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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
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