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1twl4030 GPIO controller bindings2 3Required properties:4- compatible:5 - "ti,twl4030-gpio" for twl4030 GPIO controller6- #gpio-cells : Should be two.7 - first cell is the pin number8 - 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 controller12 The first cell is the GPIO number.13 The second cell is not used.14- ti,use-leds : Enables LEDA and LEDB outputs if set15- ti,debounce : if n-th bit is set, debounces GPIO-n16- 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-n18- ti,pulldowns : if n-th bit is set, set a pulldown on GPIO-n19 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