diff --git a/drivers/devfreq/devfreq-event.c b/drivers/devfreq/devfreq-event.c
index 87e9340..3dc5fd6 100644
--- a/drivers/devfreq/devfreq-event.c
+++ b/drivers/devfreq/devfreq-event.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * devfreq-event: a framework to provide raw data and events of devfreq devices
  *
  * Copyright (C) 2015 Samsung Electronics
  * Author: Chanwoo Choi <cw00.choi@samsung.com>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
  * This driver is based on drivers/devfreq/devfreq.c.
  */