dt-bindings: interrupt-controller: Convert openrisc,ompic to DT schema

Open Multi-Processor Interrupt Controller

Required properties:

- compatible : This should be "openrisc,ompic"

- reg : Specifies base physical address and size of the register space. The

  size is based on the number of cores the controller has been configured

  to handle, this should be set to 8 bytes per cpu core.

- interrupt-controller : Identifies the node as an interrupt controller.

- #interrupt-cells : This should be set to 0 as this will not be an irq

  parent.

- interrupts : Specifies the interrupt line to which the ompic is wired.

Example:

ompic: interrupt-controller@98000000 {

	compatible = "openrisc,ompic";

	reg = <0x98000000 16>;

	interrupt-controller;

	#interrupt-cells = <0>;

	interrupts = <1>;

};

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/interrupt-controller/openrisc,ompic.yaml#

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

title: Open Multi-Processor Interrupt Controller

maintainers:

  - Stafford Horne <shorne@gmail.com>

properties:

  compatible:

    items:

      - const: openrisc,ompic

  reg:

    maxItems: 1

  interrupt-controller: true

  '#interrupt-cells':

    const: 0

  interrupts:

    maxItems: 1

required:

  - compatible

  - reg

  - interrupt-controller

  - '#interrupt-cells'

  - interrupts

additionalProperties: false

examples:

  - |

    interrupt-controller@98000000 {

        compatible = "openrisc,ompic";

        reg = <0x98000000 16>;

        interrupt-controller;

        #interrupt-cells = <0>;

        interrupts = <1>;

    };