linux/arch/arm/boot/dts/exynos4412-odroidx.dts
Marek Szyprowski 081a15e3fe ARM: dts: add support for GPIO buttons for exynos4412-odroid
This patch adds support for simple GPIO-based button availabled on
Exynos4 based Odroid boards. All supported boards have POWER button,
which has been defined in exynos4412-odroid-common.dtsi. X/X2 boards
also have additional user-configurable button which has been mapped to
KEY_HOME. All defined keys have been marked as possible wakeup source.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-07-16 02:54:07 +09:00

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/*
* Hardkernel's Exynos4412 based ODROID-X board device tree source
*
* Copyright (c) 2012 Dongjin Kim <tobetter@gmail.com>
*
* Device tree source file for Hardkernel's ODROID-X board which is based
* on Samsung's Exynos4412 SoC.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/dts-v1/;
#include "exynos4412-odroid-common.dtsi"
/ {
model = "Hardkernel ODROID-X board based on Exynos4412";
compatible = "hardkernel,odroid-x", "samsung,exynos4412", "samsung,exynos4";
memory {
reg = <0x40000000 0x3FF00000>;
};
leds {
compatible = "gpio-leds";
led1 {
label = "led1:heart";
gpios = <&gpc1 0 1>;
default-state = "on";
linux,default-trigger = "heartbeat";
};
led2 {
label = "led2:mmc0";
gpios = <&gpc1 2 1>;
default-state = "on";
linux,default-trigger = "mmc0";
};
};
serial@13820000 {
status = "okay";
};
serial@13830000 {
status = "okay";
};
gpio_keys {
pinctrl-0 = <&gpio_power_key &gpio_home_key>;
home_key {
interrupt-parent = <&gpx2>;
interrupts = <2 0>;
gpios = <&gpx2 2 0>;
linux,code = <KEY_HOME>;
label = "home key";
debounce-interval = <10>;
gpio-key,wakeup;
};
};
regulator_p3v3 {
compatible = "regulator-fixed";
regulator-name = "p3v3_en";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
gpio = <&gpa1 1 1>;
enable-active-high;
regulator-always-on;
};
};
&ehci {
port@1 {
status = "okay";
};
};
&pinctrl_1 {
gpio_home_key: home_key {
samsung,pins = "gpx2-2";
samsung,pin-pud = <0>;
};
};