[RFC 1/3] drm: Add colorspace property

[Adam Jackson]

On Tue, 2018-07-24 at 21:15 +0530, Uma Shankar wrote:

> --- a/include/uapi/drm/drm_mode.h
> +++ b/include/uapi/drm/drm_mode.h
> @@ -209,6 +209,17 @@
>  #define DRM_MODE_CONTENT_PROTECTION_DESIRED     1
>  #define DRM_MODE_CONTENT_PROTECTION_ENABLED     2
>  
> +enum extended_colorimetry {
> +	EXTENDED_COLORIMETRY_XV_YCC_601 = 0,
> +	EXTENDED_COLORIMETRY_XV_YCC_709,
> +	EXTENDED_COLORIMETRY_S_YCC_601,
> +	EXTENDED_COLORIMETRY_ADOBE_YCC_601,
> +	EXTENDED_COLORIMETRY_ADOBE_RGB,
> +	EXTENDED_COLORIMETRY_BT2020_RGB,
> +	EXTENDED_COLORIMETRY_BT2020_YCC,
> +	EXTENDED_COLORIMETRY_BT2020_CYCC,
> +};

This doesn't give any way to distinguish "not set" from BT.601, which
I'm not sure I like.

Is this enum simply built to match the values you're injecting into the
InfoFrame? Would we need a different enum for DisplayPort?

- ajax