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....@intel.com>
Reviewed-by: Uma Shankar <uma.shan...@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;
--
2.23.0
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