Kernel-3.10.0-957.el7_gpio-twl4030

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;
};