Re: [PATCH 3/5] drm/i915: Remove redundant framebuffer format check

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On Mon, Jan 09, 2023 at 07:58:06AM -0300, Maíra Canal wrote:
> Now that framebuffer_check() verifies that the format is properly
> supported, there is no need to check it again on i915's inside
> helpers.
> 
> Therefore, remove the redundant framebuffer format check from the
> intel_framebuffer_init() function, letting framebuffer_check()
> perform the framebuffer validation.
> 
> Signed-off-by: Maíra Canal <mcanal@xxxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/display/intel_fb.c | 9 ---------
>  1 file changed, 9 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_fb.c b/drivers/gpu/drm/i915/display/intel_fb.c
> index 63137ae5ab21..230b729e42d6 100644
> --- a/drivers/gpu/drm/i915/display/intel_fb.c
> +++ b/drivers/gpu/drm/i915/display/intel_fb.c
> @@ -1914,15 +1914,6 @@ int intel_framebuffer_init(struct intel_framebuffer *intel_fb,
>  		}
>  	}
>  
> -	if (!drm_any_plane_has_format(&dev_priv->drm,
> -				      mode_cmd->pixel_format,
> -				      mode_cmd->modifier[0])) {
> -		drm_dbg_kms(&dev_priv->drm,
> -			    "unsupported pixel format %p4cc / modifier 0x%llx\n",
> -			    &mode_cmd->pixel_format, mode_cmd->modifier[0]);
> -		goto err;
> -	}
> -

This doesn't work for the legacy tiling->modifier path.

>  	/*
>  	 * gen2/3 display engine uses the fence if present,
>  	 * so the tiling mode must match the fb modifier exactly.
> -- 
> 2.39.0

-- 
Ville Syrjälä
Intel



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