dt-bindings: gpio: brcm: Add bindings for xgs-iproc

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/gpio/brcm,xgs-iproc-gpio.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Broadcom XGS iProc GPIO controller

maintainers:

  - Chris Packham <chris.packham@alliedtelesis.co.nz>

description: |

  This controller is the Chip Common A GPIO present on a number of Broadcom

  switch ASICs with integrated SoCs.

properties:

  compatible:

    const: brcm,iproc-gpio-cca

  reg:

    items:

      - description: the I/O address containing the GPIO controller

                     registers.

      - description: the I/O address containing the Chip Common A interrupt

                     registers.

  gpio-controller: true

  '#gpio-cells':

      const: 2

  ngpios:

    minimum: 0

    maximum: 32

  interrupt-controller: true

  '#interrupt-cells':

    const: 2

  interrupts:

    maxItems: 1

required:

  - compatible

  - reg

  - "#gpio-cells"

  - gpio-controller

dependencies:

  interrupt-controller: [ interrupts ]

examples:

  - |

    #include <dt-bindings/interrupt-controller/irq.h>

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

    gpio@18000060 {

        compatible = "brcm,iproc-gpio-cca";

        #gpio-cells = <2>;

        reg = <0x18000060 0x50>,

              <0x18000000 0x50>;

        ngpios = <12>;

        gpio-controller;

        interrupt-controller;

        #interrupt-cells = <2>;

        interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;

    };

...