In order to use colorspace property to Display Port connectors, it extends DRM_MODE_CONNECTOR_DisplayPort connector_type on drm_mode_create_colorspace_property function.
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]
Signed-off-by: Gwan-gyeong Mun gwan-gyeong.mun@intel.com Reviewed-by: Uma Shankar uma.shankar@intel.com --- drivers/gpu/drm/drm_connector.c | 49 +++++++++++++++++++++++++++++++++ include/drm/drm_connector.h | 8 ++++++ 2 files changed, 57 insertions(+)
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index 4c766624b20d..5724c892ceba 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -882,6 +882,47 @@ 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" }, + /* Colorimetry based on sRGB (IEC 61966-2-1) */ + { DRM_MODE_COLORIMETRY_CEA_RGB, "CEA_RGB" }, + { 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" }, + { DRM_MODE_COLORIMETRY_RGB_CUSTOM_COLOR_PROFILE, "RGB_Custom_Color_Profile" }, + /* 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" }, + /* + * Colorimetry based on Digital Imaging and Communications in Medicine + * (DICOM) Part 14: Grayscale Standard Display Function + */ + { DRM_MODE_COLORIMETRY_Y_ONLY_DICOM_P14_GRAYSCALE, "Y_ONLY_DICOM_Part_14_Grayscale" }, + { DRM_MODE_COLORIMETRY_RAW_CUSTOM_COLOR_PROFILE, "Raw_Custom_Color_Profile" }, +}; + /** * DOC: standard connector properties * @@ -1710,6 +1751,14 @@ 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_DisplayPort || + connector->connector_type == DRM_MODE_CONNECTOR_eDP) { + 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; diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 681cb590f952..20929ade1e3b 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -281,6 +281,14 @@ enum drm_panel_orientation { /* Additional Colorimetry extension added as part of CTA 861.G */ #define DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65 11 #define DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER 12 +/* Additional Colorimetry Options added for DP 1.4a VSC Colorimetry Format */ +#define DRM_MODE_COLORIMETRY_CEA_RGB 13 +#define DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED 14 +#define DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT 15 +#define DRM_MODE_COLORIMETRY_RGB_CUSTOM_COLOR_PROFILE 16 +#define DRM_MODE_COLORIMETRY_BT601_YCC 17 +#define DRM_MODE_COLORIMETRY_Y_ONLY_DICOM_P14_GRAYSCALE 18 +#define DRM_MODE_COLORIMETRY_RAW_CUSTOM_COLOR_PROFILE 19
/** * enum drm_bus_flags - bus_flags info for &drm_display_info