1*c66ec88fSEmmanuel Vadot* Abilis TB10x GPIO controller 2*c66ec88fSEmmanuel Vadot 3*c66ec88fSEmmanuel VadotRequired Properties: 4*c66ec88fSEmmanuel Vadot- compatible: Should be "abilis,tb10x-gpio" 5*c66ec88fSEmmanuel Vadot- reg: Address and length of the register set for the device 6*c66ec88fSEmmanuel Vadot- gpio-controller: Marks the device node as a gpio controller. 7*c66ec88fSEmmanuel Vadot- #gpio-cells: Should be <2>. The first cell is the pin number and the 8*c66ec88fSEmmanuel Vadot second cell is used to specify optional parameters: 9*c66ec88fSEmmanuel Vadot - bit 0 specifies polarity (0 for normal, 1 for inverted). 10*c66ec88fSEmmanuel Vadot- abilis,ngpio: the number of GPIO pins this driver controls. 11*c66ec88fSEmmanuel Vadot 12*c66ec88fSEmmanuel VadotOptional Properties: 13*c66ec88fSEmmanuel Vadot- interrupt-controller: Marks the device node as an interrupt controller. 14*c66ec88fSEmmanuel Vadot- #interrupt-cells: Should be <1>. Interrupts are triggered on both edges. 15*c66ec88fSEmmanuel Vadot- interrupts: Defines the interrupt line connecting this GPIO controller to 16*c66ec88fSEmmanuel Vadot its parent interrupt controller. 17*c66ec88fSEmmanuel Vadot 18*c66ec88fSEmmanuel VadotGPIO ranges are specified as described in 19*c66ec88fSEmmanuel VadotDocumentation/devicetree/bindings/gpio/gpio.txt 20*c66ec88fSEmmanuel Vadot 21*c66ec88fSEmmanuel VadotExample: 22*c66ec88fSEmmanuel Vadot 23*c66ec88fSEmmanuel Vadot gpioa: gpio@ff140000 { 24*c66ec88fSEmmanuel Vadot compatible = "abilis,tb10x-gpio"; 25*c66ec88fSEmmanuel Vadot interrupt-controller; 26*c66ec88fSEmmanuel Vadot #interrupt-cells = <1>; 27*c66ec88fSEmmanuel Vadot interrupt-parent = <&tb10x_ictl>; 28*c66ec88fSEmmanuel Vadot interrupts = <27 2>; 29*c66ec88fSEmmanuel Vadot reg = <0xFF140000 0x1000>; 30*c66ec88fSEmmanuel Vadot gpio-controller; 31*c66ec88fSEmmanuel Vadot #gpio-cells = <2>; 32*c66ec88fSEmmanuel Vadot abilis,ngpio = <3>; 33*c66ec88fSEmmanuel Vadot gpio-ranges = <&iomux 0 0 0>; 34*c66ec88fSEmmanuel Vadot gpio-ranges-group-names = "gpioa_pins"; 35*c66ec88fSEmmanuel Vadot }; 36