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Commit 081a15e3 authored by Marek Szyprowski's avatar Marek Szyprowski Committed by Kukjin Kim
Browse files

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: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
parent 13681526

arch/arm/boot/dts/exynos4412-odroid-common.dtsi

+24 −0
Original line number Diff line number Diff line
@@ -7,6 +7,7 @@ 
 * published by the Free Software Foundation.

*/



#include <dt-bindings/input/input.h>

#include "exynos4412.dtsi"



/ {
@@ -15,6 +16,22 @@ 
		reg = <0x0204F000 0x1000>;

	};



	gpio_keys {

		compatible = "gpio-keys";

		pinctrl-names = "default";

		pinctrl-0 = <&gpio_power_key>;



		power_key {

			interrupt-parent = <&gpx1>;

			interrupts = <3 0>;

			gpios = <&gpx1 3 1>;

			linux,code = <KEY_POWER>;

			label = "power key";

			debounce-interval = <10>;

			gpio-key,wakeup;

		};

	};



	mmc@12550000 {

		pinctrl-0 = <&sd4_clk &sd4_cmd &sd4_bus4 &sd4_bus8>;

		pinctrl-names = "default";
@@ -316,3 +333,10 @@ 
		status = "okay";

	};

};



&pinctrl_1 {

	gpio_power_key: power_key {

		samsung,pins = "gpx1-3";

		samsung,pin-pud = <0>;

	};

};

arch/arm/boot/dts/exynos4412-odroidx.dts

+21 −0
Original line number Diff line number Diff line
@@ -46,6 +46,20 @@ 
		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";
@@ -62,3 +76,10 @@ 
		status = "okay";

	};

};



&pinctrl_1 {

	gpio_home_key: home_key {

		samsung,pins = "gpx2-2";

		samsung,pin-pud = <0>;

	};

};