linux/Documentation/devicetree/bindings/gpio/gpio-twl4030.txt

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twl4030 GPIO controller bindings
Required properties:
- compatible:
- "ti,twl4030-gpio" for twl4030 GPIO controller
- #gpio-cells : Should be two.
- first cell is the pin number
- second cell is used to specify optional parameters (unused)
- gpio-controller : Marks the device node as a GPIO controller.
- #interrupt-cells : Should be 2.
- interrupt-controller: Mark the device node as an interrupt controller
The first cell is the GPIO number.
The second cell is not used.
- ti,use-leds : Enables LEDA and LEDB outputs if set
- ti,debounce : if n-th bit is set, debounces GPIO-n
- ti,mmc-cd : if n-th bit is set, GPIO-n controls VMMC(n+1)
- ti,pullups : if n-th bit is set, set a pullup on GPIO-n
- ti,pulldowns : if n-th bit is set, set a pulldown on GPIO-n
Example:
twl_gpio: gpio {
compatible = "ti,twl4030-gpio";
#gpio-cells = <2>;
gpio-controller;
#interrupt-cells = <2>;
interrupt-controller;
ti,use-leds;
};