wait_for_completion_timeout
ret = wait_for_completion_timeout(&commit->flip_done, 10 * HZ);
ret = wait_for_completion_timeout(&commit->hw_done,
ret = wait_for_completion_timeout(&commit->flip_done,
ret = wait_for_completion_timeout(&commit->hw_done,
ret = wait_for_completion_timeout(&commit->flip_done,
ret = wait_for_completion_timeout(&commit->hw_done,
ret = wait_for_completion_timeout(&commit->flip_done,