diff --git a/arch/arm/boot/dts/r8a7791-koelsch.dts b/arch/arm/boot/dts/r8a7791-koelsch.dts
index e4dbf464c960..61e881bbbf6e 100644
--- a/arch/arm/boot/dts/r8a7791-koelsch.dts
+++ b/arch/arm/boot/dts/r8a7791-koelsch.dts
@@ -81,6 +81,9 @@ lbsc {
 	keyboard {
 		compatible = "gpio-keys";
 
+		pinctrl-0 = <&sw2_pins>;
+		pinctrl-names = "default";
+
 		key-1 {
 			gpios = <&gpio5 0 GPIO_ACTIVE_LOW>;
 			linux,code = <KEY_1>;
@@ -618,6 +621,11 @@ sound_clk_pins: sound_clk {
 		groups = "audio_clk_a";
 		function = "audio_clk";
 	};
+
+	sw2_pins: sw2 {
+		pins = "GP_5_0", "GP_5_1", "GP_5_2", "GP_5_3";
+		bias-pull-up;
+	};
 };
 
 &ether {