Bindings for the Broadcom's brcm,bcm6345-gpio memory-mapped GPIO controllers. These bindings can be used on any BCM63xx SoC. However, BCM6338 and BCM6345 are the only ones which don't need a pinctrl driver. BCM6338 have 8-bit data and dirout registers, where GPIO state can be read and/or written, and the direction changed from input to output. BCM6345 have 16-bit data and dirout registers, where GPIO state can be read and/or written, and the direction changed from input to output. Required properties: - compatible: should be "brcm,bcm6345-gpio" - reg-names: must contain "dat" - data register "dirout" - direction (output) register - reg: address + size pairs describing the GPIO register sets; order must correspond with the order of entries in reg-names - #gpio-cells: must be set to 2. The first cell is the pin number and the second cell is used to specify the gpio polarity: 0 = active high 1 = active low - gpio-controller: Marks the device node as a gpio controller. Optional properties: - native-endian: use native endian memory. Examples: - BCM6338: gpio: gpio-controller@fffe0407 { compatible = "brcm,bcm6345-gpio"; reg-names = "dirout", "dat"; reg = <0xfffe0407 1>, <0xfffe040f 1>; #gpio-cells = <2>; gpio-controller; }; - BCM6345: gpio: gpio-controller@fffe0406 { compatible = "brcm,bcm6345-gpio"; reg-names = "dirout", "dat"; reg = <0xfffe0406 2>, <0xfffe040a 2>; native-endian; #gpio-cells = <2>; gpio-controller; };