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.
+ - wakeup-source: Boolean, button can wake-up the system.
+ (Legacy property supported: "gpio-key,wakeup")
- linux,can-disable: Boolean, indicates that button is connected
to dedicated (not shared) interrupt which can be disabled to
suppress events from the button.