Hi Uma,
On Tue, Nov 27, 2018 at 10:10:42PM +0530, Uma Shankar wrote:
> 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.
>
> Signed-off-by: Uma Shankar <uma.shan...@intel.com>
> ---
> drivers/gpu/drm/drm_connector.c | 31 +++++++++++++++++++++++++++++++
> 1 file changed, 31 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
> index 57d36e4..30e2e6f 100644
> --- a/drivers/gpu/drm/drm_connector.c
> +++ b/drivers/gpu/drm/drm_connector.c
> @@ -850,6 +850,29 @@ int drm_display_info_set_bus_formats(struct
> drm_display_info *info,
> { COLORIMETRY_BT2020_CYCC, "BT2020_CYCC" },
> };
>
> +static const struct drm_prop_enum_list dp_colorspace[] = {
> + /* For Default case, driver will set the colorspace */
> + { COLORIMETRY_DEFAULT, "Default" },
> + /* Standard Definition Colorimetry based on CEA 861 */
> + { COLORIMETRY_ITU_601, "ITU_601" },
> + { COLORIMETRY_ITU_709, "ITU_709" },
> + /* Standard Definition Colorimetry based on IEC 61966-2-4 */
> + { COLORIMETRY_XV_YCC_601, "XV_YCC_601" },
> + /* High Definition Colorimetry based on IEC 61966-2-4 */
> + { COLORIMETRY_XV_YCC_709, "XV_YCC_709" },
> + /* Colorimetry based on IEC 61966-2-5 */
> + { COLORIMETRY_OPRGB, "opRGB" },
A macro for the common ones might be good to ensure they always stay
in-sync between HDMI and DP
Thanks,
-Brian
> + /* DP MSA Colorimetry */
> + { DP_COLORIMETRY_Y_CBCR_ITU_601, "YCBCR_ITU_601" },
> + { DP_COLORIMETRY_Y_CBCR_ITU_709, "YCBCR_ITU_709" },
> + { DP_COLORIMETRY_SRGB, "sRGB" },
> + { DP_COLORIMETRY_RGB_WIDE_GAMUT, "RGB Wide Gamut" },
> + { DP_COLORIMETRY_SCRGB, "scRGB" },
> + { DP_COLORIMETRY_DCI_P3, "DCI-P3" },
> + { DP_COLORIMETRY_CUSTOM_COLOR_PROFILE, "Custom Profile" },
> +};
> +
> +
> /**
> * DOC: standard connector properties
> *
> @@ -1454,6 +1477,14 @@ int drm_mode_create_colorspace_property(struct
> drm_connector *connector)
> ARRAY_SIZE(hdmi_colorspace));
> 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_colorspace,
> + ARRAY_SIZE(dp_colorspace));
> + if (!prop)
> + return -ENOMEM;
> }
>
> connector->colorspace_property = prop;
> --
> 1.9.1
>
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