1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/gpio/adi,ds4520-gpio.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: DS4520 I2C GPIO expander
8
9 maintainers:
10 - Okan Sahin <okan.sahin@analog.com>
11
12 properties:
13 compatible:
14 enum:
15 - adi,ds4520-gpio
16
17 reg:
18 maxItems: 1
19
20 gpio-controller: true
21
22 "#gpio-cells":
23 const: 2
24
25 ngpios:
26 minimum: 1
27 maximum: 9
28
29 required:
30 - compatible
31 - reg
32 - gpio-controller
33 - "#gpio-cells"
34 - ngpios
35
36 additionalProperties: false
37
38 examples:
39 - |
40 i2c {
41 #address-cells = <1>;
42 #size-cells = <0>;
43
44 gpio@50 {
45 compatible = "adi,ds4520-gpio";
46 reg = <0x50>;
47 ngpios = <9>;
48 gpio-controller;
49 #gpio-cells = <2>;
50 };
51 };
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