This patch attaches the colorspace connector property to the hdmi connector. Based on colorspace change, modeset will be triggered to switch to new colorspace.
Based on colorspace property value create an infoframe with appropriate colorspace. This can be used to send an infoframe packet with proper colorspace value set which will help to enable wider color gamut like BT2020 on sink.
This patch attaches and enables HDMI colorspace, DP will be taken care separately.
v2: Merged the changes of creating infoframe as well to this patch as per Maarten's suggestion.
v3: Addressed review comments from Shashank. Separated HDMI and DP colorspaces as suggested by Ville and Maarten.
v4: Addressed Chris and Ville's review comments, and created a common colorspace property for DP and HDMI, filtered the list based on the colorspaces supported by the respective protocol standard. Handle the default case properly.
v5: Merged the DP handling along with platform colorspace handling as per Shashank's comments.
v6: Reverted to old design of exposing all colorspaces to userspace as per Ville's review comment
v7: Fixed a checkpatch complaint, Addressed Maarten' review comment, updated the RB from Maarten and Jani's ack.
Signed-off-by: Uma Shankar uma.shankar@intel.com Acked-by: Jani Nikula jani.nikula@intel.com Reviewed-by: Maarten Lankhorst maarten.lankhorst@linux.intel.com --- drivers/gpu/drm/i915/intel_atomic.c | 1 + drivers/gpu/drm/i915/intel_connector.c | 8 ++++++++ drivers/gpu/drm/i915/intel_drv.h | 1 + drivers/gpu/drm/i915/intel_hdmi.c | 25 +++++++++++++++++++++++++ 4 files changed, 35 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_atomic.c b/drivers/gpu/drm/i915/intel_atomic.c index 16263ad..a4bb906 100644 --- a/drivers/gpu/drm/i915/intel_atomic.c +++ b/drivers/gpu/drm/i915/intel_atomic.c @@ -124,6 +124,7 @@ int intel_digital_connector_atomic_check(struct drm_connector *conn, */ if (new_conn_state->force_audio != old_conn_state->force_audio || new_conn_state->broadcast_rgb != old_conn_state->broadcast_rgb || + new_conn_state->base.colorspace != old_conn_state->base.colorspace || new_conn_state->base.picture_aspect_ratio != old_conn_state->base.picture_aspect_ratio || new_conn_state->base.content_type != old_conn_state->base.content_type || new_conn_state->base.scaling_mode != old_conn_state->base.scaling_mode) diff --git a/drivers/gpu/drm/i915/intel_connector.c b/drivers/gpu/drm/i915/intel_connector.c index ee16758..8352d0b 100644 --- a/drivers/gpu/drm/i915/intel_connector.c +++ b/drivers/gpu/drm/i915/intel_connector.c @@ -265,3 +265,11 @@ int intel_ddc_get_modes(struct drm_connector *connector, connector->dev->mode_config.aspect_ratio_property, DRM_MODE_PICTURE_ASPECT_NONE); } + +void +intel_attach_colorspace_property(struct drm_connector *connector) +{ + if (!drm_mode_create_colorspace_property(connector)) + drm_object_attach_property(&connector->base, + connector->colorspace_property, 0); +} diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 85b913e..5178a9a 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -1783,6 +1783,7 @@ int intel_connector_update_modes(struct drm_connector *connector, void intel_attach_force_audio_property(struct drm_connector *connector); void intel_attach_broadcast_rgb_property(struct drm_connector *connector); void intel_attach_aspect_ratio_property(struct drm_connector *connector); +void intel_attach_colorspace_property(struct drm_connector *connector);
/* intel_csr.c */ void intel_csr_ucode_init(struct drm_i915_private *); diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index 97a98e1..5c5009d 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -498,6 +498,24 @@ static void intel_hdmi_set_avi_infoframe(struct intel_encoder *encoder, else frame.avi.colorspace = HDMI_COLORSPACE_RGB;
+ if (conn_state->colorspace == DRM_MODE_COLORIMETRY_DEFAULT) { + /* Set ITU 709 as default for HDMI */ + frame.avi.colorimetry = DRM_MODE_COLORIMETRY_ITU_709; + } else if (conn_state->colorspace < DRM_MODE_COLORIMETRY_XV_YCC_601) { + frame.avi.colorimetry = conn_state->colorspace; + } else { + frame.avi.colorimetry = HDMI_COLORIMETRY_EXTENDED; + /* + * Starting from extended list where COLORIMETRY_XV_YCC_601 + * is the first extended mode and its value is 0 as per HDMI + * specification. + * TODO: This needs to be extended for LSPCON implementation + * as well. Will be implemented separately. + */ + frame.avi.extended_colorimetry = conn_state->colorspace - + DRM_MODE_COLORIMETRY_XV_YCC_601; + } + drm_hdmi_avi_infoframe_quant_range(&frame.avi, conn_state->connector, adjusted_mode, @@ -2143,10 +2161,17 @@ static void intel_hdmi_destroy(struct drm_connector *connector) intel_hdmi_add_properties(struct intel_hdmi *intel_hdmi, struct drm_connector *connector) { struct drm_i915_private *dev_priv = to_i915(connector->dev); + struct intel_digital_port *intel_dig_port = + hdmi_to_dig_port(intel_hdmi);
intel_attach_force_audio_property(connector); intel_attach_broadcast_rgb_property(connector); intel_attach_aspect_ratio_property(connector); + + /* Attach Colorspace property for Non LSPCON based device */ + if (!intel_dig_port->lspcon.active) + intel_attach_colorspace_property(connector); + drm_connector_attach_content_type_property(connector); connector->state->picture_aspect_ratio = HDMI_PICTURE_ASPECT_NONE;