diff --git a/arch/arm/boot/dts/uniphier-pinctrl.dtsi b/arch/arm/boot/dts/uniphier-pinctrl.dtsi
index f6c5cf2281d53f29e826ece4a1dee02322c5d875..425b8f1e1ae5c3f0c4ef9e4bc46babad43b924c9 100644
--- a/arch/arm/boot/dts/uniphier-pinctrl.dtsi
+++ b/arch/arm/boot/dts/uniphier-pinctrl.dtsi
@@ -8,6 +8,11 @@
  */
 
 &pinctrl {
+	pinctrl_aout: aout_grp {
+		groups = "aout";
+		function = "aout";
+	};
+
 	pinctrl_emmc: emmc_grp {
 		groups = "emmc", "emmc_dat8";
 		function = "emmc";