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-rw-r--r--Documentation/devicetree/bindings/gpio/gpio_keys.txt36
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diff --git a/Documentation/devicetree/bindings/gpio/gpio_keys.txt b/Documentation/devicetree/bindings/gpio/gpio_keys.txt
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--- a/Documentation/devicetree/bindings/gpio/gpio_keys.txt
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-Device-Tree bindings for input/gpio_keys.c keyboard driver
-
-Required properties:
- - compatible = "gpio-keys";
-
-Optional properties:
- - autorepeat: Boolean, Enable auto repeat feature of Linux input
- subsystem.
-
-Each button (key) is represented as a sub-node of "gpio-keys":
-Subnode properties:
-
- - gpios: OF device-tree gpio specification.
- - label: Descriptive name of the key.
- - linux,code: Keycode to emit.
-
-Optional subnode-properties:
- - linux,input-type: Specify event type this button/key generates.
- If not specified defaults to <1> == EV_KEY.
- - debounce-interval: Debouncing interval time in milliseconds.
- If not specified defaults to 5.
- - gpio-key,wakeup: Boolean, button can wake-up the system.
-
-Example nodes:
-
- gpio_keys {
- compatible = "gpio-keys";
- #address-cells = <1>;
- #size-cells = <0>;
- autorepeat;
- button@21 {
- label = "GPIO Key UP";
- linux,code = <103>;
- gpios = <&gpio1 0 1>;
- };
- ...