xref: /linux/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.yaml (revision be239684b18e1cdcafcf8c7face4a2f562c745ad) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/interrupt-controller/amlogic,meson-gpio-intc.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Amlogic Meson GPIO interrupt controller
8
9maintainers:
10  - Heiner Kallweit <hkallweit1@gmail.com>
11
12description: |
13  Meson SoCs contains an interrupt controller which is able to watch the SoC
14  pads and generate an interrupt on edge or level. The controller is essentially
15  a 256 pads to 8 or 12 GIC interrupt multiplexer, with a filter block to select
16  edge or level and polarity. It does not expose all 256 mux inputs because the
17  documentation shows that the upper part is not mapped to any pad. The actual
18  number of interrupts exposed depends on the SoC.
19
20allOf:
21  - $ref: /schemas/interrupt-controller.yaml#
22
23properties:
24  compatible:
25    oneOf:
26      - const: amlogic,meson-gpio-intc
27      - items:
28          - enum:
29              - amlogic,meson8-gpio-intc
30              - amlogic,meson8b-gpio-intc
31              - amlogic,meson-gxbb-gpio-intc
32              - amlogic,meson-gxl-gpio-intc
33              - amlogic,meson-axg-gpio-intc
34              - amlogic,meson-g12a-gpio-intc
35              - amlogic,meson-sm1-gpio-intc
36              - amlogic,meson-a1-gpio-intc
37              - amlogic,meson-s4-gpio-intc
38              - amlogic,c3-gpio-intc
39          - const: amlogic,meson-gpio-intc
40
41  reg:
42    maxItems: 1
43
44  interrupt-controller: true
45
46  "#interrupt-cells":
47    const: 2
48
49  amlogic,channel-interrupts:
50    description: Array with the upstream hwirq numbers
51    minItems: 8
52    maxItems: 12
53    $ref: /schemas/types.yaml#/definitions/uint32-array
54
55required:
56  - compatible
57  - reg
58  - interrupt-controller
59  - "#interrupt-cells"
60  - amlogic,channel-interrupts
61
62additionalProperties: false
63
64examples:
65  - |
66    interrupt-controller@9880 {
67      compatible = "amlogic,meson-gxbb-gpio-intc",
68                   "amlogic,meson-gpio-intc";
69      reg = <0x9880 0x10>;
70      interrupt-controller;
71      #interrupt-cells = <2>;
72      amlogic,channel-interrupts = <64 65 66 67 68 69 70 71>;
73    };
74