drm/amdgpu: implement new cgs interface for acpi function

Add a new driver internal interface for accessing ACPI
methods.  These will be used by various new components
including powerplay.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Rex Zhu 2015-09-15 14:44:44 +08:00 • committed by Alex Deucher
commit 3f1d35a03b
2 changed files with 262 additions and 3 deletions