On 2022-08-04 01:50, Dave Airlie wrote:
> When this file was split in
>
> 5d945cbcd4b16a29d6470a80dfb19738f9a4319f
> Author: Rodrigo Siqueira <rodrigo.sique...@amd.com>
> Date: Wed Jul 20 15:31:42 2022 -0400
>
> drm/amd/display: Create a file dedicated to planes
>
> This chunk seemed to get dropped. Linus noticed on this
> rx580 and I've reproduced on FIJI which makes sense as these
> are pre-modifier GPUs.
>
> With this applied, I get gdm back.
>
> Fixes: 5d945cbcd4b1 ("drm/amd/display: Create a file dedicated to planes")
> Signed-off-by: Dave Airlie <airl...@redhat.com>
Reviewed-by: Harry Wentland <harry.wentl...@amd.com>
Harry
> ---
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
> b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
> index 8cd25b2ea0dc..b841b8b0a9d8 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
> @@ -1591,6 +1591,9 @@ int amdgpu_dm_plane_init(struct amdgpu_display_manager
> *dm,
> if (res)
> return res;
>
> + if (modifiers == NULL)
> + adev_to_drm(dm->adev)->mode_config.fb_modifiers_not_supported =
> true;
> +
> res = drm_universal_plane_init(adev_to_drm(dm->adev), plane,
> possible_crtcs,
> &dm_plane_funcs, formats, num_formats,
> modifiers, plane->type, NULL);
