Updating the plane may interrupt ongoing display
updates, so wait for any pending operations.
Signed-off-By: Sebastian Reichel <sre at kernel.org>
---
drivers/gpu/drm/omapdrm/omap_drv.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c
b/drivers/gpu/drm/omapdrm/omap_drv.c
index a3ff35f5f6cd..e142a4245766 100644
--- a/drivers/gpu/drm/omapdrm/omap_drv.c
+++ b/drivers/gpu/drm/omapdrm/omap_drv.c
@@ -95,6 +95,10 @@ static void omap_atomic_complete(struct
omap_atomic_state_commit *commit)
/* Apply the atomic update. */
dispc_runtime_get();
+ dev_dbg(dev->dev, "omap_atomic_complete");
+
+ omap_atomic_wait_for_completion(dev, old_state);
+
drm_atomic_helper_commit_modeset_disables(dev, old_state);
drm_atomic_helper_commit_planes(dev, old_state, false);
drm_atomic_helper_commit_modeset_enables(dev, old_state);
--
2.7.0
