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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>
hifive-unleashed-5.1
Marek Szyprowski 2014-07-16 02:54:07 +09:00 committed by Kukjin Kim
parent 13681526bb
commit 081a15e3fe
2 changed files with 45 additions and 0 deletions
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24
arch/arm/boot/dts/exynos4412-odroid-common.dtsi
View File

@ -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>;
};
};

21
arch/arm/boot/dts/exynos4412-odroidx.dts
View File

@ -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>;
};
};