[v12 2/4] drm: Add DP colorspace property

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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

_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/dri-devel




[Index of Archives]     [Linux DRI Users]     [Linux Intel Graphics]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux