Kernel-4.18.0-80.el8_abilis,tb10x-gpio

• Abilis TB10x GPIO controller

Required Properties:

• compatible: Should be “abilis,tb10x-gpio”
• reg: Address and length of the register set for the device
• gpio-controller: Marks the device node as a gpio controller.
• #gpio-cells: Should be <2>. The first cell is the pin number and the
  second cell is used to specify optional parameters:
  • bit 0 specifies polarity (0 for normal, 1 for inverted).
• abilis,ngpio: the number of GPIO pins this driver controls.

Optional Properties:

• interrupt-controller: Marks the device node as an interrupt controller.
• #interrupt-cells: Should be <1>. Interrupts are triggered on both edges.
• interrupts: Defines the interrupt line connecting this GPIO controller to
  its parent interrupt controller.
• interrupt-parent: Defines the parent interrupt controller.

GPIO ranges are specified as described in
Documentation/devicetree/bindings/gpio/gpio.txt

Example:

gpioa: gpio@ff140000 {
    compatible = "abilis,tb10x-gpio";
    interrupt-controller;
    #interrupt-cells = <1>;
    interrupt-parent = <&tb10x_ictl>;
    interrupts = <27 2>;
    reg = <0xFF140000 0x1000>;
    gpio-controller;
    #gpio-cells = <2>;
    abilis,ngpio = <3>;
    gpio-ranges = <&iomux 0 0 0>;
    gpio-ranges-group-names = "gpioa_pins";
};