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authorGwan-gyeong Mun <gwan-gyeong.mun@intel.com>2019-09-19 22:53:07 +0300
committerVille Syrjälä <ville.syrjala@linux.intel.com>2019-09-20 18:46:18 +0300
commit45cf0e91df8c75c3a0c69e54d01cf42e24af365b (patch)
tree97467899901a82dd57c556407f0792f47ebd97d2 /drivers/gpu/drm/drm_connector.c
parent8806cd3aa025ad9351678e7b8377080dec1315a9 (diff)
downloadlinux-45cf0e91df8c75c3a0c69e54d01cf42e24af365b.tar.xz
drm: Add DisplayPort colorspace property creation function
Because between HDMI and DP have different colorspaces, it adds drm_mode_create_dp_colorspace_property() function for creating of DP colorspace property. v3: Addressed review comments from Ville - Add new colorimetry options for DP 1.4a spec. - Separate set of colorimetry enum values for DP. v4: Add additional comments to struct drm_prop_enum_list. Polishing an enum string of struct drm_prop_enum_list v5: Change definitions of DRM_MODE_COLORIMETRYs to follow HDMI prefix and DP abbreviations. Add missed variables on dp_colorspaces. Fix typo. [Uma] v6: Addressed review comments from Ilia and Ville - Split drm_mode_create_colorspace_property() to DP and HDMI connector. v7: Fix typo [Jani Saarinen] Fix white space. v8: Addressed review comments from Ville - Drop colorimetries which have another way to distinguish or which would not be used. v9: Addressed review comments from Ville - Split hunk into renaming and adding of code. Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> Reviewed-by: Uma Shankar <uma.shankar@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190919195311.13972-5-gwan-gyeong.mun@intel.com
Diffstat (limited to 'drivers/gpu/drm/drm_connector.c')
-rw-r--r--drivers/gpu/drm/drm_connector.c64
1 files changed, 63 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 14a94a100cb0..0965632008a9 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -875,6 +875,38 @@ static const struct drm_prop_enum_list hdmi_colorspaces[] = {
{ DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER, "DCI-P3_RGB_Theater" },
};
+/*
+ * As per DP 1.4a spec, 2.2.5.7.5 VSC SDP Payload for Pixel Encoding/Colorimetry
+ * Format Table 2-120
+ */
+static const struct drm_prop_enum_list dp_colorspaces[] = {
+ /* For Default case, driver will set the colorspace */
+ { DRM_MODE_COLORIMETRY_DEFAULT, "Default" },
+ { DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED, "RGB_Wide_Gamut_Fixed_Point" },
+ /* Colorimetry based on scRGB (IEC 61966-2-2) */
+ { DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT, "RGB_Wide_Gamut_Floating_Point" },
+ /* Colorimetry based on IEC 61966-2-5 */
+ { DRM_MODE_COLORIMETRY_OPRGB, "opRGB" },
+ /* Colorimetry based on SMPTE RP 431-2 */
+ { DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65, "DCI-P3_RGB_D65" },
+ /* Colorimetry based on ITU-R BT.2020 */
+ { DRM_MODE_COLORIMETRY_BT2020_RGB, "BT2020_RGB" },
+ { DRM_MODE_COLORIMETRY_BT601_YCC, "BT601_YCC" },
+ { DRM_MODE_COLORIMETRY_BT709_YCC, "BT709_YCC" },
+ /* 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 61966-2-1/Amendment 1 */
+ { DRM_MODE_COLORIMETRY_SYCC_601, "SYCC_601" },
+ /* Colorimetry based on IEC 61966-2-5 [33] */
+ { DRM_MODE_COLORIMETRY_OPYCC_601, "opYCC_601" },
+ /* Colorimetry based on ITU-R BT.2020 */
+ { DRM_MODE_COLORIMETRY_BT2020_CYCC, "BT2020_CYCC" },
+ /* Colorimetry based on ITU-R BT.2020 */
+ { DRM_MODE_COLORIMETRY_BT2020_YCC, "BT2020_YCC" },
+};
+
/**
* DOC: standard connector properties
*
@@ -1687,7 +1719,8 @@ EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property);
* source is trying to drive.
*
* Because between HDMI and DP have different colorspaces,
- * drm_mode_create_hdmi_colorspace_property() is used for HDMI connector.
+ * drm_mode_create_hdmi_colorspace_property() is used for HDMI connector and
+ * drm_mode_create_dp_colorspace_property() is used for DP connector.
*/
/**
@@ -1720,6 +1753,35 @@ int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector)
EXPORT_SYMBOL(drm_mode_create_hdmi_colorspace_property);
/**
+ * drm_mode_create_dp_colorspace_property - create dp colorspace property
+ * @connector: connector to create the Colorspace property on.
+ *
+ * Called by a driver the first time it's needed, must be attached to desired
+ * DP connectors.
+ *
+ * Returns:
+ * Zero on success, negative errono on failure.
+ */
+int drm_mode_create_dp_colorspace_property(struct drm_connector *connector)
+{
+ struct drm_device *dev = connector->dev;
+
+ if (connector->colorspace_property)
+ return 0;
+
+ connector->colorspace_property =
+ drm_property_create_enum(dev, DRM_MODE_PROP_ENUM, "Colorspace",
+ dp_colorspaces,
+ ARRAY_SIZE(dp_colorspaces));
+
+ if (!connector->colorspace_property)
+ return -ENOMEM;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_dp_colorspace_property);
+
+/**
* drm_mode_create_content_type_property - create content type property
* @dev: DRM device
*