[Intel-gfx] [PATCH] drm/i915: support two CSC module on gen11 and later

[Ville Syrjälä]

On Thu, Jan 14, 2021 at 05:22:36PM +0800, Lee Shawn C wrote:
> There are two CSC on pipeline on gen11 and later platform.
> User space application is allowed to enable CTM and RGB
> to YCbCr coversion at the same time now.
> 
> Cc: Ville Syrjala <ville.syrjala at linux.intel.com>
> Cc: Imre Deak <imre.deak at intel.com>
> Cc: Jani Nikula <jani.nikula at linux.intel.com>
> Cc: Cooper Chiou <cooper.chiou at intel.com>
> Cc: Shankar Uma <uma.shankar at intel.com>
> 
> Signed-off-by: Lee Shawn C <shawn.c.lee at intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_display.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index 1a0f00f37ca9..721d5ce1ed2b 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -8303,7 +8303,8 @@ static int intel_crtc_compute_config(struct intel_crtc *crtc,
>  		return -EINVAL;
>  	}
>  
> -	if ((pipe_config->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 ||
> +	if ((INTEL_GEN(dev_priv) < 11) &&
> +	    (pipe_config->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 ||
>  	     pipe_config->output_format == INTEL_OUTPUT_FORMAT_YCBCR444) &&
>  	     pipe_config->hw.ctm) {

Didn't realize we had this check here. It should really be moved
into {ivb,glk}_color_check().

-- 
Ville Syrjälä
Intel