The Renesas RZ/N2H (R9A09G087) SoC includes pins which can be routed via
the ICU to generate interrupts.

Add support for using the pin controller as an interrupt chip.

Signed-off-by: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@renesas.com>
---
 arch/arm64/boot/dts/renesas/r9a09g087.dtsi | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r9a09g087.dtsi b/arch/arm64/boot/dts/renesas/r9a09g087.dtsi
index 6b5693e5c1f9..19475c72017f 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g087.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a09g087.dtsi
@@ -948,6 +948,9 @@ pinctrl: pinctrl@802c0000 {
 			gpio-controller;
 			#gpio-cells = <2>;
 			gpio-ranges = <&pinctrl 0 0 280>;
+			#interrupt-cells = <2>;
+			interrupt-controller;
+			interrupt-parent = <&icu>;
 			power-domains = <&cpg>;
 		};
 
-- 
2.52.0