Kernel-4.18.0-80.el8_ingenic,gpio

Ingenic jz47xx GPIO controller

That the Ingenic GPIO driver node must be a sub-node of the Ingenic pinctrl
driver node.

Required properties:

• compatible: Must contain one of:
  • “ingenic,jz4740-gpio”
  • “ingenic,jz4770-gpio”
  • “ingenic,jz4780-gpio”
• reg: The GPIO bank number.
• interrupt-controller: Marks the device node as an interrupt controller.
• interrupts: Interrupt specifier for the controllers interrupt.
• #interrupt-cells: Should be 2. Refer to
  ../interrupt-controller/interrupts.txt for more details.
• 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 specifies GPIO flags, as defined in <dt-bindings/gpio/gpio.h>. Only the
  GPIO_ACTIVE_HIGH and GPIO_ACTIVE_LOW flags are supported.
• gpio-ranges: Range of pins managed by the GPIO controller. Refer to
  ‘gpio.txt’ in this directory for more details.

Example:

&pinctrl {
#address-cells = <1>;
#size-cells = <0>;

gpa: gpio@0 {
    compatible = "ingenic,jz4740-gpio";
    reg = <0>;

    gpio-controller;
    gpio-ranges = <&pinctrl 0 0 32>;
    #gpio-cells = <2>;

    interrupt-controller;
    #interrupt-cells = <2>;

    interrupt-parent = <&intc>;
    interrupts = <28>;
};

};