This supports TCA9539 gpio expanders on I2C2 bus on ULCB Kingfisher board
Signed-off-by: Vladimir Barinov <vladimir.barinov@xxxxxxxxxxxxxxxxxx>
---
Changes in version 2:
- use generic node name "gpio"
Changes in version 3:
- changed pca9539 to tca9539
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 71dee77..40885e7 100644
--- a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
+++ b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
@@ -48,6 +48,28 @@
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";
};
--
1.9.1
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