We'll add automatic selection of the output BPC in a following patch, but let's add it to the HDMI connector state already.
Signed-off-by: Maxime Ripard <[email protected]> --- drivers/gpu/drm/drm_atomic.c | 4 +++- drivers/gpu/drm/drm_atomic_state_helper.c | 6 +++++- drivers/gpu/drm/drm_connector.c | 13 ++++++++++++- include/drm/drm_connector.h | 13 ++++++++++++- 4 files changed, 32 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index b1b56dcaa76b..8dce0a2f2ac3 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -1143,9 +1143,11 @@ static void drm_atomic_connector_print_state(struct drm_printer *p, drm_printf(p, "\tcolorspace=%s\n", drm_get_colorspace_name(state->colorspace)); if (connector->connector_type == DRM_MODE_CONNECTOR_HDMIA || - connector->connector_type == DRM_MODE_CONNECTOR_HDMIB) + connector->connector_type == DRM_MODE_CONNECTOR_HDMIB) { drm_printf(p, "\tbroadcast_rgb=%s\n", drm_hdmi_connector_get_broadcast_rgb_name(state->hdmi.broadcast_rgb)); + drm_printf(p, "\toutput_bpc=%u\n", state->hdmi.output_bpc); + } if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK) if (state->writeback_job && state->writeback_job->fb) diff --git a/drivers/gpu/drm/drm_atomic_state_helper.c b/drivers/gpu/drm/drm_atomic_state_helper.c index 0f7e5ba555b8..2c9b52ae1b56 100644 --- a/drivers/gpu/drm/drm_atomic_state_helper.c +++ b/drivers/gpu/drm/drm_atomic_state_helper.c @@ -569,6 +569,9 @@ EXPORT_SYMBOL(drm_atomic_helper_connector_tv_reset); void __drm_atomic_helper_connector_hdmi_reset(struct drm_connector *connector, struct drm_connector_state *new_state) { + new_state->max_bpc = 8; + new_state->max_requested_bpc = 8; + new_state->hdmi.output_bpc = 8; new_state->hdmi.broadcast_rgb = DRM_HDMI_BROADCAST_RGB_AUTO; } EXPORT_SYMBOL(__drm_atomic_helper_connector_hdmi_reset); @@ -651,7 +654,8 @@ int drm_atomic_helper_connector_hdmi_check(struct drm_connector *connector, struct drm_connector_state *new_state = drm_atomic_get_new_connector_state(state, connector); - if (old_state->hdmi.broadcast_rgb != new_state->hdmi.broadcast_rgb) { + if (old_state->hdmi.broadcast_rgb != new_state->hdmi.broadcast_rgb || + old_state->hdmi.output_bpc != new_state->hdmi.output_bpc) { struct drm_crtc *crtc = new_state->crtc; struct drm_crtc_state *crtc_state; diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index b45471d540ac..f55f5918411c 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -459,6 +459,7 @@ EXPORT_SYMBOL(drmm_connector_init); * @funcs: callbacks for this connector * @connector_type: user visible type of the connector * @ddc: optional pointer to the associated ddc adapter + * @max_bpc: Maximum bits per char the HDMI connector supports * * Initialises a preallocated HDMI connector. Connectors can be * subclassed as part of driver connector objects. @@ -475,7 +476,8 @@ int drmm_connector_hdmi_init(struct drm_device *dev, struct drm_connector *connector, const struct drm_connector_funcs *funcs, int connector_type, - struct i2c_adapter *ddc) + struct i2c_adapter *ddc, + unsigned int max_bpc) { int ret; @@ -487,6 +489,15 @@ int drmm_connector_hdmi_init(struct drm_device *dev, if (ret) return ret; + if (max_bpc) { + if (!(max_bpc == 8 || max_bpc == 10 || max_bpc == 12)) + return -EINVAL; + + drm_connector_attach_hdr_output_metadata_property(connector); + drm_connector_attach_max_bpc_property(connector, 8, max_bpc); + connector->max_bpc = max_bpc; + } + return 0; } EXPORT_SYMBOL(drmm_connector_hdmi_init); diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index fdcf64ab91a9..d0bcb835c857 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -1056,6 +1056,11 @@ struct drm_connector_state { * Broadcast RGB selection value. */ enum drm_hdmi_broadcast_rgb broadcast_rgb; + + /** + * @output_bpc: Bits per character to output. + */ + unsigned int output_bpc; } hdmi; }; @@ -1700,6 +1705,11 @@ struct drm_connector { */ struct drm_property_blob *path_blob_ptr; + /** + * @max_bpc: Maximum bits per character the connector supports. + */ + unsigned int max_bpc; + /** * @max_bpc_property: Default connector property for the max bpc to be * driven out of the connector. @@ -1939,7 +1949,8 @@ int drmm_connector_hdmi_init(struct drm_device *dev, struct drm_connector *connector, const struct drm_connector_funcs *funcs, int connector_type, - struct i2c_adapter *ddc); + struct i2c_adapter *ddc, + unsigned int max_bpc); void drm_connector_attach_edid_property(struct drm_connector *connector); int drm_connector_register(struct drm_connector *connector); void drm_connector_unregister(struct drm_connector *connector); -- 2.41.0
