From: rex zhu <rex.zhu@amd.com>
Date: Wed, 27 Jun 2018 18:19:08 +0800
Subject: drm/amd/display: Ctrl stutter mode through module parameter
Git-commit: e856ec3c292ecd6c15e38f2c6c22b350dc0daa17
Patch-mainline: v4.19-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

use ppfeaturemask to enable/disable stutter mode.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1535,7 +1535,7 @@ static int amdgpu_dm_initialize_drm_devi
 		/*
 		 * Temporary disable until pplib/smu interaction is implemented
 		 */
-		dm->dc->debug.disable_stutter = true;
+		dm->dc->debug.disable_stutter = amdgpu_pp_feature_mask & PP_STUTTER_MODE ? false : true;
 		break;
 #endif
 	default: