dt-bindings: interrupt-controller: Convert opencores,or1k-pic to DT schema

OpenRISC 1000 Programmable Interrupt Controller

Required properties:

- compatible : should be "opencores,or1k-pic-level" for variants with

  level triggered interrupt lines, "opencores,or1k-pic-edge" for variants with

  edge triggered interrupt lines or "opencores,or1200-pic" for machines

  with the non-spec compliant or1200 type implementation.

  "opencores,or1k-pic" is also provided as an alias to "opencores,or1200-pic",

  but this is only for backwards compatibility.

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

- #interrupt-cells : Specifies the number of cells needed to encode an

  interrupt source. The value shall be 1.

Example:

intc: interrupt-controller {

	compatible = "opencores,or1k-pic-level";

	interrupt-controller;

	#interrupt-cells = <1>;

};

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/interrupt-controller/opencores,or1k-pic.yaml#

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

title: OpenRISC 1000 Programmable Interrupt Controller

maintainers:

  - Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>

properties:

  compatible:

    enum:

      - opencores,or1k-pic-level

      - opencores,or1k-pic-edge

      - opencores,or1200-pic

      - opencores,or1k-pic

  interrupt-controller: true

  '#interrupt-cells':

    const: 1

required:

  - compatible

  - interrupt-controller

  - '#interrupt-cells'

additionalProperties: false

examples:

  - |

    interrupt-controller {

        compatible = "opencores,or1k-pic-level";

        interrupt-controller;

        #interrupt-cells = <1>;

    };