This patchset sits on top Maxime's HDMI connector patchset ([1]).
Currently this is an RFC exploring the interface between HDMI bridges
and HDMI connector code. This has been lightly verified on the Qualcomm
DB820c, which has native HDMI output. If this approach is considered to
be acceptable, I'll finish MSM HDMI bridge conversion (reworking the
Audio Infoframe code). Other bridges can follow the same approach (we
have lt9611 / lt9611uxc / adv7511 on Qualcomm hardware).
[1] https://patchwork.freedesktop.org/series/122421/
Signed-off-by: Dmitry Baryshkov <[email protected]>
---
Changes in v4:
- Reworked drm_bridge_connector functions to remove ternary operators
and to reduce indentation level (Maxime)
- Added hdmi_ prefix to all HDMI-related drm_bridge_funcs calls (Maxime)
- Made vendor and product mandatory to the HDMI bridges (Maxime)
- Documented that max_bpc can be 8, 10 or 12 (Maxime)
- Changed hdmi->pixclock to be set using tmds_char_rate instead of
calculating that manually (Maxime)
- Changed mode_valid to use helper function instead of manually
doing mode->clock * 1000
- Removed hdmi_mode in favour of connector->display_info.is_hdmi
- Link to v3: https://lore.kernel.org/r/[email protected]
Changes in v3:
- Rebased on top of the merged HDMI connector patchset.
- Changed drm_bridge_connector to use drmm_connector_init() (Maxime)
- Added a check that write_infoframe callback is present if
BRIDGE_OP_HDMI is set.
- Moved drm_atomic_helper_connector_hdmi_check() call from
drm_bridge_connector to the HDMI bridge driver to remove dependency
from drm_kms_helpers on the optional HDMI state helpers.
- Converted Audio InfoFrame handling code.
- Added support for HDMI Vendor Specific and SPD InfoFrames.
- Link to v2: https://lore.kernel.org/r/[email protected]
Changes in v2:
- Dropped drm_connector_hdmi_setup(). Instead added
drm_connector_hdmi_init() to be used by drm_bridge_connector.
- Changed the drm_bridge_connector to act as a proxy for the HDMI
connector infrastructure. This removes most of the logic from
the bridge drivers.
- Link to v1: https://lore.kernel.org/r/[email protected]
---
Dmitry Baryshkov (9):
drm/connector: hdmi: accept NULL for Audio Infoframe
drm/bridge-connector: switch to using drmm allocations
drm/bridge-connector: implement glue code for HDMI connector
drm/msm/hdmi: switch to atomic bridge callbacks
drm/msm/hdmi: turn mode_set into atomic_enable
drm/msm/hdmi: make use of the drm_connector_hdmi framework
drm/msm/hdmi: get rid of hdmi_mode
drm/msm/hdmi: update HDMI_GEN_PKT_CTRL_GENERIC0_UPDATE definition
drm/msm/hdmi: also send the SPD and HDMI Vendor Specific InfoFrames
drivers/gpu/drm/display/drm_hdmi_state_helper.c | 14 +-
drivers/gpu/drm/drm_bridge_connector.c | 109 +++++++--
drivers/gpu/drm/drm_debugfs.c | 2 +
drivers/gpu/drm/msm/Kconfig | 2 +
drivers/gpu/drm/msm/hdmi/hdmi.c | 46 +---
drivers/gpu/drm/msm/hdmi/hdmi.h | 18 +-
drivers/gpu/drm/msm/hdmi/hdmi_audio.c | 74 ++----
drivers/gpu/drm/msm/hdmi/hdmi_bridge.c | 310 +++++++++++++++++++-----
drivers/gpu/drm/msm/registers/display/hdmi.xml | 2 +-
include/drm/drm_bridge.h | 83 +++++++
10 files changed, 472 insertions(+), 188 deletions(-)
---
base-commit: 80100af925a09ff99fcd6604a5fd8101dd0d17fd
change-id: 20240307-bridge-hdmi-connector-7e3754e661d0
Best regards,
--
Dmitry Baryshkov <[email protected]>
Turn drm_bridge_connector to using drmm_kzalloc() and
drmm_connector_init() and drop the custom destroy function. The
drm_connector_unregister() and fwnode_handle_put() are already handled
by the drm_connector_cleanup() and so are safe to be dropped.
Acked-by: Maxime Ripard <[email protected]>
Signed-off-by: Dmitry Baryshkov <[email protected]>
---
drivers/gpu/drm/drm_bridge_connector.c | 23 +++++------------------
1 file changed, 5 insertions(+), 18 deletions(-)
diff --git a/drivers/gpu/drm/drm_bridge_connector.c b/drivers/gpu/drm/drm_bridge_connector.c
index 982552c9f92c..e093fc8928dc 100644
--- a/drivers/gpu/drm/drm_bridge_connector.c
+++ b/drivers/gpu/drm/drm_bridge_connector.c
@@ -15,6 +15,7 @@
#include <drm/drm_connector.h>
#include <drm/drm_device.h>
#include <drm/drm_edid.h>
+#include <drm/drm_managed.h>
#include <drm/drm_modeset_helper_vtables.h>
#include <drm/drm_probe_helper.h>
@@ -193,19 +194,6 @@ drm_bridge_connector_detect(struct drm_connector *connector, bool force)
return status;
}
-static void drm_bridge_connector_destroy(struct drm_connector *connector)
-{
- struct drm_bridge_connector *bridge_connector =
- to_drm_bridge_connector(connector);
-
- drm_connector_unregister(connector);
- drm_connector_cleanup(connector);
-
- fwnode_handle_put(connector->fwnode);
-
- kfree(bridge_connector);
-}
-
static void drm_bridge_connector_debugfs_init(struct drm_connector *connector,
struct dentry *root)
{
@@ -224,7 +212,6 @@ static const struct drm_connector_funcs drm_bridge_connector_funcs = {
.reset = drm_atomic_helper_connector_reset,
.detect = drm_bridge_connector_detect,
.fill_modes = drm_helper_probe_single_connector_modes,
- .destroy = drm_bridge_connector_destroy,
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
.debugfs_init = drm_bridge_connector_debugfs_init,
@@ -328,7 +315,7 @@ struct drm_connector *drm_bridge_connector_init(struct drm_device *drm,
int connector_type;
int ret;
- bridge_connector = kzalloc(sizeof(*bridge_connector), GFP_KERNEL);
+ bridge_connector = drmm_kzalloc(drm, sizeof(*bridge_connector), GFP_KERNEL);
if (!bridge_connector)
return ERR_PTR(-ENOMEM);
@@ -383,9 +370,9 @@ struct drm_connector *drm_bridge_connector_init(struct drm_device *drm,
return ERR_PTR(-EINVAL);
}
- ret = drm_connector_init_with_ddc(drm, connector,
- &drm_bridge_connector_funcs,
- connector_type, ddc);
+ ret = drmm_connector_init(drm, connector,
+ &drm_bridge_connector_funcs,
+ connector_type, ddc);
if (ret) {
kfree(bridge_connector);
return ERR_PTR(ret);
--
2.39.2
In order to let bridge chains implement HDMI connector infrastructure,
add necessary glue code to the drm_bridge_connector. In case there is a
bridge that sets DRM_BRIDGE_OP_HDMI, drm_bridge_connector will register
itself as a HDMI connector and provide proxy drm_connector_hdmi_funcs
implementation.
Note, to simplify implementation, there can be only one bridge in a
chain that sets DRM_BRIDGE_OP_HDMI. Setting more than one is considered
an error. This limitation can be lifted later, if the need arises.
Signed-off-by: Dmitry Baryshkov <[email protected]>
---
drivers/gpu/drm/drm_bridge_connector.c | 96 ++++++++++++++++++++++++++++++++--
drivers/gpu/drm/drm_debugfs.c | 2 +
include/drm/drm_bridge.h | 83 +++++++++++++++++++++++++++++
3 files changed, 178 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/drm_bridge_connector.c b/drivers/gpu/drm/drm_bridge_connector.c
index e093fc8928dc..95af857b271d 100644
--- a/drivers/gpu/drm/drm_bridge_connector.c
+++ b/drivers/gpu/drm/drm_bridge_connector.c
@@ -18,6 +18,7 @@
#include <drm/drm_managed.h>
#include <drm/drm_modeset_helper_vtables.h>
#include <drm/drm_probe_helper.h>
+#include <drm/display/drm_hdmi_state_helper.h>
/**
* DOC: overview
@@ -87,6 +88,13 @@ struct drm_bridge_connector {
* connector modes detection, if any (see &DRM_BRIDGE_OP_MODES).
*/
struct drm_bridge *bridge_modes;
+ /**
+ * @bridge_hdmi:
+ *
+ * The bridge in the chain that implements necessary support for the
+ * HDMI connector infrastructure, if any (see &DRM_BRIDGE_OP_HDMI).
+ */
+ struct drm_bridge *bridge_hdmi;
};
#define to_drm_bridge_connector(x) \
@@ -287,6 +295,63 @@ static const struct drm_connector_helper_funcs drm_bridge_connector_helper_funcs
.disable_hpd = drm_bridge_connector_disable_hpd,
};
+static enum drm_mode_status
+drm_bridge_connector_tmds_char_rate_valid(const struct drm_connector *connector,
+ const struct drm_display_mode *mode,
+ unsigned long long tmds_rate)
+{
+ struct drm_bridge_connector *bridge_connector =
+ to_drm_bridge_connector(connector);
+ struct drm_bridge *bridge;
+
+ bridge = bridge_connector->bridge_hdmi;
+ if (!bridge)
+ return MODE_ERROR;
+
+ if (bridge->funcs->hdmi_tmds_char_rate_valid)
+ return bridge->funcs->hdmi_tmds_char_rate_valid(bridge, mode, tmds_rate);
+ else
+ return MODE_OK;
+}
+
+static int drm_bridge_connector_clear_infoframe(struct drm_connector *connector,
+ enum hdmi_infoframe_type type)
+{
+ struct drm_bridge_connector *bridge_connector =
+ to_drm_bridge_connector(connector);
+ struct drm_bridge *bridge;
+
+ bridge = bridge_connector->bridge_hdmi;
+ if (!bridge)
+ return -EINVAL;
+
+ if (bridge->funcs->hdmi_clear_infoframe)
+ return bridge->funcs->hdmi_clear_infoframe(bridge, type);
+ else
+ return 0;
+}
+
+static int drm_bridge_connector_write_infoframe(struct drm_connector *connector,
+ enum hdmi_infoframe_type type,
+ const u8 *buffer, size_t len)
+{
+ struct drm_bridge_connector *bridge_connector =
+ to_drm_bridge_connector(connector);
+ struct drm_bridge *bridge;
+
+ bridge = bridge_connector->bridge_hdmi;
+ if (!bridge)
+ return -EINVAL;
+
+ return bridge->funcs->hdmi_write_infoframe(bridge, type, buffer, len);
+}
+
+static const struct drm_connector_hdmi_funcs drm_bridge_connector_hdmi_funcs = {
+ .tmds_char_rate_valid = drm_bridge_connector_tmds_char_rate_valid,
+ .clear_infoframe = drm_bridge_connector_clear_infoframe,
+ .write_infoframe = drm_bridge_connector_write_infoframe,
+};
+
/* -----------------------------------------------------------------------------
* Bridge Connector Initialisation
*/
@@ -312,6 +377,8 @@ struct drm_connector *drm_bridge_connector_init(struct drm_device *drm,
struct drm_connector *connector;
struct i2c_adapter *ddc = NULL;
struct drm_bridge *bridge, *panel_bridge = NULL;
+ unsigned int supported_formats = BIT(HDMI_COLORSPACE_RGB);
+ unsigned int max_bpc = 8;
int connector_type;
int ret;
@@ -348,6 +415,19 @@ struct drm_connector *drm_bridge_connector_init(struct drm_device *drm,
bridge_connector->bridge_detect = bridge;
if (bridge->ops & DRM_BRIDGE_OP_MODES)
bridge_connector->bridge_modes = bridge;
+ if (bridge->ops & DRM_BRIDGE_OP_HDMI) {
+ if (bridge_connector->bridge_hdmi)
+ return ERR_PTR(-EBUSY);
+ if (!bridge->funcs->hdmi_write_infoframe)
+ return ERR_PTR(-EINVAL);
+
+ bridge_connector->bridge_hdmi = bridge;
+
+ if (bridge->supported_formats)
+ supported_formats = bridge->supported_formats;
+ if (bridge->max_bpc)
+ max_bpc = bridge->max_bpc;
+ }
if (!drm_bridge_get_next_bridge(bridge))
connector_type = bridge->type;
@@ -370,9 +450,19 @@ struct drm_connector *drm_bridge_connector_init(struct drm_device *drm,
return ERR_PTR(-EINVAL);
}
- ret = drmm_connector_init(drm, connector,
- &drm_bridge_connector_funcs,
- connector_type, ddc);
+ if (bridge_connector->bridge_hdmi)
+ ret = drmm_connector_hdmi_init(drm, connector,
+ bridge_connector->bridge_hdmi->vendor,
+ bridge_connector->bridge_hdmi->product,
+ &drm_bridge_connector_funcs,
+ &drm_bridge_connector_hdmi_funcs,
+ connector_type, ddc,
+ supported_formats,
+ max_bpc);
+ else
+ ret = drmm_connector_init(drm, connector,
+ &drm_bridge_connector_funcs,
+ connector_type, ddc);
if (ret) {
kfree(bridge_connector);
return ERR_PTR(ret);
diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c
index dd39a5b7a711..e385d90ef893 100644
--- a/drivers/gpu/drm/drm_debugfs.c
+++ b/drivers/gpu/drm/drm_debugfs.c
@@ -762,6 +762,8 @@ static int bridges_show(struct seq_file *m, void *data)
drm_puts(&p, " hpd");
if (bridge->ops & DRM_BRIDGE_OP_MODES)
drm_puts(&p, " modes");
+ if (bridge->ops & DRM_BRIDGE_OP_HDMI)
+ drm_puts(&p, " hdmi");
drm_puts(&p, "\n");
}
diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h
index 4baca0d9107b..3e86bb07eaa7 100644
--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -630,6 +630,54 @@ struct drm_bridge_funcs {
*/
void (*hpd_disable)(struct drm_bridge *bridge);
+ /**
+ * @hdmi_tmds_char_rate_valid:
+ *
+ * Check whether a particular TMDS character rate is supported by the
+ * driver.
+ *
+ * This callback is optional and should only be implemented by the
+ * bridges that take part in the HDMI connector implementation. Bridges
+ * that implement it shall set set the DRM_BRIDGE_OP_HDMI flag in their
+ * &drm_bridge->ops.
+ *
+ * Returns:
+ *
+ * Either &drm_mode_status.MODE_OK or one of the failure reasons
+ * in &enum drm_mode_status.
+ */
+ enum drm_mode_status
+ (*hdmi_tmds_char_rate_valid)(const struct drm_bridge *bridge,
+ const struct drm_display_mode *mode,
+ unsigned long long tmds_rate);
+
+ /**
+ * @hdmi_clear_infoframe:
+ *
+ * This callback clears the infoframes in the hardware during commit.
+ * It will be called multiple times, once for every disabled infoframe
+ * type.
+ *
+ * This callback is optional and should only be implemented by the
+ * bridges that take part in the HDMI connector implementation. Bridges
+ * that implement it shall set set the DRM_BRIDGE_OP_HDMI flag in their
+ * &drm_bridge->ops.
+ */
+ int (*hdmi_clear_infoframe)(struct drm_bridge *bridge,
+ enum hdmi_infoframe_type type);
+ /**
+ * @hdmi_write_infoframe:
+ *
+ * Program the infoframe into the hardware. It will be called multiple
+ * times, once for every updated infoframe type.
+ *
+ * This callback is optional but it must be implemented by bridges that
+ * set the DRM_BRIDGE_OP_HDMI flag in their &drm_bridge->ops.
+ */
+ int (*hdmi_write_infoframe)(struct drm_bridge *bridge,
+ enum hdmi_infoframe_type type,
+ const u8 *buffer, size_t len);
+
/**
* @debugfs_init:
*
@@ -705,6 +753,16 @@ enum drm_bridge_ops {
* this flag shall implement the &drm_bridge_funcs->get_modes callback.
*/
DRM_BRIDGE_OP_MODES = BIT(3),
+ /**
+ * @DRM_BRIDGE_OP_HDMI: The bridge provides HDMI connector operations,
+ * including infoframes support. Bridges that set this flag must
+ * implement the &drm_bridge_funcs->write_infoframe callback.
+ *
+ * Note: currently there can be at most one bridge in a chain that sets
+ * this bit. This is to simplify corresponding glue code in connector
+ * drivers.
+ */
+ DRM_BRIDGE_OP_HDMI = BIT(4),
};
/**
@@ -773,6 +831,31 @@ struct drm_bridge {
* @hpd_cb.
*/
void *hpd_data;
+
+ /**
+ * @vendor: Vendor of the product to be used for the SPD InfoFrame
+ * generation. This is required if @DRM_BRIDGE_OP_HDMI is set.
+ */
+ const char *vendor;
+
+ /**
+ * @product: Name of the product to be used for the SPD InfoFrame
+ * generation. This is required if @DRM_BRIDGE_OP_HDMI is set.
+ */
+ const char *product;
+
+ /**
+ * @supported_formats: Bitmask of @hdmi_colorspace listing supported
+ * output formats. This is only relevant if @DRM_BRIDGE_OP_HDMI is set.
+ */
+ unsigned int supported_formats;
+
+ /**
+ * @max_bpc: Maximum bits per char the HDMI bridge supports. Allowed
+ * values are 8, 10 and 12. This is only relevant if
+ * @DRM_BRIDGE_OP_HDMI is set.
+ */
+ unsigned int max_bpc;
};
static inline struct drm_bridge *
--
2.39.2
Setup the HDMI connector on the MSM HDMI outputs. Make use of
atomic_check hook and of the provided Infoframe infrastructure.
Signed-off-by: Dmitry Baryshkov <[email protected]>
---
drivers/gpu/drm/msm/Kconfig | 2 +
drivers/gpu/drm/msm/hdmi/hdmi.c | 44 ++-------
drivers/gpu/drm/msm/hdmi/hdmi.h | 16 +---
drivers/gpu/drm/msm/hdmi/hdmi_audio.c | 74 ++++----------
drivers/gpu/drm/msm/hdmi/hdmi_bridge.c | 170 ++++++++++++++++++++++++---------
5 files changed, 159 insertions(+), 147 deletions(-)
diff --git a/drivers/gpu/drm/msm/Kconfig b/drivers/gpu/drm/msm/Kconfig
index 1931ecf73e32..b5c78c1dd744 100644
--- a/drivers/gpu/drm/msm/Kconfig
+++ b/drivers/gpu/drm/msm/Kconfig
@@ -164,6 +164,8 @@ config DRM_MSM_HDMI
bool "Enable HDMI support in MSM DRM driver"
depends on DRM_MSM
default y
+ select DRM_DISPLAY_HDMI_HELPER
+ select DRM_DISPLAY_HDMI_STATE_HELPER
help
Compile in support for the HDMI output MSM DRM driver. It can
be a primary or a secondary display on device. Note that this is used
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c
index 24abcb7254cc..179da72f8f70 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.c
@@ -12,6 +12,7 @@
#include <drm/drm_bridge_connector.h>
#include <drm/drm_of.h>
+#include <drm/display/drm_hdmi_state_helper.h>
#include <sound/hdmi-codec.h>
#include "hdmi.h"
@@ -165,8 +166,6 @@ int msm_hdmi_modeset_init(struct hdmi *hdmi,
hdmi->dev = dev;
hdmi->encoder = encoder;
- hdmi_audio_infoframe_init(&hdmi->audio.infoframe);
-
ret = msm_hdmi_bridge_init(hdmi);
if (ret) {
DRM_DEV_ERROR(dev->dev, "failed to create HDMI bridge: %d\n", ret);
@@ -254,40 +253,12 @@ static int msm_hdmi_audio_hw_params(struct device *dev, void *data,
struct hdmi_codec_params *params)
{
struct hdmi *hdmi = dev_get_drvdata(dev);
- unsigned int chan;
- unsigned int channel_allocation = 0;
unsigned int rate;
- unsigned int level_shift = 0; /* 0dB */
- bool down_mix = false;
+ int ret;
DRM_DEV_DEBUG(dev, "%u Hz, %d bit, %d channels\n", params->sample_rate,
params->sample_width, params->cea.channels);
- switch (params->cea.channels) {
- case 2:
- /* FR and FL speakers */
- channel_allocation = 0;
- chan = MSM_HDMI_AUDIO_CHANNEL_2;
- break;
- case 4:
- /* FC, LFE, FR and FL speakers */
- channel_allocation = 0x3;
- chan = MSM_HDMI_AUDIO_CHANNEL_4;
- break;
- case 6:
- /* RR, RL, FC, LFE, FR and FL speakers */
- channel_allocation = 0x0B;
- chan = MSM_HDMI_AUDIO_CHANNEL_6;
- break;
- case 8:
- /* FRC, FLC, RR, RL, FC, LFE, FR and FL speakers */
- channel_allocation = 0x1F;
- chan = MSM_HDMI_AUDIO_CHANNEL_8;
- break;
- default:
- return -EINVAL;
- }
-
switch (params->sample_rate) {
case 32000:
rate = HDMI_SAMPLE_RATE_32KHZ;
@@ -316,9 +287,12 @@ static int msm_hdmi_audio_hw_params(struct device *dev, void *data,
return -EINVAL;
}
- msm_hdmi_audio_set_sample_rate(hdmi, rate);
- msm_hdmi_audio_info_setup(hdmi, 1, chan, channel_allocation,
- level_shift, down_mix);
+ ret = drm_atomic_helper_connector_hdmi_update_audio_infoframe(hdmi->connector,
+ ¶ms->cea);
+ if (ret)
+ return ret;
+
+ msm_hdmi_audio_info_setup(hdmi, rate, params->cea.channels);
return 0;
}
@@ -327,7 +301,7 @@ static void msm_hdmi_audio_shutdown(struct device *dev, void *data)
{
struct hdmi *hdmi = dev_get_drvdata(dev);
- msm_hdmi_audio_info_setup(hdmi, 0, 0, 0, 0, 0);
+ msm_hdmi_audio_disable(hdmi);
}
static const struct hdmi_codec_ops msm_hdmi_audio_codec_ops = {
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.h b/drivers/gpu/drm/msm/hdmi/hdmi.h
index 4586baf36415..0ac034eaaf0f 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi.h
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.h
@@ -24,8 +24,8 @@ struct hdmi_platform_config;
struct hdmi_audio {
bool enabled;
- struct hdmi_audio_infoframe infoframe;
int rate;
+ int channels;
};
struct hdmi_hdcp_ctrl;
@@ -199,12 +199,6 @@ static inline int msm_hdmi_pll_8996_init(struct platform_device *pdev)
/*
* audio:
*/
-/* Supported HDMI Audio channels and rates */
-#define MSM_HDMI_AUDIO_CHANNEL_2 0
-#define MSM_HDMI_AUDIO_CHANNEL_4 1
-#define MSM_HDMI_AUDIO_CHANNEL_6 2
-#define MSM_HDMI_AUDIO_CHANNEL_8 3
-
#define HDMI_SAMPLE_RATE_32KHZ 0
#define HDMI_SAMPLE_RATE_44_1KHZ 1
#define HDMI_SAMPLE_RATE_48KHZ 2
@@ -213,12 +207,8 @@ static inline int msm_hdmi_pll_8996_init(struct platform_device *pdev)
#define HDMI_SAMPLE_RATE_176_4KHZ 5
#define HDMI_SAMPLE_RATE_192KHZ 6
-int msm_hdmi_audio_update(struct hdmi *hdmi);
-int msm_hdmi_audio_info_setup(struct hdmi *hdmi, bool enabled,
- uint32_t num_of_channels, uint32_t channel_allocation,
- uint32_t level_shift, bool down_mix);
-void msm_hdmi_audio_set_sample_rate(struct hdmi *hdmi, int rate);
-
+int msm_hdmi_audio_info_setup(struct hdmi *hdmi, int rate, int channels);
+int msm_hdmi_audio_disable(struct hdmi *hdmi);
/*
* hdmi bridge:
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_audio.c b/drivers/gpu/drm/msm/hdmi/hdmi_audio.c
index 4c2058c4adc1..924654bfb48c 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi_audio.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi_audio.c
@@ -7,9 +7,6 @@
#include <linux/hdmi.h>
#include "hdmi.h"
-/* maps MSM_HDMI_AUDIO_CHANNEL_n consts used by audio driver to # of channels: */
-static int nchannels[] = { 2, 4, 6, 8 };
-
/* Supported HDMI Audio sample rates */
#define MSM_HDMI_SAMPLE_RATE_32KHZ 0
#define MSM_HDMI_SAMPLE_RATE_44_1KHZ 1
@@ -71,19 +68,20 @@ static const struct hdmi_msm_audio_arcs *get_arcs(unsigned long int pixclock)
return NULL;
}
-int msm_hdmi_audio_update(struct hdmi *hdmi)
+static int msm_hdmi_audio_update(struct hdmi *hdmi)
{
struct hdmi_audio *audio = &hdmi->audio;
- struct hdmi_audio_infoframe *info = &audio->infoframe;
const struct hdmi_msm_audio_arcs *arcs = NULL;
bool enabled = audio->enabled;
uint32_t acr_pkt_ctrl, vbi_pkt_ctrl, aud_pkt_ctrl;
- uint32_t infofrm_ctrl, audio_config;
+ uint32_t audio_config;
+
+ if (!hdmi->connector->display_info.is_hdmi)
+ return -EINVAL;
+
+ DBG("audio: enabled=%d, channels=%d, rate=%d",
+ audio->enabled, audio->channels, audio->rate);
- DBG("audio: enabled=%d, channels=%d, channel_allocation=0x%x, "
- "level_shift_value=%d, downmix_inhibit=%d, rate=%d",
- audio->enabled, info->channels, info->channel_allocation,
- info->level_shift_value, info->downmix_inhibit, audio->rate);
DBG("video: power_on=%d, pixclock=%lu", hdmi->power_on, hdmi->pixclock);
if (enabled && !(hdmi->power_on && hdmi->pixclock)) {
@@ -104,7 +102,6 @@ int msm_hdmi_audio_update(struct hdmi *hdmi)
acr_pkt_ctrl = hdmi_read(hdmi, REG_HDMI_ACR_PKT_CTRL);
vbi_pkt_ctrl = hdmi_read(hdmi, REG_HDMI_VBI_PKT_CTRL);
aud_pkt_ctrl = hdmi_read(hdmi, REG_HDMI_AUDIO_PKT_CTRL1);
- infofrm_ctrl = hdmi_read(hdmi, REG_HDMI_INFOFRAME_CTRL0);
audio_config = hdmi_read(hdmi, REG_HDMI_AUDIO_CFG);
/* Clear N/CTS selection bits */
@@ -113,7 +110,6 @@ int msm_hdmi_audio_update(struct hdmi *hdmi)
if (enabled) {
uint32_t n, cts, multiplier;
enum hdmi_acr_cts select;
- uint8_t buf[14];
n = arcs->lut[audio->rate].n;
cts = arcs->lut[audio->rate].cts;
@@ -155,20 +151,12 @@ int msm_hdmi_audio_update(struct hdmi *hdmi)
HDMI_ACR_1_N(n));
hdmi_write(hdmi, REG_HDMI_AUDIO_PKT_CTRL2,
- COND(info->channels != 2, HDMI_AUDIO_PKT_CTRL2_LAYOUT) |
+ COND(audio->channels != 2, HDMI_AUDIO_PKT_CTRL2_LAYOUT) |
HDMI_AUDIO_PKT_CTRL2_OVERRIDE);
acr_pkt_ctrl |= HDMI_ACR_PKT_CTRL_CONT;
acr_pkt_ctrl |= HDMI_ACR_PKT_CTRL_SEND;
- /* configure infoframe: */
- hdmi_audio_infoframe_pack(info, buf, sizeof(buf));
- hdmi_write(hdmi, REG_HDMI_AUDIO_INFO0,
- (buf[3] << 0) | (buf[4] << 8) |
- (buf[5] << 16) | (buf[6] << 24));
- hdmi_write(hdmi, REG_HDMI_AUDIO_INFO1,
- (buf[7] << 0) | (buf[8] << 8));
-
hdmi_write(hdmi, REG_HDMI_GC, 0);
vbi_pkt_ctrl |= HDMI_VBI_PKT_CTRL_GC_ENABLE;
@@ -176,11 +164,6 @@ int msm_hdmi_audio_update(struct hdmi *hdmi)
aud_pkt_ctrl |= HDMI_AUDIO_PKT_CTRL1_AUDIO_SAMPLE_SEND;
- infofrm_ctrl |= HDMI_INFOFRAME_CTRL0_AUDIO_INFO_SEND;
- infofrm_ctrl |= HDMI_INFOFRAME_CTRL0_AUDIO_INFO_CONT;
- infofrm_ctrl |= HDMI_INFOFRAME_CTRL0_AUDIO_INFO_SOURCE;
- infofrm_ctrl |= HDMI_INFOFRAME_CTRL0_AUDIO_INFO_UPDATE;
-
audio_config &= ~HDMI_AUDIO_CFG_FIFO_WATERMARK__MASK;
audio_config |= HDMI_AUDIO_CFG_FIFO_WATERMARK(4);
audio_config |= HDMI_AUDIO_CFG_ENGINE_ENABLE;
@@ -190,17 +173,12 @@ int msm_hdmi_audio_update(struct hdmi *hdmi)
vbi_pkt_ctrl &= ~HDMI_VBI_PKT_CTRL_GC_ENABLE;
vbi_pkt_ctrl &= ~HDMI_VBI_PKT_CTRL_GC_EVERY_FRAME;
aud_pkt_ctrl &= ~HDMI_AUDIO_PKT_CTRL1_AUDIO_SAMPLE_SEND;
- infofrm_ctrl &= ~HDMI_INFOFRAME_CTRL0_AUDIO_INFO_SEND;
- infofrm_ctrl &= ~HDMI_INFOFRAME_CTRL0_AUDIO_INFO_CONT;
- infofrm_ctrl &= ~HDMI_INFOFRAME_CTRL0_AUDIO_INFO_SOURCE;
- infofrm_ctrl &= ~HDMI_INFOFRAME_CTRL0_AUDIO_INFO_UPDATE;
audio_config &= ~HDMI_AUDIO_CFG_ENGINE_ENABLE;
}
hdmi_write(hdmi, REG_HDMI_ACR_PKT_CTRL, acr_pkt_ctrl);
hdmi_write(hdmi, REG_HDMI_VBI_PKT_CTRL, vbi_pkt_ctrl);
hdmi_write(hdmi, REG_HDMI_AUDIO_PKT_CTRL1, aud_pkt_ctrl);
- hdmi_write(hdmi, REG_HDMI_INFOFRAME_CTRL0, infofrm_ctrl);
hdmi_write(hdmi, REG_HDMI_AUD_INT,
COND(enabled, HDMI_AUD_INT_AUD_FIFO_URUN_INT) |
@@ -214,41 +192,29 @@ int msm_hdmi_audio_update(struct hdmi *hdmi)
return 0;
}
-int msm_hdmi_audio_info_setup(struct hdmi *hdmi, bool enabled,
- uint32_t num_of_channels, uint32_t channel_allocation,
- uint32_t level_shift, bool down_mix)
+int msm_hdmi_audio_info_setup(struct hdmi *hdmi, int rate, int channels)
{
- struct hdmi_audio *audio;
-
if (!hdmi)
return -ENXIO;
- audio = &hdmi->audio;
-
- if (num_of_channels >= ARRAY_SIZE(nchannels))
+ if ((rate < 0) || (rate >= MSM_HDMI_SAMPLE_RATE_MAX))
return -EINVAL;
- audio->enabled = enabled;
- audio->infoframe.channels = nchannels[num_of_channels];
- audio->infoframe.channel_allocation = channel_allocation;
- audio->infoframe.level_shift_value = level_shift;
- audio->infoframe.downmix_inhibit = down_mix;
+ hdmi->audio.rate = rate;
+ hdmi->audio.channels = channels;
+ hdmi->audio.enabled = true;
return msm_hdmi_audio_update(hdmi);
}
-void msm_hdmi_audio_set_sample_rate(struct hdmi *hdmi, int rate)
+int msm_hdmi_audio_disable(struct hdmi *hdmi)
{
- struct hdmi_audio *audio;
-
if (!hdmi)
- return;
-
- audio = &hdmi->audio;
+ return -ENXIO;
- if ((rate < 0) || (rate >= MSM_HDMI_SAMPLE_RATE_MAX))
- return;
+ hdmi->audio.rate = 0;
+ hdmi->audio.channels = 2;
+ hdmi->audio.enabled = false;
- audio->rate = rate;
- msm_hdmi_audio_update(hdmi);
+ return msm_hdmi_audio_update(hdmi);
}
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
index f259d6268c0f..9eecc9960e75 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
@@ -7,6 +7,8 @@
#include <linux/delay.h>
#include <drm/drm_bridge_connector.h>
#include <drm/drm_edid.h>
+#include <drm/display/drm_hdmi_helper.h>
+#include <drm/display/drm_hdmi_state_helper.h>
#include "msm_kms.h"
#include "hdmi.h"
@@ -68,23 +70,17 @@ static void power_off(struct drm_bridge *bridge)
#define AVI_IFRAME_LINE_NUMBER 1
-static void msm_hdmi_config_avi_infoframe(struct hdmi *hdmi)
+static int msm_hdmi_config_avi_infoframe(struct hdmi *hdmi,
+ const u8 *buffer, size_t len)
{
- struct drm_crtc *crtc = hdmi->encoder->crtc;
- const struct drm_display_mode *mode = &crtc->state->adjusted_mode;
- union hdmi_infoframe frame;
- u8 buffer[HDMI_INFOFRAME_SIZE(AVI)];
+ u32 buf[4] = {};
u32 val;
- int len;
+ int i;
- drm_hdmi_avi_infoframe_from_display_mode(&frame.avi,
- hdmi->connector, mode);
-
- len = hdmi_infoframe_pack(&frame, buffer, sizeof(buffer));
- if (len < 0) {
+ if (len != HDMI_INFOFRAME_SIZE(AVI) || len - 3 > sizeof(buf)) {
DRM_DEV_ERROR(&hdmi->pdev->dev,
"failed to configure avi infoframe\n");
- return;
+ return -EINVAL;
}
/*
@@ -93,37 +89,126 @@ static void msm_hdmi_config_avi_infoframe(struct hdmi *hdmi)
* written to the LSB byte of AVI_INFO0 and the version is written to
* the third byte from the LSB of AVI_INFO3
*/
- hdmi_write(hdmi, REG_HDMI_AVI_INFO(0),
+ memcpy(buf, &buffer[3], len - 3);
+
+ buf[3] |= buffer[1] << 24;
+
+ for (i = 0; i < ARRAY_SIZE(buf); i++)
+ hdmi_write(hdmi, REG_HDMI_AVI_INFO(i), buf[i]);
+
+ val = hdmi_read(hdmi, REG_HDMI_INFOFRAME_CTRL1);
+ val |= HDMI_INFOFRAME_CTRL0_AVI_SEND |
+ HDMI_INFOFRAME_CTRL0_AVI_CONT;
+ hdmi_write(hdmi, REG_HDMI_INFOFRAME_CTRL0, val);
+
+ val = hdmi_read(hdmi, REG_HDMI_INFOFRAME_CTRL1);
+ val &= ~HDMI_INFOFRAME_CTRL1_AVI_INFO_LINE__MASK;
+ val |= HDMI_INFOFRAME_CTRL1_AVI_INFO_LINE(AVI_IFRAME_LINE_NUMBER);
+ hdmi_write(hdmi, REG_HDMI_INFOFRAME_CTRL1, val);
+
+ return 0;
+}
+
+static int msm_hdmi_config_audio_infoframe(struct hdmi *hdmi,
+ const u8 *buffer, size_t len)
+{
+ u32 val;
+
+ if (len != HDMI_INFOFRAME_SIZE(AUDIO)) {
+ DRM_DEV_ERROR(&hdmi->pdev->dev,
+ "failed to configure audio infoframe\n");
+ return -EINVAL;
+ }
+
+ hdmi_write(hdmi, REG_HDMI_AUDIO_INFO0,
buffer[3] |
buffer[4] << 8 |
buffer[5] << 16 |
buffer[6] << 24);
- hdmi_write(hdmi, REG_HDMI_AVI_INFO(1),
+ hdmi_write(hdmi, REG_HDMI_AUDIO_INFO1,
buffer[7] |
buffer[8] << 8 |
buffer[9] << 16 |
buffer[10] << 24);
- hdmi_write(hdmi, REG_HDMI_AVI_INFO(2),
- buffer[11] |
- buffer[12] << 8 |
- buffer[13] << 16 |
- buffer[14] << 24);
+ val = hdmi_read(hdmi, REG_HDMI_INFOFRAME_CTRL1);
+ val |= HDMI_INFOFRAME_CTRL0_AUDIO_INFO_SEND |
+ HDMI_INFOFRAME_CTRL0_AUDIO_INFO_CONT |
+ HDMI_INFOFRAME_CTRL0_AUDIO_INFO_SOURCE |
+ HDMI_INFOFRAME_CTRL0_AUDIO_INFO_UPDATE;
+ hdmi_write(hdmi, REG_HDMI_INFOFRAME_CTRL0, val);
- hdmi_write(hdmi, REG_HDMI_AVI_INFO(3),
- buffer[15] |
- buffer[16] << 8 |
- buffer[1] << 24);
+ return 0;
+}
- hdmi_write(hdmi, REG_HDMI_INFOFRAME_CTRL0,
- HDMI_INFOFRAME_CTRL0_AVI_SEND |
- HDMI_INFOFRAME_CTRL0_AVI_CONT);
+static int msm_hdmi_bridge_clear_infoframe(struct drm_bridge *bridge,
+ enum hdmi_infoframe_type type)
+{
+ struct hdmi_bridge *hdmi_bridge = to_hdmi_bridge(bridge);
+ struct hdmi *hdmi = hdmi_bridge->hdmi;
+ u32 val;
- val = hdmi_read(hdmi, REG_HDMI_INFOFRAME_CTRL1);
- val &= ~HDMI_INFOFRAME_CTRL1_AVI_INFO_LINE__MASK;
- val |= HDMI_INFOFRAME_CTRL1_AVI_INFO_LINE(AVI_IFRAME_LINE_NUMBER);
- hdmi_write(hdmi, REG_HDMI_INFOFRAME_CTRL1, val);
+ switch (type) {
+ case HDMI_INFOFRAME_TYPE_AVI:
+ val = hdmi_read(hdmi, REG_HDMI_INFOFRAME_CTRL0);
+ val &= ~(HDMI_INFOFRAME_CTRL0_AVI_SEND |
+ HDMI_INFOFRAME_CTRL0_AVI_CONT);
+ hdmi_write(hdmi, REG_HDMI_INFOFRAME_CTRL0, val);
+
+ val = hdmi_read(hdmi, REG_HDMI_INFOFRAME_CTRL1);
+ val &= ~HDMI_INFOFRAME_CTRL1_AVI_INFO_LINE__MASK;
+ hdmi_write(hdmi, REG_HDMI_INFOFRAME_CTRL1, val);
+
+ break;
+
+ case HDMI_INFOFRAME_TYPE_AUDIO:
+ val = hdmi_read(hdmi, REG_HDMI_INFOFRAME_CTRL0);
+ val &= ~(HDMI_INFOFRAME_CTRL0_AUDIO_INFO_SEND |
+ HDMI_INFOFRAME_CTRL0_AUDIO_INFO_CONT |
+ HDMI_INFOFRAME_CTRL0_AUDIO_INFO_SOURCE |
+ HDMI_INFOFRAME_CTRL0_AUDIO_INFO_UPDATE);
+ hdmi_write(hdmi, REG_HDMI_INFOFRAME_CTRL0, val);
+
+ val = hdmi_read(hdmi, REG_HDMI_INFOFRAME_CTRL1);
+ val &= ~HDMI_INFOFRAME_CTRL1_AUDIO_INFO_LINE__MASK;
+ hdmi_write(hdmi, REG_HDMI_INFOFRAME_CTRL1, val);
+
+ break;
+
+ default:
+ drm_dbg_driver(hdmi_bridge->base.dev, "Unsupported infoframe type %x\n", type);
+ }
+
+ return 0;
+}
+
+static int msm_hdmi_bridge_write_infoframe(struct drm_bridge *bridge,
+ enum hdmi_infoframe_type type,
+ const u8 *buffer, size_t len)
+{
+ struct hdmi_bridge *hdmi_bridge = to_hdmi_bridge(bridge);
+ struct hdmi *hdmi = hdmi_bridge->hdmi;
+
+ msm_hdmi_bridge_clear_infoframe(bridge, type);
+
+ switch (type) {
+ case HDMI_INFOFRAME_TYPE_AVI:
+ return msm_hdmi_config_avi_infoframe(hdmi, buffer, len);
+ case HDMI_INFOFRAME_TYPE_AUDIO:
+ return msm_hdmi_config_audio_infoframe(hdmi, buffer, len);
+ default:
+ drm_dbg_driver(hdmi_bridge->base.dev, "Unsupported infoframe type %x\n", type);
+ return 0;
+ }
+}
+
+static int msm_hdmi_bridge_atomic_check(struct drm_bridge *bridge,
+ struct drm_bridge_state *bridge_state,
+ struct drm_crtc_state *crtc_state,
+ struct drm_connector_state *conn_state)
+{
+ return drm_atomic_helper_connector_hdmi_check(conn_state->connector, conn_state->state);
}
static void msm_hdmi_bridge_atomic_pre_enable(struct drm_bridge *bridge,
@@ -136,28 +221,22 @@ static void msm_hdmi_bridge_atomic_pre_enable(struct drm_bridge *bridge,
struct drm_encoder *encoder = bridge->encoder;
struct drm_connector *connector;
struct drm_connector_state *conn_state;
- struct drm_crtc_state *crtc_state;
- const struct drm_display_mode *mode;
DBG("power up");
connector = drm_atomic_get_new_connector_for_encoder(state, encoder);
conn_state = drm_atomic_get_new_connector_state(state, connector);
- crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);
- mode = &crtc_state->adjusted_mode;
- hdmi->pixclock = mode->clock * 1000;
+ hdmi->pixclock = conn_state->hdmi.tmds_char_rate;
if (!hdmi->power_on) {
msm_hdmi_phy_resource_enable(phy);
msm_hdmi_power_on(bridge);
hdmi->power_on = true;
- if (hdmi->hdmi_mode) {
- msm_hdmi_config_avi_infoframe(hdmi);
- msm_hdmi_audio_update(hdmi);
- }
}
+ drm_atomic_helper_connector_hdmi_update_infoframes(connector, state);
+
msm_hdmi_phy_powerup(phy, hdmi->pixclock);
msm_hdmi_set_mode(hdmi, true);
@@ -184,8 +263,6 @@ static void msm_hdmi_bridge_atomic_post_disable(struct drm_bridge *bridge,
if (hdmi->power_on) {
power_off(bridge);
hdmi->power_on = false;
- if (hdmi->hdmi_mode)
- msm_hdmi_audio_update(hdmi);
msm_hdmi_phy_resource_disable(phy);
}
}
@@ -252,9 +329,6 @@ static void msm_hdmi_bridge_atomic_enable(struct drm_bridge *bridge,
frame_ctrl |= HDMI_FRAME_CTRL_INTERLACED_EN;
DBG("frame_ctrl=%08x", frame_ctrl);
hdmi_write(hdmi, REG_HDMI_FRAME_CTRL, frame_ctrl);
-
- if (hdmi->hdmi_mode)
- msm_hdmi_audio_update(hdmi);
}
static const struct drm_edid *msm_hdmi_bridge_edid_read(struct drm_bridge *bridge,
@@ -297,7 +371,7 @@ static enum drm_mode_status msm_hdmi_bridge_mode_valid(struct drm_bridge *bridge
struct msm_kms *kms = priv->kms;
long actual, requested;
- requested = 1000 * mode->clock;
+ requested = drm_hdmi_compute_mode_clock(mode, 8, HDMI_COLORSPACE_RGB);
/* for mdp5/apq8074, we manage our own pixel clk (as opposed to
* mdp4/dtv stuff where pixel clk is assigned to mdp/encoder
@@ -323,12 +397,15 @@ static const struct drm_bridge_funcs msm_hdmi_bridge_funcs = {
.atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
.atomic_reset = drm_atomic_helper_bridge_reset,
+ .atomic_check = msm_hdmi_bridge_atomic_check,
.atomic_pre_enable = msm_hdmi_bridge_atomic_pre_enable,
.atomic_enable = msm_hdmi_bridge_atomic_enable,
.atomic_post_disable = msm_hdmi_bridge_atomic_post_disable,
.mode_valid = msm_hdmi_bridge_mode_valid,
.edid_read = msm_hdmi_bridge_edid_read,
.detect = msm_hdmi_bridge_detect,
+ .hdmi_clear_infoframe = msm_hdmi_bridge_clear_infoframe,
+ .hdmi_write_infoframe = msm_hdmi_bridge_write_infoframe,
};
static void
@@ -360,8 +437,11 @@ int msm_hdmi_bridge_init(struct hdmi *hdmi)
bridge->funcs = &msm_hdmi_bridge_funcs;
bridge->ddc = hdmi->i2c;
bridge->type = DRM_MODE_CONNECTOR_HDMIA;
+ bridge->vendor = "Qualcomm";
+ bridge->product = "Snapdragon";
bridge->ops = DRM_BRIDGE_OP_HPD |
DRM_BRIDGE_OP_DETECT |
+ DRM_BRIDGE_OP_HDMI |
DRM_BRIDGE_OP_EDID;
ret = devm_drm_bridge_add(hdmi->dev->dev, bridge);
--
2.39.2
Use connector->display_info.is_hdmi instead of manually using
drm_detect_hdmi_monitor().
Signed-off-by: Dmitry Baryshkov <[email protected]>
---
drivers/gpu/drm/msm/hdmi/hdmi.c | 2 +-
drivers/gpu/drm/msm/hdmi/hdmi.h | 2 --
drivers/gpu/drm/msm/hdmi/hdmi_bridge.c | 11 -----------
3 files changed, 1 insertion(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c
index 179da72f8f70..2e2883b9229b 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.c
@@ -25,7 +25,7 @@ void msm_hdmi_set_mode(struct hdmi *hdmi, bool power_on)
spin_lock_irqsave(&hdmi->reg_lock, flags);
if (power_on) {
ctrl |= HDMI_CTRL_ENABLE;
- if (!hdmi->hdmi_mode) {
+ if (!hdmi->connector->display_info.is_hdmi) {
ctrl |= HDMI_CTRL_HDMI;
hdmi_write(hdmi, REG_HDMI_CTRL, ctrl);
ctrl &= ~HDMI_CTRL_HDMI;
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.h b/drivers/gpu/drm/msm/hdmi/hdmi.h
index 0ac034eaaf0f..b7fc1c5f1d1e 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi.h
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.h
@@ -67,8 +67,6 @@ struct hdmi {
/* the encoder we are hooked to (outside of hdmi block) */
struct drm_encoder *encoder;
- bool hdmi_mode; /* are we in hdmi mode? */
-
int irq;
struct workqueue_struct *workq;
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
index 9eecc9960e75..9258d3100042 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
@@ -346,17 +346,6 @@ static const struct drm_edid *msm_hdmi_bridge_edid_read(struct drm_bridge *bridg
hdmi_write(hdmi, REG_HDMI_CTRL, hdmi_ctrl);
- if (drm_edid) {
- /*
- * FIXME: This should use connector->display_info.is_hdmi from a
- * path that has read the EDID and called
- * drm_edid_connector_update().
- */
- const struct edid *edid = drm_edid_raw(drm_edid);
-
- hdmi->hdmi_mode = drm_detect_hdmi_monitor(edid);
- }
-
return drm_edid;
}
--
2.39.2
The GENERIC0_UPDATE field is a single bit. Redefine it as boolean to
simplify its usage in the driver.
Signed-off-by: Dmitry Baryshkov <[email protected]>
---
drivers/gpu/drm/msm/registers/display/hdmi.xml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/registers/display/hdmi.xml b/drivers/gpu/drm/msm/registers/display/hdmi.xml
index 6c81581016c7..fc711a842363 100644
--- a/drivers/gpu/drm/msm/registers/display/hdmi.xml
+++ b/drivers/gpu/drm/msm/registers/display/hdmi.xml
@@ -131,7 +131,7 @@ xsi:schemaLocation="https://gitlab.freedesktop.org/freedreno/ rules-fd.xsd">
-->
<bitfield name="GENERIC0_SEND" pos="0" type="boolean"/>
<bitfield name="GENERIC0_CONT" pos="1" type="boolean"/>
- <bitfield name="GENERIC0_UPDATE" low="2" high="3" type="uint"/> <!-- ??? -->
+ <bitfield name="GENERIC0_UPDATE" pos="2" type="boolean"/>
<bitfield name="GENERIC1_SEND" pos="4" type="boolean"/>
<bitfield name="GENERIC1_CONT" pos="5" type="boolean"/>
<bitfield name="GENERIC0_LINE" low="16" high="21" type="uint"/>
--
2.39.2
Extend the driver to send SPD and HDMI Vendor Specific InfoFrames.
While the HDMI block has special block to send HVS InfoFrame, use
GENERIC0 block instead. VENSPEC_INFO registers pack frame data in a way
that requires manual repacking in the driver, while GENERIC0 doesn't
have such format requirements. The msm-4.4 kernel uses GENERIC0 to send
HDR InfoFrame which we do not at this point anyway.
Signed-off-by: Dmitry Baryshkov <[email protected]>
---
drivers/gpu/drm/msm/hdmi/hdmi_bridge.c | 93 ++++++++++++++++++++++++++++++++++
1 file changed, 93 insertions(+)
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
index 9258d3100042..ad6258a2017a 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
@@ -69,6 +69,8 @@ static void power_off(struct drm_bridge *bridge)
}
#define AVI_IFRAME_LINE_NUMBER 1
+#define SPD_IFRAME_LINE_NUMBER 1
+#define VENSPEC_IFRAME_LINE_NUMBER 3
static int msm_hdmi_config_avi_infoframe(struct hdmi *hdmi,
const u8 *buffer, size_t len)
@@ -142,6 +144,74 @@ static int msm_hdmi_config_audio_infoframe(struct hdmi *hdmi,
return 0;
}
+static int msm_hdmi_config_spd_infoframe(struct hdmi *hdmi,
+ const u8 *buffer, size_t len)
+{
+ u32 buf[7] = {};
+ u32 val;
+ int i;
+
+ if (len != HDMI_INFOFRAME_SIZE(SPD) || len - 3 > sizeof(buf)) {
+ DRM_DEV_ERROR(&hdmi->pdev->dev,
+ "failed to configure SPD infoframe\n");
+ return -EINVAL;
+ }
+
+ /* checksum gets written together with the body of the frame */
+ hdmi_write(hdmi, REG_HDMI_GENERIC1_HDR,
+ buffer[0] |
+ buffer[1] << 8 |
+ buffer[2] << 16);
+
+ memcpy(buf, &buffer[3], len - 3);
+
+ for (i = 0; i < ARRAY_SIZE(buf); i++)
+ hdmi_write(hdmi, REG_HDMI_GENERIC1(i), buf[i]);
+
+ val = hdmi_read(hdmi, REG_HDMI_GEN_PKT_CTRL);
+ val |= HDMI_GEN_PKT_CTRL_GENERIC1_SEND |
+ HDMI_GEN_PKT_CTRL_GENERIC1_CONT |
+ HDMI_GEN_PKT_CTRL_GENERIC1_LINE(SPD_IFRAME_LINE_NUMBER);
+ hdmi_write(hdmi, REG_HDMI_GEN_PKT_CTRL, val);
+
+ return 0;
+}
+
+static int msm_hdmi_config_hdmi_infoframe(struct hdmi *hdmi,
+ const u8 *buffer, size_t len)
+{
+ u32 buf[7] = {};
+ u32 val;
+ int i;
+
+ if (len < HDMI_INFOFRAME_HEADER_SIZE + HDMI_VENDOR_INFOFRAME_SIZE ||
+ len - 3 > sizeof(buf)) {
+ DRM_DEV_ERROR(&hdmi->pdev->dev,
+ "failed to configure HDMI infoframe\n");
+ return -EINVAL;
+ }
+
+ /* checksum gets written together with the body of the frame */
+ hdmi_write(hdmi, REG_HDMI_GENERIC0_HDR,
+ buffer[0] |
+ buffer[1] << 8 |
+ buffer[2] << 16);
+
+ memcpy(buf, &buffer[3], len - 3);
+
+ for (i = 0; i < ARRAY_SIZE(buf); i++)
+ hdmi_write(hdmi, REG_HDMI_GENERIC0(i), buf[i]);
+
+ val = hdmi_read(hdmi, REG_HDMI_GEN_PKT_CTRL);
+ val |= HDMI_GEN_PKT_CTRL_GENERIC0_SEND |
+ HDMI_GEN_PKT_CTRL_GENERIC0_CONT |
+ HDMI_GEN_PKT_CTRL_GENERIC0_UPDATE |
+ HDMI_GEN_PKT_CTRL_GENERIC0_LINE(VENSPEC_IFRAME_LINE_NUMBER);
+ hdmi_write(hdmi, REG_HDMI_GEN_PKT_CTRL, val);
+
+ return 0;
+}
+
static int msm_hdmi_bridge_clear_infoframe(struct drm_bridge *bridge,
enum hdmi_infoframe_type type)
{
@@ -176,6 +246,25 @@ static int msm_hdmi_bridge_clear_infoframe(struct drm_bridge *bridge,
break;
+ case HDMI_INFOFRAME_TYPE_SPD:
+ val = hdmi_read(hdmi, REG_HDMI_GEN_PKT_CTRL);
+ val &= ~(HDMI_GEN_PKT_CTRL_GENERIC1_SEND |
+ HDMI_GEN_PKT_CTRL_GENERIC1_CONT |
+ HDMI_GEN_PKT_CTRL_GENERIC1_LINE__MASK);
+ hdmi_write(hdmi, REG_HDMI_GEN_PKT_CTRL, val);
+
+ break;
+
+ case HDMI_INFOFRAME_TYPE_VENDOR:
+ val = hdmi_read(hdmi, REG_HDMI_GEN_PKT_CTRL);
+ val &= ~(HDMI_GEN_PKT_CTRL_GENERIC0_SEND |
+ HDMI_GEN_PKT_CTRL_GENERIC0_CONT |
+ HDMI_GEN_PKT_CTRL_GENERIC0_UPDATE |
+ HDMI_GEN_PKT_CTRL_GENERIC0_LINE__MASK);
+ hdmi_write(hdmi, REG_HDMI_GEN_PKT_CTRL, val);
+
+ break;
+
default:
drm_dbg_driver(hdmi_bridge->base.dev, "Unsupported infoframe type %x\n", type);
}
@@ -197,6 +286,10 @@ static int msm_hdmi_bridge_write_infoframe(struct drm_bridge *bridge,
return msm_hdmi_config_avi_infoframe(hdmi, buffer, len);
case HDMI_INFOFRAME_TYPE_AUDIO:
return msm_hdmi_config_audio_infoframe(hdmi, buffer, len);
+ case HDMI_INFOFRAME_TYPE_SPD:
+ return msm_hdmi_config_spd_infoframe(hdmi, buffer, len);
+ case HDMI_INFOFRAME_TYPE_VENDOR:
+ return msm_hdmi_config_hdmi_infoframe(hdmi, buffer, len);
default:
drm_dbg_driver(hdmi_bridge->base.dev, "Unsupported infoframe type %x\n", type);
return 0;
--
2.39.2
Change MSM HDMI bridge to use atomic_* callbacks in preparation to
enablign the HDMI connector support.
Acked-by: Maxime Ripard <[email protected]>
Signed-off-by: Dmitry Baryshkov <[email protected]>
---
drivers/gpu/drm/msm/hdmi/hdmi_bridge.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
index 4a5b5112227f..d839c71091dc 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
@@ -126,7 +126,8 @@ static void msm_hdmi_config_avi_infoframe(struct hdmi *hdmi)
hdmi_write(hdmi, REG_HDMI_INFOFRAME_CTRL1, val);
}
-static void msm_hdmi_bridge_pre_enable(struct drm_bridge *bridge)
+static void msm_hdmi_bridge_atomic_pre_enable(struct drm_bridge *bridge,
+ struct drm_bridge_state *old_bridge_state)
{
struct hdmi_bridge *hdmi_bridge = to_hdmi_bridge(bridge);
struct hdmi *hdmi = hdmi_bridge->hdmi;
@@ -152,7 +153,8 @@ static void msm_hdmi_bridge_pre_enable(struct drm_bridge *bridge)
msm_hdmi_hdcp_on(hdmi->hdcp_ctrl);
}
-static void msm_hdmi_bridge_post_disable(struct drm_bridge *bridge)
+static void msm_hdmi_bridge_atomic_post_disable(struct drm_bridge *bridge,
+ struct drm_bridge_state *old_bridge_state)
{
struct hdmi_bridge *hdmi_bridge = to_hdmi_bridge(bridge);
struct hdmi *hdmi = hdmi_bridge->hdmi;
@@ -299,8 +301,11 @@ static enum drm_mode_status msm_hdmi_bridge_mode_valid(struct drm_bridge *bridge
}
static const struct drm_bridge_funcs msm_hdmi_bridge_funcs = {
- .pre_enable = msm_hdmi_bridge_pre_enable,
- .post_disable = msm_hdmi_bridge_post_disable,
+ .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
+ .atomic_reset = drm_atomic_helper_bridge_reset,
+ .atomic_pre_enable = msm_hdmi_bridge_atomic_pre_enable,
+ .atomic_post_disable = msm_hdmi_bridge_atomic_post_disable,
.mode_set = msm_hdmi_bridge_mode_set,
.mode_valid = msm_hdmi_bridge_mode_valid,
.edid_read = msm_hdmi_bridge_edid_read,
--
2.39.2
The mode_set callback is deprecated, it doesn't get the
drm_bridge_state, just mode-related argumetns. Turn it into the
atomic_enable callback as suggested by the documentation.
Signed-off-by: Dmitry Baryshkov <[email protected]>
---
drivers/gpu/drm/msm/hdmi/hdmi_bridge.c | 33 ++++++++++++++++++++++++++-------
1 file changed, 26 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
index d839c71091dc..f259d6268c0f 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
@@ -129,12 +129,25 @@ static void msm_hdmi_config_avi_infoframe(struct hdmi *hdmi)
static void msm_hdmi_bridge_atomic_pre_enable(struct drm_bridge *bridge,
struct drm_bridge_state *old_bridge_state)
{
+ struct drm_atomic_state *state = old_bridge_state->base.state;
struct hdmi_bridge *hdmi_bridge = to_hdmi_bridge(bridge);
struct hdmi *hdmi = hdmi_bridge->hdmi;
struct hdmi_phy *phy = hdmi->phy;
+ struct drm_encoder *encoder = bridge->encoder;
+ struct drm_connector *connector;
+ struct drm_connector_state *conn_state;
+ struct drm_crtc_state *crtc_state;
+ const struct drm_display_mode *mode;
DBG("power up");
+ connector = drm_atomic_get_new_connector_for_encoder(state, encoder);
+ conn_state = drm_atomic_get_new_connector_state(state, connector);
+ crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);
+ mode = &crtc_state->adjusted_mode;
+
+ hdmi->pixclock = mode->clock * 1000;
+
if (!hdmi->power_on) {
msm_hdmi_phy_resource_enable(phy);
msm_hdmi_power_on(bridge);
@@ -177,18 +190,24 @@ static void msm_hdmi_bridge_atomic_post_disable(struct drm_bridge *bridge,
}
}
-static void msm_hdmi_bridge_mode_set(struct drm_bridge *bridge,
- const struct drm_display_mode *mode,
- const struct drm_display_mode *adjusted_mode)
+static void msm_hdmi_bridge_atomic_enable(struct drm_bridge *bridge,
+ struct drm_bridge_state *old_bridge_state)
{
+ struct drm_atomic_state *state = old_bridge_state->base.state;
struct hdmi_bridge *hdmi_bridge = to_hdmi_bridge(bridge);
struct hdmi *hdmi = hdmi_bridge->hdmi;
+ struct drm_encoder *encoder = bridge->encoder;
+ struct drm_connector *connector;
+ struct drm_connector_state *conn_state;
+ struct drm_crtc_state *crtc_state;
+ const struct drm_display_mode *mode;
int hstart, hend, vstart, vend;
uint32_t frame_ctrl;
- mode = adjusted_mode;
-
- hdmi->pixclock = mode->clock * 1000;
+ connector = drm_atomic_get_new_connector_for_encoder(state, encoder);
+ conn_state = drm_atomic_get_new_connector_state(state, connector);
+ crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);
+ mode = &crtc_state->adjusted_mode;
hstart = mode->htotal - mode->hsync_start;
hend = mode->htotal - mode->hsync_start + mode->hdisplay;
@@ -305,8 +324,8 @@ static const struct drm_bridge_funcs msm_hdmi_bridge_funcs = {
.atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
.atomic_reset = drm_atomic_helper_bridge_reset,
.atomic_pre_enable = msm_hdmi_bridge_atomic_pre_enable,
+ .atomic_enable = msm_hdmi_bridge_atomic_enable,
.atomic_post_disable = msm_hdmi_bridge_atomic_post_disable,
- .mode_set = msm_hdmi_bridge_mode_set,
.mode_valid = msm_hdmi_bridge_mode_valid,
.edid_read = msm_hdmi_bridge_edid_read,
.detect = msm_hdmi_bridge_detect,
--
2.39.2
On Fri, 31 May 2024 23:07:28 +0300, Dmitry Baryshkov wrote:
> The mode_set callback is deprecated, it doesn't get the
> drm_bridge_state, just mode-related argumetns. Turn it into the
> atomic_enable callback as suggested by the documentation.
>
> Signed-off-by: Dmitry Baryshkov <[email protected]>
>
> [ ... ]
Acked-by: Maxime Ripard <[email protected]>
Thanks!
Maxime
On Fri, 31 May 2024 23:07:30 +0300, Dmitry Baryshkov wrote:
> Use connector->display_info.is_hdmi instead of manually using
> drm_detect_hdmi_monitor().
>
> Signed-off-by: Dmitry Baryshkov <[email protected]>
Acked-by: Maxime Ripard <[email protected]>
Thanks!
Maxime
Hi,
On Fri, May 31, 2024 at 11:07:26PM GMT, Dmitry Baryshkov wrote:
> +static int drm_bridge_connector_clear_infoframe(struct drm_connector *connector,
> + enum hdmi_infoframe_type type)
> +{
> + struct drm_bridge_connector *bridge_connector =
> + to_drm_bridge_connector(connector);
> + struct drm_bridge *bridge;
> +
> + bridge = bridge_connector->bridge_hdmi;
> + if (!bridge)
> + return -EINVAL;
> +
> + if (bridge->funcs->hdmi_clear_infoframe)
> + return bridge->funcs->hdmi_clear_infoframe(bridge, type);
> + else
> + return 0;
> +}
> +
> +static int drm_bridge_connector_write_infoframe(struct drm_connector *connector,
> + enum hdmi_infoframe_type type,
> + const u8 *buffer, size_t len)
> +{
> + struct drm_bridge_connector *bridge_connector =
> + to_drm_bridge_connector(connector);
> + struct drm_bridge *bridge;
> +
> + bridge = bridge_connector->bridge_hdmi;
> + if (!bridge)
> + return -EINVAL;
> +
> + return bridge->funcs->hdmi_write_infoframe(bridge, type, buffer, len);
> +}
Sorry, I didn't notice it before, but I think it would be good to try to
make clear_infoframe mandatory just like write_infoframe. It wasn't
possible for the main helpers because we didn't have enough info for
some drivers, but I think we should try to make it mandatory, and be
prepared to relax it if needs be.
With that fixed:
Acked-by: Maxime Ripard <[email protected]>
Maxime
On Fri, 31 May 2024 23:07:29 +0300, Dmitry Baryshkov wrote:
> Setup the HDMI connector on the MSM HDMI outputs. Make use of
> atomic_check hook and of the provided Infoframe infrastructure.
>
> Signed-off-by: Dmitry Baryshkov <[email protected]>
Acked-by: Maxime Ripard <[email protected]>
Thanks!
Maxime