Re: [RFC PATCH 03/40] drm/amd/display: introduce Steam Deck color features to AMD display driver

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On 4/23/23 10:10, Melissa Wen wrote:
> We are enabling a large set of color calibration features to enhance KMS
> color mgmt but these properties are specific of AMD display HW, and
> cannot be provided by other vendors. Therefore, set a config option to
> enable AMD driver-private properties used on Steam Deck color mgmt
> pipeline.
> 
> Co-developed-by: Joshua Ashton <joshua@xxxxxxxxx>
> Signed-off-by: Joshua Ashton <joshua@xxxxxxxxx>
> Signed-off-by: Melissa Wen <mwen@xxxxxxxxxx>
> ---
>  drivers/gpu/drm/amd/display/Kconfig | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/gpu/drm/amd/display/Kconfig b/drivers/gpu/drm/amd/display/Kconfig
> index 06b438217c61..c45a8deb1098 100644
> --- a/drivers/gpu/drm/amd/display/Kconfig
> +++ b/drivers/gpu/drm/amd/display/Kconfig
> @@ -53,5 +53,11 @@ config DRM_AMD_SECURE_DISPLAY
>              of crc of specific region via debugfs.
>              Cooperate with specific DMCU FW.
>  
> +config STEAM_DECK
> +	bool "Enable color calibration features for Steam Deck"
> +	depends on DRM_AMD_DC
> +	help
> +	  Choose this option if you want to use AMDGPU features for broader
> +	  color management support on Steam Deck.
>  

If we can drop this (i.e. don't offer a CONFIG_ option to allow enablement of
the uAPI, but build with -DCONFIG_STEAM_DECK) it would go a long way to keep
us from requiring to support this forever.

Harry

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