctrl_map);
- gpiod_remove_lookup_table(&soc_panel_gpio_table);
- }
}
--
2.40.0.1.gaa8946217a0b
For a couple of cases the branches call the same bxt_gpio_set_value().
As Ville suggested they can be combined by dropping the DISPLAY_VER()
check from Gen 11 to Gen 9. Do it that way.
Suggested-by: Ville Syrjälä <[email protected]>
Signed-off-by: Andy Shevchenko <[email protected]>
---
drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
index 9c6946ccb193..275d0218394c 100644
--- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
+++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
@@ -420,14 +420,12 @@ static const u8 *mipi_exec_gpio(struct intel_dsi *intel_dsi, const u8 *data)
if (native)
icl_native_gpio_set_value(i915, gpio_number, value);
- else if (DISPLAY_VER(i915) >= 11)
+ else if (DISPLAY_VER(i915) >= 9)
bxt_gpio_set_value(connector, gpio_index, value);
else if (IS_VALLEYVIEW(i915))
vlv_gpio_set_value(connector, gpio_source, gpio_number, value);
else if (IS_CHERRYVIEW(i915))
chv_gpio_set_value(connector, gpio_source, gpio_number, value);
- else
- bxt_gpio_set_value(connector, gpio_index, value);
return data + size;
}
--
2.40.0.1.gaa8946217a0b
Currently soc_gpio_set_value() supports only a single indexing for GPIO pin.
For CHV case, for example, we will need to distinguish community based index
from the one that VBT is using. Introduce an additional parameter to
soc_gpio_set_value() and its callers.
Signed-off-by: Andy Shevchenko <[email protected]>
Acked-by: Jani Nikula <[email protected]>
---
drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
index 552bc6564d79..b1736c1301ea 100644
--- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
+++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
@@ -206,8 +206,8 @@ static const u8 *mipi_exec_delay(struct intel_dsi *intel_dsi, const u8 *data)
return data;
}
-static void soc_gpio_set_value(struct intel_connector *connector, const char *con_id,
- u8 gpio_index, bool value)
+static void soc_gpio_set_value(struct intel_connector *connector, u8 gpio_index,
+ const char *con_id, u8 idx, bool value)
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
/* XXX: this table is a quick ugly hack. */
@@ -217,8 +217,7 @@ static void soc_gpio_set_value(struct intel_connector *connector, const char *co
if (gpio_desc) {
gpiod_set_value(gpio_desc, value);
} else {
- gpio_desc = devm_gpiod_get_index(dev_priv->drm.dev,
- con_id, gpio_index,
+ gpio_desc = devm_gpiod_get_index(dev_priv->drm.dev, con_id, idx,
value ? GPIOD_OUT_HIGH : GPIOD_OUT_LOW);
if (IS_ERR(gpio_desc)) {
drm_err(&dev_priv->drm,
@@ -232,8 +231,8 @@ static void soc_gpio_set_value(struct intel_connector *connector, const char *co
}
static void soc_opaque_gpio_set_value(struct intel_connector *connector,
- const char *chip, const char *con_id,
- u8 gpio_index, bool value)
+ u8 gpio_index, const char *chip,
+ const char *con_id, u8 idx, bool value)
{
struct gpiod_lookup_table *lookup;
@@ -243,11 +242,11 @@ static void soc_opaque_gpio_set_value(struct intel_connector *connector,
lookup->dev_id = "0000:00:02.0";
lookup->table[0] =
- GPIO_LOOKUP_IDX(chip, gpio_index, con_id, gpio_index, GPIO_ACTIVE_HIGH);
+ GPIO_LOOKUP_IDX(chip, idx, con_id, idx, GPIO_ACTIVE_HIGH);
gpiod_add_lookup_table(lookup);
- soc_gpio_set_value(connector, con_id, gpio_index, value);
+ soc_gpio_set_value(connector, gpio_index, con_id, idx, value);
gpiod_remove_lookup_table(lookup);
kfree(lookup);
@@ -271,7 +270,8 @@ static void vlv_gpio_set_value(struct intel_connector *connector,
}
}
- soc_opaque_gpio_set_value(connector, "INT33FC:01", "Panel N", gpio_index, value);
+ soc_opaque_gpio_set_value(connector, gpio_index,
+ "INT33FC:01", "Panel N", gpio_index, value);
}
static void chv_gpio_set_value(struct intel_connector *connector,
@@ -331,7 +331,7 @@ static void chv_gpio_set_value(struct intel_connector *connector,
static void bxt_gpio_set_value(struct intel_connector *connector,
u8 gpio_index, bool value)
{
- soc_gpio_set_value(connector, NULL, gpio_index, value);
+ soc_gpio_set_value(connector, gpio_index, NULL, gpio_index, value);
}
enum {
--
2.40.0.1.gaa8946217a0b
Hi,
On 11/3/23 21:18, Andy Shevchenko wrote:
> DSI code for VBT has a set of ugly GPIO hacks, one of which is direct
> talking to GPIO IP behind the actual driver's back. A second attempt
> to fix that is here.
>
> If I understood correctly, my approach should work in the similar way as
> the current IOSF GPIO.
>
> Hans, I believe you have some devices that use this piece of code,
> is it possible to give a test run on (one of) them?
Ok, this now has been testen on both a BYT and a CHT device which
actually use GPIO controls in their MIPI sequences so this
series is:
Tested-by: Hans de Goede <[email protected]>
And the code of the entire series also looks good to me:
Reviewed-by: Hans de Goede <[email protected]>
for the series.
Regards,
Hans
> In v4:
> - fixed compile time errors in patch 14 (Hans, LKP)
> - fixed cover letter Subject
> - added patch 15 (as suggested by Ville)
> - added Ack tag (Jani)
>
> In v3:
> - incorporated series by Jani
> - incorporated couple of precursor patches by Hans
> - added Rb tag for used to be first three patches (Andi)
> - rebased on top of the above changes
> - fixed indexing for multi-community devices, such as Cherry View
>
> In v2:
> - added a few cleanup patches
> - reworked to use dynamic GPIO lookup tables
> - converted CHV as well
>
> Andy Shevchenko (9):
> drm/i915/dsi: Replace while(1) with one with clear exit condition
> drm/i915/dsi: Get rid of redundant 'else'
> drm/i915/dsi: Replace check with a (missing) MIPI sequence name
> drm/i915/dsi: Extract common soc_gpio_set_value() helper
> drm/i915/dsi: Replace poking of VLV GPIOs behind the driver's back
> drm/i915/dsi: Prepare soc_gpio_set_value() to distinguish GPIO
> communities
> drm/i915/dsi: Replace poking of CHV GPIOs behind the driver's back
> drm/i915/dsi: Combine checks in mipi_exec_gpio()
> drm/i915/iosf: Drop unused APIs
>
> Hans de Goede (2):
> drm/i915/dsi: Remove GPIO lookup table at the end of
> intel_dsi_vbt_gpio_init()
> drm/i915/dsi: Fix wrong initial value for GPIOs in
> bxt_gpio_set_value()
>
> Jani Nikula (5):
> drm/i915/dsi: assume BXT gpio works for non-native GPIO
> drm/i915/dsi: switch mipi_exec_gpio() from dev_priv to i915
> drm/i915/dsi: clarify GPIO exec sequence
> drm/i915/dsi: rename platform specific *_exec_gpio() to
> *_gpio_set_value()
> drm/i915/dsi: bxt/icl GPIO set value do not need gpio source
>
> drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 355 +++++++------------
> drivers/gpu/drm/i915/vlv_sideband.c | 17 -
> drivers/gpu/drm/i915/vlv_sideband.h | 3 -
> 3 files changed, 136 insertions(+), 239 deletions(-)
>
On Thu, 16 Nov 2023, Hans de Goede <[email protected]> wrote:
> Ok, this now has been testen on both a BYT and a CHT device which
> actually use GPIO controls in their MIPI sequences so this
> series is:
>
> Tested-by: Hans de Goede <[email protected]>
>
> And the code of the entire series also looks good to me:
>
> Reviewed-by: Hans de Goede <[email protected]>
>
> for the series.
Thanks Andy & Hans!
I'll merge this once the test results are in. The BAT results have been
a bit flaky recently, so needed to do a rerun.
That said, I'm not sure if we have any hardware in CI that would
actually exercise the modifications, so in that sense I trust Hans'
testing much more.
BR,
Jani.
--
Jani Nikula, Intel
On Thu, Nov 16, 2023 at 12:15:03PM +0200, Jani Nikula wrote:
> On Thu, 16 Nov 2023, Hans de Goede <[email protected]> wrote:
> > Ok, this now has been testen on both a BYT and a CHT device which
> > actually use GPIO controls in their MIPI sequences so this
> > series is:
> >
> > Tested-by: Hans de Goede <[email protected]>
> >
> > And the code of the entire series also looks good to me:
> >
> > Reviewed-by: Hans de Goede <[email protected]>
> >
> > for the series.
>
> Thanks Andy & Hans!
>
> I'll merge this once the test results are in. The BAT results have been
> a bit flaky recently, so needed to do a rerun.
>
> That said, I'm not sure if we have any hardware in CI that would
> actually exercise the modifications, so in that sense I trust Hans'
> testing much more.
Thank you!
Should I fix checkpatch warnings CI reported about?
--
With Best Regards,
Andy Shevchenko
On Thu, Nov 16, 2023 at 09:58:06AM +0100, Hans de Goede wrote:
> On 11/3/23 21:18, Andy Shevchenko wrote:
> > DSI code for VBT has a set of ugly GPIO hacks, one of which is direct
> > talking to GPIO IP behind the actual driver's back. A second attempt
> > to fix that is here.
> >
> > If I understood correctly, my approach should work in the similar way as
> > the current IOSF GPIO.
> >
> > Hans, I believe you have some devices that use this piece of code,
> > is it possible to give a test run on (one of) them?
>
> Ok, this now has been testen on both a BYT and a CHT device which
> actually use GPIO controls in their MIPI sequences so this
> series is:
>
> Tested-by: Hans de Goede <[email protected]>
>
> And the code of the entire series also looks good to me:
>
> Reviewed-by: Hans de Goede <[email protected]>
>
> for the series.
Good news so far, thank you!
--
With Best Regards,
Andy Shevchenko
On Fri, 17 Nov 2023, Andy Shevchenko <[email protected]> wrote:
> On Thu, Nov 16, 2023 at 12:15:03PM +0200, Jani Nikula wrote:
>> On Thu, 16 Nov 2023, Hans de Goede <[email protected]> wrote:
>> > Ok, this now has been testen on both a BYT and a CHT device which
>> > actually use GPIO controls in their MIPI sequences so this
>> > series is:
>> >
>> > Tested-by: Hans de Goede <[email protected]>
>> >
>> > And the code of the entire series also looks good to me:
>> >
>> > Reviewed-by: Hans de Goede <[email protected]>
>> >
>> > for the series.
>>
>> Thanks Andy & Hans!
>>
>> I'll merge this once the test results are in. The BAT results have been
>> a bit flaky recently, so needed to do a rerun.
>>
>> That said, I'm not sure if we have any hardware in CI that would
>> actually exercise the modifications, so in that sense I trust Hans'
>> testing much more.
>
> Thank you!
> Should I fix checkpatch warnings CI reported about?
Nah, they're benign.
BR,
Jani.
--
Jani Nikula, Intel