drm/amdgpu: refine si_read_register

Signed-off-by: Flora Cui <Flora.Cui@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Flora Cui 2017-02-07 15:24:25 +08:00 • committed by Alex Deucher
commit dd5dfa61b4