xref: /openbmc/linux/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.yaml (revision dfb49cc2)

# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/gpio/fsl-imx-gpio.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Freescale i.MX/MXC GPIO controller

maintainers:
  - Anson Huang <Anson.Huang@nxp.com>

properties:
  compatible:
    oneOf:
      - enum:
          - fsl,imx1-gpio
          - fsl,imx21-gpio
          - fsl,imx31-gpio
          - fsl,imx35-gpio
          - fsl,imx7d-gpio
      - items:
          - enum:
              - fsl,imx8mm-gpio
              - fsl,imx8mn-gpio
              - fsl,imx8mp-gpio
              - fsl,imx8mq-gpio
              - fsl,imx8qxp-gpio
          - const: fsl,imx35-gpio

  reg:
    maxItems: 1

  interrupts:
    description: |
      Should be the port interrupt shared by all 32 pins, if one number.
      If two numbers, the first one is the interrupt shared by low 16 pins
      and the second one is for high 16 pins.
    minItems: 1
    maxItems: 2

  interrupt-controller: true

  "#interrupt-cells":
    const: 2

  clocks:
    maxItems: 1

  "#gpio-cells":
    const: 2

  gpio-controller: true

  gpio-ranges: true

patternProperties:
  "^(hog-[0-9]+|.+-hog(-[0-9]+)?)$":
    type: object
    properties:
      gpio-hog: true
      gpios: true
      input: true
      output-high: true
      output-low: true
      line-name: true

    required:
      - gpio-hog
      - gpios

    additionalProperties: false

required:
  - compatible
  - reg
  - interrupts
  - interrupt-controller
  - "#interrupt-cells"
  - "#gpio-cells"
  - gpio-controller

additionalProperties: false

examples:
  - |
    gpio0: gpio@73f84000 {
        compatible = "fsl,imx35-gpio";
        reg = <0x73f84000 0x4000>;
        interrupts = <50 51>;
        gpio-controller;
        #gpio-cells = <2>;
        interrupt-controller;
        #interrupt-cells = <2>;
    };

...