Merge tag 'amd-drm-fixes-5.12-2021-02-24' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

amd-drm-fixes-5.12-2021-02-24:

amdgpu:
- Clang warning fix
- S0ix platform shutdown/poweroff fix
- Misc display fixes

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210225043853.3880-1-alexander.deucher@amd.com