[PATCH AUTOSEL 6.1 24/24] drm/amd/display: disable S/G display on DCN 3.1.2/3

[Alex Deucher]

On Wed, Feb 15, 2023 at 3:46 PM Sasha Levin <sashal at kernel.org> wrote:
>
> From: Alex Deucher <alexander.deucher at amd.com>
>
> [ Upstream commit 077e9659581acab70f2dcc04b5bc799aca3a056b ]
>
> Causes flickering or white screens in some configurations.
> Disable it for now until we can fix the issue.
>
> Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2352
> Cc: roman.li at amd.com
> Cc: yifan1.zhang at amd.com
> Reviewed-by: Yifan Zhang <yifan1.zhang at amd.com>
> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> Signed-off-by: Sasha Levin <sashal at kernel.org>

This was reverted upstream and should be dropped.

Alex

> ---
>  drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 --
>  1 file changed, 2 deletions(-)
>
> 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 988b1c947aefc..c026ba532b733 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -1524,8 +1524,6 @@ static int amdgpu_dm_init(struct amdgpu_device *adev)
>                         break;
>                 case IP_VERSION(2, 1, 0):
>                 case IP_VERSION(3, 0, 1):
> -               case IP_VERSION(3, 1, 2):
> -               case IP_VERSION(3, 1, 3):
>                 case IP_VERSION(3, 1, 6):
>                         init_data.flags.gpu_vm_support = true;
>                         break;
> --
> 2.39.0
>