1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/i2c/allwinner,sun6i-a31-p2wi.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Allwinner A31 P2WI (Push/Pull 2 Wires Interface) Device Tree Bindings
8
9maintainers:
10  - Chen-Yu Tsai <wens@csie.org>
11  - Maxime Ripard <maxime.ripard@bootlin.com>
12
13allOf:
14  - $ref: /schemas/i2c/i2c-controller.yaml#
15
16properties:
17  compatible:
18    const: allwinner,sun6i-a31-p2wi
19
20  reg:
21    maxItems: 1
22
23  interrupts:
24    maxItems: 1
25
26  clocks:
27    maxItems: 1
28
29  resets:
30    maxItems: 1
31
32  clock-frequency:
33    minimum: 1
34    maximum: 6000000
35
36required:
37  - compatible
38  - reg
39  - interrupts
40  - clocks
41  - resets
42
43# FIXME: We should set it, but it would report all the generic
44# properties as additional properties.
45# additionalProperties: false
46
47examples:
48  - |
49    i2c@1f03400 {
50        compatible = "allwinner,sun6i-a31-p2wi";
51        reg = <0x01f03400 0x400>;
52        interrupts = <0 39 4>;
53        clocks = <&apb0_gates 3>;
54        clock-frequency = <100000>;
55        resets = <&apb0_rst 3>;
56        #address-cells = <1>;
57        #size-cells = <0>;
58
59        axp221: pmic@68 {
60            compatible = "x-powers,axp221";
61            reg = <0x68>;
62        };
63    };
64
65...
66