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authorFelipe Balbi <balbi@ti.com>2014-12-26 23:53:13 +0300
committerTony Lindgren <tony@atomide.com>2015-01-08 03:25:10 +0300
commitcd5bca6f627442b63012ac0cafc6452bc929832e (patch)
tree3eda3db265379b9e57cd41cb66be1e2648a5368e /arch/arm/boot/dts/am437x-idk-evm.dts
parentf4b36909353ada35374dc51676f73362443bf206 (diff)
downloadlinux-cd5bca6f627442b63012ac0cafc6452bc929832e.tar.xz
ARM: dts: am437x-idk: add gpio-based power key
AM437x IDK board has a User Switch which we can program to whatever we want. Because this board doesn't have a PMIC which can give us power button presses, let's use this user switch as a gpio-keys power button. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/boot/dts/am437x-idk-evm.dts')
-rw-r--r--arch/arm/boot/dts/am437x-idk-evm.dts24
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/am437x-idk-evm.dts b/arch/arm/boot/dts/am437x-idk-evm.dts
index b52dd0a72d61..f9a17e2ca8cb 100644
--- a/arch/arm/boot/dts/am437x-idk-evm.dts
+++ b/arch/arm/boot/dts/am437x-idk-evm.dts
@@ -96,9 +96,29 @@
regulator-boot-on;
vin-supply = <&v1_5dreg>;
};
+
+ gpio_keys: gpio_keys {
+ compatible = "gpio-keys";
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio_keys_pins_default>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ switch@0 {
+ label = "power-button";
+ linux,code = <KEY_POWER>;
+ gpios = <&gpio4 2 GPIO_ACTIVE_LOW>;
+ };
+ };
};
&am43xx_pinmux {
+ gpio_keys_pins_default: gpio_keys_pins_default {
+ pinctrl-single,pins = <
+ 0x1b8 (PIN_INPUT | MUX_MODE7) /* cam0_field.gpio4_2 */
+ >;
+ };
+
i2c0_pins_default: i2c0_pins_default {
pinctrl-single,pins = <
0x188 (PIN_INPUT | SLEWCTRL_FAST | MUX_MODE0) /* i2c0_sda.i2c0_sda */
@@ -282,6 +302,10 @@
status = "okay";
};
+&gpio4 {
+ status = "okay";
+};
+
&gpio5 {
status = "okay";
};