dts: arm: odroidx2: add support for external buttons

Add support for two external buttons (power & home buttons)

Change-Id: I90544bf89c804329dfc78709d48d9eedc2c4a181
Signed-off-by: Hyungwon Hwang <human.hwang@samsung.com>

diff --git a/arch/arm/boot/dts/exynos4412-odroidx2.dts b/arch/arm/boot/dts/exynos4412-odroidx2.dts
index 063243d..d3339fd 100644 (file)
--- a/arch/arm/boot/dts/exynos4412-odroidx2.dts
+++ b/arch/arm/boot/dts/exynos4412-odroidx2.dts
@@ -71,6 +71,32 @@
                };
        };
 
+       gpio_keys {
+               compatible = "gpio-keys";
+               pinctrl-names = "default";
+               pinctrl-0 = <&gpio_power_key &gpio_home_key>;
+
+               power_key {
+                       interrupt-parent = <&gpx1>;
+                       interrupts = <3 0>;
+                       gpios = <&gpx1 3 1>;
+                       linux,code = <116>;
+                       label = "power key";
+                       debounce-interval = <10>;
+                       gpio-key,wakeup;
+               };
+
+               home_key {
+                       interrupt-parent = <&gpx2>;
+                       interrupts = <2 0>;
+                       gpios = <&gpx2 2 0>;
+                       linux,code = <139>;
+                       label = "home key";
+                       debounce-interval = <10>;
+                       gpio-key,wakeup;
+               };
+       };
+
        mshc@12550000 {
                pinctrl-0 = <&sd4_clk &sd4_cmd &sd4_bus4 &sd4_bus8>;
                pinctrl-names = "default";
@@ -572,8 +598,19 @@
 };
 
 &pinctrl_1 {
+       gpio_power_key: power_key {
+               samsung,pins = "gpx1-3";
+               samsung,pin-pud = <0>;
+       };
+
+       gpio_home_key: home_key {
+               samsung,pins = "gpx2-2";
+               samsung,pin-pud = <1>;
+       };
+
        hdmi_hpd: hdmi-hpd {
                samsung,pins = "gpx3-7";
                samsung,pin-pud = <1>;
        };
 };
+