It attaches the colorspace connector property to a DisplayPort connector. Based on colorspace change, modeset will be triggered to switch to a new colorspace.
And in order to distinguish colorspace bwtween DP and HDMI connector, it adds a handling of drm_mode_create_dp_colorspace_property() to intel_attach_colorspace_property().
Based on colorspace property value create a VSC SDP packet with appropriate colorspace. This would help to enable wider color gamut like BT2020 on a sink device.
v9: Addressed review comments from Ville - Add a handling of drm_mode_create_dp_colorspace_property() to intel_attach_colorspace_property(). This hunk moved from the previous commit.
Signed-off-by: Gwan-gyeong Mun gwan-gyeong.mun@intel.com Reviewed-by: Uma Shankar uma.shankar@intel.com --- .../gpu/drm/i915/display/intel_connector.c | 21 ++++++++++++++++--- drivers/gpu/drm/i915/display/intel_dp.c | 2 ++ 2 files changed, 20 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_connector.c b/drivers/gpu/drm/i915/display/intel_connector.c index ba2ef165a01a..1133c4e97bb4 100644 --- a/drivers/gpu/drm/i915/display/intel_connector.c +++ b/drivers/gpu/drm/i915/display/intel_connector.c @@ -277,7 +277,22 @@ intel_attach_aspect_ratio_property(struct drm_connector *connector) void intel_attach_colorspace_property(struct drm_connector *connector) { - if (!drm_mode_create_hdmi_colorspace_property(connector)) - drm_object_attach_property(&connector->base, - connector->colorspace_property, 0); + switch (connector->connector_type) { + case DRM_MODE_CONNECTOR_HDMIA: + case DRM_MODE_CONNECTOR_HDMIB: + if (drm_mode_create_hdmi_colorspace_property(connector)) + return; + break; + case DRM_MODE_CONNECTOR_DisplayPort: + case DRM_MODE_CONNECTOR_eDP: + if (drm_mode_create_dp_colorspace_property(connector)) + return; + break; + default: + DRM_DEBUG_KMS("Colorspace property not supported\n"); + return; + } + + drm_object_attach_property(&connector->base, + connector->colorspace_property, 0); } diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index f13892deafbb..1f7d69e74850 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -6448,6 +6448,8 @@ intel_dp_add_properties(struct intel_dp *intel_dp, struct drm_connector *connect else if (INTEL_GEN(dev_priv) >= 5) drm_connector_attach_max_bpc_property(connector, 6, 12);
+ intel_attach_colorspace_property(connector); + if (intel_dp_is_edp(intel_dp)) { u32 allowed_scalers;