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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>
This commit is contained in:
Felipe Balbi 2014-12-26 14:53:13 -06:00 committed by Tony Lindgren
parent f4b3690935
commit cd5bca6f62
1 changed files with 24 additions and 0 deletions
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24
arch/arm/boot/dts/am437x-idk-evm.dts
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@ -96,9 +96,29 @@ v1_5d: fixed-regulator-v1_5d{
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 @@ &gpio1 {
status = "okay";
};
&gpio4 {
status = "okay";
};
&gpio5 {
status = "okay";
};