[PATCH v2 15/18] arm64: dts: ulcb-kf: enable PCA9539 on I2C4

[Vladimir Barinov]

This supports PCA9539 gpio expanders on I2C4 bus on ULCB Kingfisher board

Signed-off-by: Vladimir Barinov <vladimir.bari...@cogentembedded.com>
---
Changes in version 2:
- use generic node name "gpio"

 arch/arm64/boot/dts/renesas/ulcb-kf.dtsi | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi 
b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
index 40885e7..1cf8466 100644
--- a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
+++ b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
@@ -70,6 +70,28 @@
        };
 };
 
+&i2c4 {
+       gpio_exp_76: gpio@76 {
+               compatible = "nxp,pca9539";
+               reg = <0x76>;
+               gpio-controller;
+               #gpio-cells = <2>;
+               interrupt-controller;
+               interrupt-parent = <&gpio7>;
+               interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
+       };
+
+       gpio_exp_77: gpio@77 {
+               compatible = "nxp,pca9539";
+               reg = <0x77>;
+               gpio-controller;
+               #gpio-cells = <2>;
+               interrupt-controller;
+               interrupt-parent = <&gpio5>;
+               interrupts = <9 IRQ_TYPE_EDGE_FALLING>;
+       };
+};
+
 &ohci0 {
        status = "okay";
 };
-- 
1.9.1