Gateworks PLD GPIO controller bindings The GPIO controller should be a child node on an I2C bus, see: i2c/i2c.txt for details. Required properties: - compatible: Should be "gateworks,pld-gpio" - reg: I2C slave address - gpio-controller: Marks the device node as a GPIO controller. - #gpio-cells: Should be <2>. The first cell is the gpio number and the second cell is used to specify optional parameters. Example: pld@56 { compatible = "gateworks,pld-gpio"; reg = <0x56>; gpio-controller; #gpio-cells = <2>; };