diff --git a/arch/arm/boot/dts/st/stm32mp157c-dk2.dts b/arch/arm/boot/dts/st/stm32mp157c-dk2.dts
index 78165c7865e1..1ec3b8f2faa9 100644
--- a/arch/arm/boot/dts/st/stm32mp157c-dk2.dts
+++ b/arch/arm/boot/dts/st/stm32mp157c-dk2.dts
@@ -62,6 +62,12 @@
 	remote-endpoint = <&panel_in>;
 };
 
+&hdp {
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&hdp2_gpo &hdp2_pins_a>;
+	pinctrl-1 = <&hdp2_sleep_pins_a>;
+};
+
 &i2c1 {
 	touchscreen@38 {
 		compatible = "focaltech,ft6236";