From e47ac50885f530717946a41dd3aa0d9c26c6f154 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Wed, 28 Nov 2018 18:19:57 +0100
Subject: [PATCH] arm64: tegra: Add gpio-keys on Jetson Xavier
The power and force recovery buttons found on Jetson Xavier are hooked
up to two Tegra GPIOs. The power button can also function as a wake-up
source.
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
.../boot/dts/nvidia/tegra194-p2972-0000.dts | 27 +++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts b/arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts
index 2223b2b49b2d..274937042c4a 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts
@@ -1,6 +1,9 @@
// SPDX-License-Identifier: GPL-2.0
/dts-v1/;
+#include <dt-bindings/input/linux-event-codes.h>
+#include <dt-bindings/input/gpio-keys.h>
+
#include "tegra194-p2888.dtsi"
/ {
@@ -54,6 +57,30 @@ fan: fan {
#cooling-cells = <2>;
};
+ gpio-keys {
+ compatible = "gpio-keys";
+
+ force-recovery {
+ label = "Force Recovery";
+ gpios = <&gpio TEGRA194_MAIN_GPIO(G, 0)
+ GPIO_ACTIVE_LOW>;
+ linux,input-type = <EV_KEY>;
+ linux,code = <BTN_1>;
+ debounce-interval = <10>;
+ };
+
+ power {
+ label = "Power";
+ gpios = <&gpio_aon TEGRA194_AON_GPIO(EE, 4)
+ GPIO_ACTIVE_LOW>;
+ linux,input-type = <EV_KEY>;
+ linux,code = <KEY_POWER>;
+ debounce-interval = <10>;
+ wakeup-event-action = <EV_ACT_ASSERTED>;
+ wakeup-source;
+ };
+ };
+
thermal-zones {
cpu {
polling-delay = <0>;
--
2.30.9