[PATCH 06/23] drm: omapdrm: wait for pending operations before updating plane

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Updating the plane may interrupt ongoing display
updates, so wait for any pending operations.

Signed-off-By: Sebastian Reichel <sre@xxxxxxxxxx>
---
 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

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