This patch adds a DP colorspace property, enabling
userspace to switch to various supported colorspaces.
This will help enable BT2020 along with other colorspaces.
v2: Addressed Maarten and Ville's review comments. Enhanced
the colorspace enum to incorporate both HDMI and DP supported
colorspaces. Also, added a default option for colorspace.
v3: Split the changes to have separate colorspace property for
DP and HDMI.
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.
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 sparse warnings, updated the RB from Maarten and Jani's ack.
v8: Addressed Ville's review comments and updated the colorspace
macro definitions.
Signed-off-by: Uma Shankar <uma.shankar@xxxxxxxxx>
Acked-by: Jani Nikula <jani.nikula@xxxxxxxxx>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/drm_connector.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 5c6f524..4f73591 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -853,6 +853,24 @@ int drm_display_info_set_bus_formats(struct drm_display_info *info,
{ DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER, "DCI-P3_RGB_Theater" },
};
+static const struct drm_prop_enum_list dp_colorspaces[] = {
+ /* For Default case, driver will set the colorspace */
+ { DRM_MODE_COLORIMETRY_DEFAULT, "Default" },
+ /* Standard Definition Colorimetry based on IEC 61966-2-4 */
+ { DRM_MODE_COLORIMETRY_XVYCC_601, "XVYCC_601" },
+ /* High Definition Colorimetry based on IEC 61966-2-4 */
+ { DRM_MODE_COLORIMETRY_XVYCC_709, "XVYCC_709" },
+ /* Colorimetry based on IEC 61966-2-5 */
+ { DRM_MODE_COLORIMETRY_OPRGB, "opRGB" },
+ { DRM_MODE_COLORIMETRY_DCI_P3, "DCI-P3" },
+ /* DP MSA Colorimetry */
+ { DRM_MODE_DP_COLORIMETRY_YCBCR_ITU_601, "YCBCR_ITU_601" },
+ { DRM_MODE_DP_COLORIMETRY_YCBCR_ITU_709, "YCBCR_ITU_709" },
+ { DRM_MODE_DP_COLORIMETRY_SRGB, "sRGB" },
+ { DRM_MODE_DP_COLORIMETRY_RGB_WIDE_GAMUT, "RGB Wide Gamut" },
+ { DRM_MODE_DP_COLORIMETRY_SCRGB, "scRGB" },
+};
+
/**
* DOC: standard connector properties
*
@@ -1614,6 +1632,14 @@ int drm_mode_create_colorspace_property(struct drm_connector *connector)
ARRAY_SIZE(hdmi_colorspaces));
if (!prop)
return -ENOMEM;
+ } else if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
+ connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
+ prop = drm_property_create_enum(dev, DRM_MODE_PROP_ENUM,
+ "Colorspace", dp_colorspaces,
+ ARRAY_SIZE(dp_colorspaces));
+
+ if (!prop)
+ return -ENOMEM;
} else {
DRM_DEBUG_KMS("Colorspace property not supported\n");
return 0;
--
1.9.1
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