From: Thierry Reding <treding@xxxxxxxxxx>
The P2771 development board expands the number of GPIOs via two I2C
chips.
Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts b/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
index 9485841e3351..eac75764bf3c 100644
--- a/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
@@ -18,6 +18,28 @@
compatible = "ti,ina3221";
reg = <0x43>;
};
+
+ exp1: gpio@74 {
+ compatible = "ti,tca9539";
+ reg = <0x74>;
+
+ interrupt-parent = <&gpio>;
+ interrupts = <TEGRA_MAIN_GPIO(Y, 0) GPIO_ACTIVE_LOW>;
+
+ #gpio-cells = <2>;
+ gpio-controller;
+ };
+
+ exp2: gpio@77 {
+ compatible = "ti,tca9539";
+ reg = <0x77>;
+
+ interrupt-parent = <&gpio>;
+ interrupts = <TEGRA_MAIN_GPIO(Y, 6) GPIO_ACTIVE_LOW>;
+
+ #gpio-cells = <2>;
+ gpio-controller;
+ };
};
gpio-keys {
--
2.11.1
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