From: Thierry Reding <treding@xxxxxxxxxx>
The P2771 has three keys (power, volume up and volume down) that are
connected to pins on the AON GPIO controller.
Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts | 34 ++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts b/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
index 0d3c0996d832..1c195d71806d 100644
--- a/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
@@ -1,8 +1,42 @@
/dts-v1/;
+#include <dt-bindings/input/linux-event-codes.h>
+
#include "tegra186-p3310.dtsi"
/ {
model = "NVIDIA Tegra186 P2771-0000 Development Board";
compatible = "nvidia,p2771-0000", "nvidia,tegra186";
+
+ gpio-keys {
+ compatible = "gpio-keys";
+
+ power {
+ label = "Power";
+ gpios = <&gpio_aon TEGRA_AON_GPIO(FF, 0)
+ GPIO_ACTIVE_LOW>;
+ linux,input-type = <EV_KEY>;
+ linux,code = <KEY_POWER>;
+ debounce-interval = <10>;
+ wakeup-source;
+ };
+
+ volume-up {
+ label = "Volume Up";
+ gpios = <&gpio_aon TEGRA_AON_GPIO(FF, 1)
+ GPIO_ACTIVE_LOW>;
+ linux,input-type = <EV_KEY>;
+ linux,code = <KEY_VOLUMEUP>;
+ debounce-interval = <10>;
+ };
+
+ volume-down {
+ label = "Volume Down";
+ gpios = <&gpio_aon TEGRA_AON_GPIO(FF, 2)
+ GPIO_ACTIVE_LOW>;
+ linux,input-type = <EV_KEY>;
+ linux,code = <KEY_VOLUMEDOWN>;
+ debounce-interval = <10>;
+ };
+ };
};
--
2.11.1
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