drm/amdgpu/powerplay: add BACO support for vega12

This implements BACO (Bus Active, Chip Off) support
for vega12.

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2019-02-10 21:46:59 -05:00
commit 750cced1c0
5 changed files with 197 additions and 1 deletions