xref: /linux/Documentation/devicetree/bindings/gpio/airoha,en7523-gpio.yaml (revision da1d9caf95def6f0320819cf941c9fd1069ba9e1) 
1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/gpio/airoha,en7523-gpio.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Airoha EN7523 GPIO controller
8
9maintainers:
10  - John Crispin <john@phrozen.org>
11
12description: |
13  Airoha's GPIO controller on their ARM EN7523 SoCs consists of two banks of 32
14  GPIOs.
15
16properties:
17  $nodename:
18    pattern: "^gpio@[0-9a-f]+$"
19
20  compatible:
21    items:
22      - const: airoha,en7523-gpio
23
24  reg:
25    description: |
26      The first tuple points to the input register.
27      The second and third tuple point to the direction registers
28      The fourth tuple points to the output register
29    maxItems: 4
30
31  "#gpio-cells":
32    const: 2
33
34  gpio-controller: true
35
36required:
37  - compatible
38  - reg
39  - "#gpio-cells"
40  - gpio-controller
41
42additionalProperties: false
43
44examples:
45  - |
46    gpio0: gpio@1fbf0200 {
47        compatible = "airoha,en7523-gpio";
48        reg = <0x1fbf0204 0x4>,
49              <0x1fbf0200 0x4>,
50              <0x1fbf0220 0x4>,
51              <0x1fbf0214 0x4>;
52        gpio-controller;
53        #gpio-cells = <2>;
54    };
55
56    gpio1: gpio@1fbf0270 {
57        compatible = "airoha,en7523-gpio";
58        reg = <0x1fbf0270 0x4>,
59              <0x1fbf0260 0x4>,
60              <0x1fbf0264 0x4>,
61              <0x1fbf0278 0x4>;
62        gpio-controller;
63        #gpio-cells = <2>;
64    };
65
66...
67