xref: /linux/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.yaml (revision 7fc2cd2e4b398c57c9cf961cfea05eadbf34c05c) 
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,a4-gpio-intc
39              - amlogic,a4-gpio-ao-intc
40              - amlogic,a5-gpio-intc
41              - amlogic,c3-gpio-intc
42              - amlogic,s6-gpio-intc
43              - amlogic,s7-gpio-intc
44              - amlogic,s7d-gpio-intc
45              - amlogic,t7-gpio-intc
46          - const: amlogic,meson-gpio-intc
47
48  reg:
49    maxItems: 1
50
51  interrupt-controller: true
52
53  "#interrupt-cells":
54    const: 2
55
56  amlogic,channel-interrupts:
57    description: Array with the upstream hwirq numbers
58    minItems: 2
59    maxItems: 12
60    $ref: /schemas/types.yaml#/definitions/uint32-array
61
62required:
63  - compatible
64  - reg
65  - interrupt-controller
66  - "#interrupt-cells"
67  - amlogic,channel-interrupts
68
69if:
70  properties:
71    compatible:
72      contains:
73        const: amlogic,a4-gpio-ao-intc
74then:
75  properties:
76    amlogic,channel-interrupts:
77      maxItems: 2
78else:
79  properties:
80    amlogic,channel-interrupts:
81      minItems: 8
82
83additionalProperties: false
84
85examples:
86  - |
87    interrupt-controller@9880 {
88      compatible = "amlogic,meson-gxbb-gpio-intc",
89                   "amlogic,meson-gpio-intc";
90      reg = <0x9880 0x10>;
91      interrupt-controller;
92      #interrupt-cells = <2>;
93      amlogic,channel-interrupts = <64 65 66 67 68 69 70 71>;
94    };
95