xref: /freebsd/sys/contrib/device-tree/Bindings/gpio/nxp,lpc1850-gpio.yaml (revision 833e5d42ab135b0238e61c5b3c19b8619677cbfa)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/gpio/nxp,lpc1850-gpio.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: NXP LPC18xx/43xx GPIO controller

maintainers:
  - Frank Li <Frank.Li@nxp.com>

properties:
  compatible:
    const: nxp,lpc1850-gpio

  reg:
    minItems: 1
    maxItems: 4

  reg-names:
    minItems: 1
    items:
      - const: gpio
      - const: gpio-pin-ic
      - const: gpio-group0-ic
      - const: gpio-gpoup1-ic

  clocks:
    maxItems: 1

  resets:
    maxItems: 1

  gpio-controller: true

  '#gpio-cells':
    const: 2

  interrupt-controller: true

  '#interrupt-cells':
    const: 2
    description: |
      - The first cell is an interrupt number within
        0..9 range, for GPIO pin interrupts it is equal
        to 'nxp,gpio-pin-interrupt' property value of
        GPIO pin configuration, 8 is for GPIO GROUP0
        interrupt, 9 is for GPIO GROUP1 interrupt
      - The second cell is used to specify interrupt type

  gpio-ranges: true

required:
  - compatible
  - reg
  - clocks
  - gpio-controller
  - '#gpio-cells'

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/lpc18xx-ccu.h>

    gpio@400f4000 {
        compatible = "nxp,lpc1850-gpio";
        reg = <0x400f4000 0x4000>, <0x40087000 0x1000>,
              <0x40088000 0x1000>, <0x40089000 0x1000>;
        reg-names = "gpio", "gpio-pin-ic", "gpio-group0-ic", "gpio-gpoup1-ic";
        clocks = <&ccu1 CLK_CPU_GPIO>;
        resets = <&rgu 28>;
        gpio-controller;
        #gpio-cells = <2>;
        interrupt-controller;
        #interrupt-cells = <2>;
    };