Re: [PATCH 04/16] drm/connector: Convert DRM_MODE_COLORIMETRY to enum

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On Mon, 12 Dec 2022 13:21:25 -0500
Harry Wentland <harry.wentland@xxxxxxx> wrote:

> This allows us to use strongly typed arguments.
> 
> Signed-off-by: Harry Wentland <harry.wentland@xxxxxxx>
> Cc: Pekka Paalanen <ppaalanen@xxxxxxxxx>
> Cc: Sebastian Wick <sebastian.wick@xxxxxxxxxx>
> Cc: Vitaly.Prosyak@xxxxxxx
> Cc: Uma Shankar <uma.shankar@xxxxxxxxx>
> Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> Cc: Joshua Ashton <joshua@xxxxxxxxx>
> Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
> Cc: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
> ---
>  include/drm/display/drm_dp.h |  2 +-
>  include/drm/drm_connector.h  | 47 ++++++++++++++++++------------------
>  2 files changed, 25 insertions(+), 24 deletions(-)
> 
> diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h
> index 4d0abe4c7ea9..b98697459f9c 100644
> --- a/include/drm/display/drm_dp.h
> +++ b/include/drm/display/drm_dp.h
> @@ -1615,7 +1615,7 @@ enum dp_pixelformat {
>   *
>   * This enum is used to indicate DP VSC SDP Colorimetry formats.
>   * It is based on DP 1.4 spec [Table 2-117: VSC SDP Payload for DB16 through
> - * DB18] and a name of enum member follows DRM_MODE_COLORIMETRY definition.
> + * DB18] and a name of enum member follows &enum drm_colorimetry definition.
>   *
>   * @DP_COLORIMETRY_DEFAULT: sRGB (IEC 61966-2-1) or
>   *                          ITU-R BT.601 colorimetry format
> diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
> index 62c814241828..edef65388c29 100644
> --- a/include/drm/drm_connector.h
> +++ b/include/drm/drm_connector.h
> @@ -371,28 +371,29 @@ enum drm_privacy_screen_status {
>   * a colorspace property which will be created and exposed to
>   * userspace.
>   */
> -
> -/* For Default case, driver will set the colorspace */
> -#define DRM_MODE_COLORIMETRY_DEFAULT			0
> -/* CEA 861 Normal Colorimetry options */
> -#define DRM_MODE_COLORIMETRY_SMPTE_170M_YCC		1
> -#define DRM_MODE_COLORIMETRY_BT709_YCC			2
> -/* CEA 861 Extended Colorimetry Options */
> -#define DRM_MODE_COLORIMETRY_XVYCC_601			3
> -#define DRM_MODE_COLORIMETRY_XVYCC_709			4
> -#define DRM_MODE_COLORIMETRY_SYCC_601			5
> -#define DRM_MODE_COLORIMETRY_OPYCC_601			6
> -#define DRM_MODE_COLORIMETRY_OPRGB			7
> -#define DRM_MODE_COLORIMETRY_BT2020_CYCC		8
> -#define DRM_MODE_COLORIMETRY_BT2020_RGB			9
> -#define DRM_MODE_COLORIMETRY_BT2020_YCC			10
> -/* 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_colorspace {
> +	/* For Default case, driver will set the colorspace */
> +	DRM_MODE_COLORIMETRY_DEFAULT,
> +	/* CEA 861 Normal Colorimetry options */
> +	DRM_MODE_COLORIMETRY_SMPTE_170M_YCC,
> +	DRM_MODE_COLORIMETRY_BT709_YCC,
> +	/* CEA 861 Extended Colorimetry Options */
> +	DRM_MODE_COLORIMETRY_XVYCC_601,
> +	DRM_MODE_COLORIMETRY_XVYCC_709,
> +	DRM_MODE_COLORIMETRY_SYCC_601,
> +	DRM_MODE_COLORIMETRY_OPYCC_601,
> +	DRM_MODE_COLORIMETRY_OPRGB,
> +	DRM_MODE_COLORIMETRY_BT2020_CYCC,
> +	DRM_MODE_COLORIMETRY_BT2020_RGB,
> +	DRM_MODE_COLORIMETRY_BT2020_YCC,
> +	/* Additional Colorimetry extension added as part of CTA 861.G */
> +	DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65,
> +	DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER,
> +	/* Additional Colorimetry Options added for DP 1.4a VSC Colorimetry Format */
> +	DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED,
> +	DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT,
> +	DRM_MODE_COLORIMETRY_BT601_YCC,
> +};

Hi,

what's the entry for "the traditional sRGB"?

It cannot be DRM_MODE_COLORIMETRY_DEFAULT, because the doc here says
that it maps to some driver-defined entry which may be something else.


Thanks,
pq

>  
>  /**
>   * enum drm_bus_flags - bus_flags info for &drm_display_info
> @@ -825,7 +826,7 @@ struct drm_connector_state {
>  	 * colorspace change on Sink. This is most commonly used to switch
>  	 * to wider color gamuts like BT2020.
>  	 */
> -	u32 colorspace;
> +	enum drm_colorspace colorspace;
>  
>  	/**
>  	 * @writeback_job: Writeback job for writeback connectors

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