drm/amdgpu: set CG flags for raven2 (v2)

Raven2 does not enable all of the CG flags that raven1 does.

v2: rebase (Alex)
Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/soc15.c

@@ -714,6 +714,23 @@ static int soc15_common_early_init(void *handle)
 		adev->external_rev_id = adev->rev_id + 0x28;
 		break;
 	case CHIP_RAVEN:
+		if (adev->rev_id >= 0x8)
+			adev->cg_flags = AMD_CG_SUPPORT_GFX_MGCG |
+				AMD_CG_SUPPORT_GFX_MGLS |
+				AMD_CG_SUPPORT_GFX_CP_LS |
+				AMD_CG_SUPPORT_GFX_3D_CGCG |
+				AMD_CG_SUPPORT_GFX_3D_CGLS |
+				AMD_CG_SUPPORT_GFX_CGCG |
+				AMD_CG_SUPPORT_GFX_CGLS |
+				AMD_CG_SUPPORT_BIF_LS |
+				AMD_CG_SUPPORT_HDP_LS |
+				AMD_CG_SUPPORT_ROM_MGCG |
+				AMD_CG_SUPPORT_MC_MGCG |
+				AMD_CG_SUPPORT_MC_LS |
+				AMD_CG_SUPPORT_SDMA_MGCG |
+				AMD_CG_SUPPORT_SDMA_LS |
+				AMD_CG_SUPPORT_VCN_MGCG;
+		else
 			adev->cg_flags = AMD_CG_SUPPORT_GFX_MGCG |
 				AMD_CG_SUPPORT_GFX_MGLS |
 				AMD_CG_SUPPORT_GFX_RLC_LS |