xref: /kernel/linux/linux-5.10/Documentation/devicetree/bindings/interrupt-controller/loongson,htpic.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: "http://devicetree.org/schemas/interrupt-controller/loongson,htpic.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"

title: Loongson-3 HyperTransport Interrupt Controller

maintainers:
  - Jiaxun Yang <jiaxun.yang@flygoat.com>

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

description: |
  This interrupt controller is found in the Loongson-3 family of chips to transmit
  interrupts from PCH PIC connected on HyperTransport bus.

properties:
  compatible:
    const: loongson,htpic-1.0

  reg:
    maxItems: 1

  interrupts:
    minItems: 1
    maxItems: 4
    description: |
      Four parent interrupts that receive chained interrupts.

  interrupt-controller: true

  '#interrupt-cells':
    const: 1

required:
  - compatible
  - reg
  - interrupts
  - interrupt-controller
  - '#interrupt-cells'

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/irq.h>
    htintc: interrupt-controller@1fb000080 {
      compatible = "loongson,htintc-1.0";
      reg = <0xfb000080 0x40>;
      interrupt-controller;
      #interrupt-cells = <1>;

      interrupt-parent = <&liointc>;
      interrupts = <24 IRQ_TYPE_LEVEL_HIGH>,
                    <25 IRQ_TYPE_LEVEL_HIGH>,
                    <26 IRQ_TYPE_LEVEL_HIGH>,
                    <27 IRQ_TYPE_LEVEL_HIGH>;
    };
...