dt-bindings: interrupt-controller: convert loongson,ls1x-intc.txt to json-schema

Loongson ls1x Interrupt Controller

Required properties:

- compatible : should be "loongson,ls1x-intc". Valid strings are:

- reg : Specifies base physical address and size of the registers.

- 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 2.

- interrupts : Specifies the CPU interrupt the controller is connected to.

Example:

intc: interrupt-controller@1fd01040 {

	compatible = "loongson,ls1x-intc";

	reg = <0x1fd01040 0x18>;

	interrupt-controller;

	#interrupt-cells = <2>;

	interrupt-parent = <&cpu_intc>;

	interrupts = <2>;

};

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/interrupt-controller/loongson,ls1x-intc.yaml#

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

title: Loongson-1 Interrupt Controller

maintainers:

  - Keguang Zhang <keguang.zhang@gmail.com>

description:

  Loongson-1 interrupt controller is connected to the MIPS core interrupt

  controller, which controls several groups of interrupts.

properties:

  compatible:

    const: loongson,ls1x-intc

  reg:

    maxItems: 1

  interrupt-controller: true

  '#interrupt-cells':

    const: 2

  interrupts:

    maxItems: 1

required:

  - compatible

  - reg

  - interrupt-controller

  - '#interrupt-cells'

  - interrupts

additionalProperties: false

examples:

  - |

    intc0: interrupt-controller@1fd01040 {

        compatible = "loongson,ls1x-intc";

        reg = <0x1fd01040 0x18>;

        interrupt-controller;

        #interrupt-cells = <2>;

        interrupt-parent = <&cpu_intc>;

        interrupts = <2>;

    };