dt-bindings: interrupt-controller: Add support for Microchip LAN966x OIC

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/interrupt-controller/microchip,lan966x-oic.yaml#

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

title: Microchip LAN966x outband interrupt controller

maintainers:

  - Herve Codina <herve.codina@bootlin.com>

allOf:

  - $ref: /schemas/interrupt-controller.yaml#

description: |

  The Microchip LAN966x outband interrupt controller (OIC) maps the internal

  interrupt sources of the LAN966x device to an external interrupt.

  When the LAN966x device is used as a PCI device, the external interrupt is

  routed to the PCI interrupt.

properties:

  compatible:

    const: microchip,lan966x-oic

  '#interrupt-cells':

    const: 2

  interrupt-controller: true

  reg:

    maxItems: 1

  interrupts:

    maxItems: 1

required:

  - compatible

  - '#interrupt-cells'

  - interrupt-controller

  - interrupts

  - reg

additionalProperties: false

examples:

  - |

    interrupt-controller@e00c0120 {

        compatible = "microchip,lan966x-oic";

        reg = <0xe00c0120 0x190>;

        #interrupt-cells = <2>;

        interrupt-controller;

        interrupts = <0>;

        interrupt-parent = <&intc>;

    };

...