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

   1 twl4030 GPIO controller bindings
   2
   3 Required 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
  20 Example:
  21
  22 twl_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 };