1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: "http://devicetree.org/schemas/interrupt-controller/loongson,pch-pic.yaml#"
5$schema: "http://devicetree.org/meta-schemas/core.yaml#"
6
7title: Loongson PCH PIC Controller
8
9maintainers:
10  - Jiaxun Yang <jiaxun.yang@flygoat.com>
11
12description:
13  This interrupt controller is found in the Loongson LS7A family of PCH for
14  transforming interrupts from on-chip devices into HyperTransport vectorized
15  interrupts.
16
17properties:
18  compatible:
19    const: loongson,pch-pic-1.0
20
21  reg:
22    maxItems: 1
23
24  loongson,pic-base-vec:
25    description:
26      u32 value of the base of parent HyperTransport vector allocated
27      to PCH PIC.
28    allOf:
29      - $ref: "/schemas/types.yaml#/definitions/uint32"
30      - minimum: 0
31        maximum: 192
32
33  interrupt-controller: true
34
35  '#interrupt-cells':
36    const: 2
37
38required:
39  - compatible
40  - reg
41  - loongson,pic-base-vec
42  - interrupt-controller
43  - '#interrupt-cells'
44
45examples:
46  - |
47    #include <dt-bindings/interrupt-controller/irq.h>
48    pic: interrupt-controller@10000000 {
49      compatible = "loongson,pch-pic-1.0";
50      reg = <0x10000000 0x400>;
51      interrupt-controller;
52      #interrupt-cells = <2>;
53      loongson,pic-base-vec = <64>;
54      interrupt-parent = <&htvec>;
55    };
56...
57