1 files changed, 37 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2781-drm-amd-display-Trigger-full-update-on-plane-change.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2781-drm-amd-display-Trigger-full-update-on-plane-change.patch
new file mode 100644
index 00000000..5b33360b
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2781-drm-amd-display-Trigger-full-update-on-plane-change.patch
@@ -0,0 +1,37 @@
+From a76e3d3d7dba20ef3a2b04572d471cddc0fd03ec Mon Sep 17 00:00:00 2001
+From: "Leo (Sunpeng) Li" <sunpeng.li@amd.com>
+Date: Thu, 9 Nov 2017 15:33:43 -0500
+Subject: [PATCH 2781/4131] drm/amd/display: Trigger full update on plane
+ change
+
+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>
+---
+ drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+index 1498996..28b5c96 100644
+--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+@@ -5160,6 +5160,11 @@ static int dm_update_planes_state(struct dc *dc,
+ 				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;
+ 		}
+ 	}
+-- 
+2.7.4
+