drm/amdgpu: fix mode2 reset sequence for vangogh

We need to save and restore PCI config space.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Huang Rui <ray.huang@amd.com>
This commit is contained in:
Alex Deucher 2020-11-25 11:21:31 -05:00 • committed by Alex Deucher
commit b913ec628c