diff --git a/drivers/gpu/drm/amd/amdgpu/nv.c b/drivers/gpu/drm/amd/amdgpu/nv.c
index 587d0b6821f8..80428ae470c1 100644
--- a/drivers/gpu/drm/amd/amdgpu/nv.c
+++ b/drivers/gpu/drm/amd/amdgpu/nv.c
@@ -710,8 +710,8 @@ static int nv_common_early_init(void *handle)
 		adev->external_rev_id = adev->rev_id + 0xa;
 		break;
 	case CHIP_SIENNA_CICHLID:
-		adev->cg_flags = 0;
-		adev->pg_flags = 0;
+		adev->cg_flags = AMD_CG_SUPPORT_VCN_MGCG;
+		adev->pg_flags = AMD_PG_SUPPORT_VCN;
 		adev->external_rev_id = adev->rev_id + 0x28;
 		break;
 	default: