From f841fe13911e8980793308f51d652fcaba6204c9 Mon Sep 17 00:00:00 2001
From: Brian Kim <brian.kim@hardkernel.com>
Date: Thu, 2 Mar 2017 12:24:47 +0900
Subject: [PATCH] ARM: dts: exynos5422-odroidxu3: Enable power key

This changes enables the power button on the Exynos5422 Odroid-XU3/4
boards.

Change-Id: Iafd025be921da348797b6a510586abf3e47bfe75
Signed-off-by: Brian Kim <brian.kim@hardkernel.com>
---
 .../boot/dts/exynos5422-odroidxu3-common.dtsi | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
index 9067d83e343f..4a2398f5bb97 100755
--- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
@@ -13,6 +13,7 @@
 */
 
 #include <dt-bindings/clock/samsung,s2mps11.h>
+#include <dt-bindings/input/input.h>
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/sound/samsung-i2s.h>
@@ -51,6 +52,22 @@
 		status = "okay";
 	};
 
+	gpio_keys {
+		compatible = "gpio-keys";
+		pinctrl-names = "default";
+		pinctrl-0 = <&gpio_power_key>;
+
+		power_key {
+			interrupt-parent = <&gpx0>;
+			interrupts = <3 0>;
+			gpios = <&gpx0 3 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_POWER>;
+			label = "power key";
+			debounce-interval = <10>;
+			wakeup-source;
+		};
+	};
+
 	emmc_pwrseq: pwrseq {
 		pinctrl-0 = <&emmc_nrst_pin>;
 		pinctrl-names = "default";
@@ -620,6 +637,11 @@
 };
 
 &pinctrl_0 {
+	gpio_power_key: power_key {
+		samsung,pins = "gpx0-3";
+		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+	};
+
 	hdmi_hpd_irq: hdmi-hpd-irq {
 		samsung,pins = "gpx3-7";
 		samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;