drm/amdgpu/powerplay/raven: add smu block and enable powerplay

Add the ip block and enable powerplay on raven.

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_powerplay.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_powerplay.c
index f5ae871..72c03c7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_powerplay.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_powerplay.c
@@ -72,6 +72,7 @@ static int amdgpu_pp_early_init(void *handle)
 	case CHIP_CARRIZO:
 	case CHIP_STONEY:
 	case CHIP_VEGA10:
+	case CHIP_RAVEN:
 		adev->pp_enabled = true;
 		if (amdgpu_create_pp_handle(adev))
 			return -EINVAL;