diff --git a/arch/arm/mach-uniphier/pinctrl/Makefile b/arch/arm/mach-uniphier/pinctrl/Makefile
index 8517595..80a9cda 100644
--- a/arch/arm/mach-uniphier/pinctrl/Makefile
+++ b/arch/arm/mach-uniphier/pinctrl/Makefile
@@ -1,3 +1,7 @@
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
 obj-$(CONFIG_ARCH_UNIPHIER_PH1_SLD3)	+= pinctrl-ph1-sld3.o
 obj-$(CONFIG_ARCH_UNIPHIER_PH1_LD4)	+= pinctrl-ph1-ld4.o
 obj-$(CONFIG_ARCH_UNIPHIER_PH1_PRO4)	+= pinctrl-ph1-pro4.o