arm64: dts: ulcb-kf: enable TCA9539 on I2C2

This supports TCA9539 gpio expanders on I2C2 bus on ULCB Kingfisher board

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

1 files changed, 22 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
index 27657fec9696..80444aee7bcb 100644
--- a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
+++ b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
@@ -44,6 +44,28 @@
         status = "okay";
 };
 
+&i2c2 {
+        gpio_exp_74: gpio@74 {
+                compatible = "ti,tca9539";
+                reg = <0x74>;
+                gpio-controller;
+                #gpio-cells = <2>;
+                interrupt-controller;
+                interrupt-parent = <&gpio6>;
+                interrupts = <8 IRQ_TYPE_EDGE_FALLING>;
+        };
+
+        gpio_exp_75: gpio@75 {
+                compatible = "ti,tca9539";
+                reg = <0x75>;
+                gpio-controller;
+                #gpio-cells = <2>;
+                interrupt-controller;
+                interrupt-parent = <&gpio6>;
+                interrupts = <4 IRQ_TYPE_EDGE_FALLING>;
+        };
+};
+
 &ohci0 {
         status = "okay";
 };