On Wed, Feb 13, 2019 at 12:35:09PM +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.
>
> 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 07d65a1..5473bea 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_RGB_D65, "DCI-P3_RGB_D65" },
> + /* DP MSA Colorimetry */
> + { DRM_MODE_DP_COLORIMETRY_BT601_YCC, "BT601_YCC" },
> + { DRM_MODE_DP_COLORIMETRY_BT709_YCC, "BT709_YCC" },
> + { DRM_MODE_DP_COLORIMETRY_SRGB, "sRGB" },
> + { DRM_MODE_DP_COLORIMETRY_RGB_WIDE_GAMUT, "RGB Wide Gamut" },
> + { DRM_MODE_DP_COLORIMETRY_SCRGB, "scRGB" },
> +};
I think we should postpone this patch (and the DP related bits in the
previous patch) until we have the implementation done. Ie. let's just
get HDMI working initially.
> +
> /**
> * 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
>
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--
Ville Syrjälä
Intel
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