xref: /freebsd/sys/contrib/device-tree/Bindings/gpio/blaize,blzp1600-gpio.yaml (revision ae5de77ed78ae54d86cead5604869212e8008e6b)

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/gpio/blaize,blzp1600-gpio.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Blaize BLZP1600 GPIO controller

description:
  Blaize BLZP1600 GPIO controller is an implementation of the VeriSilicon
  APB GPIO v0.2 IP block. It has 32 ports each of which are intended to be
  represented as child nodes with the generic GPIO-controller properties
  as described in this binding's file.

maintainers:
  - Nikolaos Pasaloukos <nikolaos.pasaloukos@blaize.com>
  - James Cowgill <james.cowgill@blaize.com>
  - Matt Redfearn <matt.redfearn@blaize.com>
  - Neil Jones <neil.jones@blaize.com>

properties:
  $nodename:
    pattern: "^gpio@[0-9a-f]+$"

  compatible:
    enum:
      - blaize,blzp1600-gpio

  reg:
    maxItems: 1

  gpio-controller: true

  '#gpio-cells':
    const: 2

  ngpios:
    default: 32
    minimum: 1
    maximum: 32

  interrupts:
    maxItems: 1

  gpio-line-names: true

  interrupt-controller: true

  '#interrupt-cells':
    const: 2

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

dependencies:
  interrupt-controller: [ interrupts ]

additionalProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>

    gpio: gpio@4c0000 {
      compatible = "blaize,blzp1600-gpio";
      reg = <0x004c0000 0x1000>;
      gpio-controller;
      #gpio-cells = <2>;
      ngpios = <32>;
      interrupt-controller;
      #interrupt-cells = <2>;
      interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
    };
...