[PATCH v3 01/11] drm/amd/display: Do not silently accept DCC for multiplane formats.

[Kazlauskas, Nicholas]

On 2020-10-21 7:31 p.m., Bas Nieuwenhuizen wrote:
> Silently accepting it could result in corruption.
> 
> Signed-off-by: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas at amd.com>

> ---
>   drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 2713caac4f2a..73987fdb6a09 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -3908,7 +3908,7 @@ fill_plane_dcc_attributes(struct amdgpu_device *adev,
>   		return 0;
>   
>   	if (format >= SURFACE_PIXEL_FORMAT_VIDEO_BEGIN)
> -		return 0;
> +		return -EINVAL;
>   
>   	if (!dc->cap_funcs.get_dcc_compression_cap)
>   		return -EINVAL;
>