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drm: Add DisplayPort colorspace property creation function

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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
This commit is contained in:
Gwan-gyeong Mun 2019-09-19 22:53:07 +03:00 committed by Ville Syrjälä
parent 8806cd3aa0
commit 45cf0e91df
2 changed files with 68 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

64
drivers/gpu/drm/drm_connector.c
View File

@ -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.
*/
/**
@ -1719,6 +1752,35 @@ 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

5
include/drm/drm_connector.h
View File

@ -281,6 +281,10 @@ 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_RGB_WIDE_FIXED 13
#define DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT 14
#define DRM_MODE_COLORIMETRY_BT601_YCC 15
/**
* enum drm_bus_flags - bus_flags info for &drm_display_info
@ -1524,6 +1528,7 @@ int drm_connector_attach_vrr_capable_property(
struct drm_connector *connector);
int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector);
int drm_mode_create_dp_colorspace_property(struct drm_connector *connector);
int drm_mode_create_content_type_property(struct drm_device *dev);
void drm_hdmi_avi_infoframe_content_type(struct hdmi_avi_infoframe *frame,
const struct drm_connector_state *conn_state);