From: Huang Rui <ray.huang@amd.com>
Date: Thu, 14 Dec 2017 13:47:16 +0800
Subject: drm/amdgpu: disable MMHUB power gating on raven
Git-commit: 400b6afbaa949914460e5fd1d769c5e26ef1f6b8
Patch-mainline: v4.16-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

MMHUB power gating still has issue, and doesn't work on raven at current. So
disable it for the moment.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Acked-by: Hawking Zhang <Hawking.Zhang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/amdgpu/soc15.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -666,8 +666,8 @@ static int soc15_common_early_init(void
 			AMD_CG_SUPPORT_MC_LS |
 			AMD_CG_SUPPORT_SDMA_MGCG |
 			AMD_CG_SUPPORT_SDMA_LS;
-		adev->pg_flags = AMD_PG_SUPPORT_SDMA |
-				 AMD_PG_SUPPORT_MMHUB;
+		adev->pg_flags = AMD_PG_SUPPORT_SDMA;
+
 		adev->external_rev_id = 0x1;
 		break;
 	default: