diff --git a/arch/arm/dts/uniphier-ref-daughter.dtsi b/arch/arm/dts/uniphier-ref-daughter.dtsi
index 78eccfd..9240a31 100644
--- a/arch/arm/dts/uniphier-ref-daughter.dtsi
+++ b/arch/arm/dts/uniphier-ref-daughter.dtsi
@@ -1,11 +1,9 @@
-/*
- * Device Tree Source for UniPhier Reference Daughter Board
- *
- * Copyright (C) 2015-2017 Socionext Inc.
- *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
- */
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+//
+// Device Tree Source for UniPhier Reference Daughter Board
+//
+// Copyright (C) 2015-2017 Socionext Inc.
+//   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
 
 &i2c0 {
 	eeprom@50 {