Re: [Intel-gfx] [PATCH] drm/i915: update DSC feature flag handling during device init

["Lisovskiy, Stanislav" <stanislav.lisovskiy@intel.com>]

On Tue, Oct 11, 2022 at 12:30:48PM +0300, Vinod Govindapillai wrote:
> DSC feature information is no longer part of the DFSM register in
> some display generations.

Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>

> 
> Bspec:50075
> Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
> ---
>  drivers/gpu/drm/i915/intel_device_info.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
> index 908ec241fe71..17d2e3293892 100644
> --- a/drivers/gpu/drm/i915/intel_device_info.c
> +++ b/drivers/gpu/drm/i915/intel_device_info.c
> @@ -480,7 +480,7 @@ void intel_device_info_runtime_init(struct drm_i915_private *dev_priv)
>  		if (DISPLAY_VER(dev_priv) >= 11 && (dfsm & ICL_DFSM_DMC_DISABLE))
>  			runtime->has_dmc = 0;
>  
> -		if (DISPLAY_VER(dev_priv) >= 10 &&
> +		if (IS_DISPLAY_VER(dev_priv, 10, 12) &&
>  		    (dfsm & GLK_DFSM_DISPLAY_DSC_DISABLE))
>  			runtime->has_dsc = 0;
>  	}
> -- 
> 2.34.1
>