1twl4030 GPIO controller bindings
2
3Required properties:
4- compatible:
5  - "ti,twl4030-gpio" for twl4030 GPIO controller
6- #gpio-cells : Should be two.
7  - first cell is the pin number
8  - second cell is used to specify optional parameters (unused)
9- gpio-controller : Marks the device node as a GPIO controller.
10- #interrupt-cells : Should be 2.
11- interrupt-controller: Mark the device node as an interrupt controller
12  The first cell is the GPIO number.
13  The second cell is not used.
14- ti,use-leds : Enables LEDA and LEDB outputs if set
15- ti,debounce : if n-th bit is set, debounces GPIO-n
16- ti,mmc-cd : if n-th bit is set, GPIO-n controls VMMC(n+1)
17- ti,pullups : if n-th bit is set, set a pullup on GPIO-n
18- ti,pulldowns : if n-th bit is set, set a pulldown on GPIO-n
19
20Example:
21
22twl_gpio: gpio {
23    compatible = "ti,twl4030-gpio";
24    #gpio-cells = <2>;
25    gpio-controller;
26    #interrupt-cells = <2>;
27    interrupt-controller;
28    ti,use-leds;
29};
30