From: "Leo (Sunpeng) Li" <sunpeng.li@amd.com>
Date: Thu, 9 Nov 2017 15:33:43 -0500
Subject: drm/amd/display: Trigger full update on plane change
Git-commit: 000b59ea9f8360a3e82efe1f4adef4d215ba18c8
Patch-mainline: v4.16-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

With the optimized DCN10 frontend programming code, things are
programmed only when requested. For now, trigger a full update on all
plane changes.

Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@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 |    5 +++++
 1 file changed, 5 insertions(+)

--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -4706,6 +4706,11 @@ static int dm_update_planes_state(struct
 				return ret;
 			}
 
+			/* Tell DC to do a full surface update every time there
+			 * is a plane change. Inefficient, but works for now.
+			 */
+			dm_new_plane_state->dc_state->update_flags.bits.full_update = 1;
+
 			*lock_and_validation_needed = true;
 		}
 	}