diff --git a/arch/arm/boot/dts/bcm-cygnus.dtsi b/arch/arm/boot/dts/bcm-cygnus.dtsi
index 4b741f67ec6a..c592f6d82685 100644
--- a/arch/arm/boot/dts/bcm-cygnus.dtsi
+++ b/arch/arm/boot/dts/bcm-cygnus.dtsi
@@ -130,6 +130,9 @@ gpio_crmu: gpio@03024800 {
 			ngpios = <6>;
 			#gpio-cells = <2>;
 			gpio-controller;
+			interrupt-controller;
+			interrupt-parent = <&mailbox>;
+			interrupts = <0>;
 		};
 
 		i2c0: i2c@18008000 {