1 files changed, 38 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0330-drm-amd-display-Add-lock-around-updating-freesync-pr.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0330-drm-amd-display-Add-lock-around-updating-freesync-pr.patch
new file mode 100644
index 00000000..aae10e73
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0330-drm-amd-display-Add-lock-around-updating-freesync-pr.patch
@@ -0,0 +1,38 @@
+From 801ecee53705e1bffefba2bed4a3b309568422ac Mon Sep 17 00:00:00 2001
+From: Harry Wentland <harry.wentland@amd.com>
+Date: Fri, 7 Apr 2017 15:03:37 -0400
+Subject: [PATCH 0330/4131] drm/amd/display: Add lock around updating freesync
+ property
+
+Getting rid of the WARN_ONs in atomic_get_property
+
+Signed-off-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_types.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c
+index e9876574..63ad629 100644
+--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c
++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c
+@@ -1195,6 +1195,7 @@ static int amdgpu_freesync_update_property_atomic(
+ 	dev  = connector->dev;
+ 	adev = dev->dev_private;
+ 
++	drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
+ 	ret = drm_object_property_get_value(
+ 			&connector->base,
+ 			adev->mode_info.freesync_property,
+@@ -1204,6 +1205,8 @@ static int amdgpu_freesync_update_property_atomic(
+ 				&connector->base,
+ 				adev->mode_info.freesync_property,
+ 				val_capable);
++	drm_modeset_unlock(&dev->mode_config.connection_mutex);
++
+ 	return ret;
+ 
+ }
+-- 
+2.7.4
+