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Diffstat (limited to 'Bindings/input/gpio-keys.txt')
-rw-r--r-- | Bindings/input/gpio-keys.txt | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Bindings/input/gpio-keys.txt b/Bindings/input/gpio-keys.txt index 5c2c02140a62..44b705767aca 100644 --- a/Bindings/input/gpio-keys.txt +++ b/Bindings/input/gpio-keys.txt @@ -11,15 +11,22 @@ Each button (key) is represented as a sub-node of "gpio-keys": Subnode properties: - gpios: OF device-tree gpio specification. + - interrupts: the interrupt line for that input. - label: Descriptive name of the key. - linux,code: Keycode to emit. +Note that either "interrupts" or "gpios" properties can be omitted, but not +both at the same time. Specifying both properties is allowed. + 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. + - linux,can-disable: Boolean, indicates that button is connected + to dedicated (not shared) interrupt which can be disabled to + suppress events from the button. Example nodes: @@ -33,4 +40,9 @@ Example nodes: linux,code = <103>; gpios = <&gpio1 0 1>; }; + button@22 { + label = "GPIO Key DOWN"; + linux,code = <108>; + interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + }; ... |