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49 lines
990 B
Plaintext
49 lines
990 B
Plaintext
// Definitions for gpio-key module
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/dts-v1/;
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/plugin/;
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/ {
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compatible = "brcm,bcm2835";
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fragment@0 {
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// Configure the gpio pin controller
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target = <&gpio>;
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__overlay__ {
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pin_state: button_pins@0 {
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brcm,pins = <3>; // gpio number
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brcm,function = <0>; // 0 = input, 1 = output
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brcm,pull = <2>; // 0 = none, 1 = pull down, 2 = pull up
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};
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};
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};
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fragment@1 {
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target-path = "/";
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__overlay__ {
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button: button@0 {
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compatible = "gpio-keys";
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pinctrl-names = "default";
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pinctrl-0 = <&pin_state>;
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status = "okay";
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key: key {
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linux,code = <116>;
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gpios = <&gpio 3 1>;
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label = "KEY_POWER";
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};
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};
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};
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};
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__overrides__ {
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gpio = <&key>,"gpios:4",
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<&button>,"reg:0",
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<&pin_state>,"brcm,pins:0",
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<&pin_state>,"reg:0";
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label = <&key>,"label";
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keycode = <&key>,"linux,code:0";
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gpio_pull = <&pin_state>,"brcm,pull:0";
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active_low = <&key>,"gpios:8";
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};
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};
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