1 # SPDX-License-Identifier: (GPL-2.0-only OR BS
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/soundwire/s
5 $schema: http://devicetree.org/meta-schemas/co
6
7 title: SoundWire Controller Common Properties
8
9 maintainers:
10 - Srinivas Kandagatla <srinivas.kandagatla@li
11 - Vinod Koul <vkoul@kernel.org>
12
13 description: |
14 SoundWire busses can be described with a nod
15 device and a set of child nodes for each Sou
16
17 properties:
18 $nodename:
19 pattern: "^soundwire(@.*)?$"
20
21 "#address-cells":
22 const: 2
23
24 "#size-cells":
25 const: 0
26
27 patternProperties:
28 "^.*@[0-9a-f],[0-9a-f]$":
29 type: object
30
31 properties:
32 compatible:
33 pattern: "^sdw[0-9a-f]{1}[0-9a-f]{4}[0
34 description: Is the textual representa
35 address. compatible string should co
36 Manufacturer ID, Part ID and Class I
37 lower-case hexadecimal with leading
38 Valid sizes of these fields are
39 Version ID is 1 nibble, number '0x1'
40 and '0x2' represents SoundWire 1.1 a
41 MFD is 4 nibbles
42 PID is 4 nibbles
43 CID is 2 nibbles
44 More Information on detail of encodi
45 found in MIPI Alliance DisCo & Sound
46
47 reg:
48 maxItems: 1
49 description:
50 Link ID followed by Instance ID of S
51
52 required:
53 - compatible
54 - reg
55
56 required:
57 - "#address-cells"
58 - "#size-cells"
59
60 additionalProperties: true
61
62 examples:
63 - |
64 soundwire@c2d0000 {
65 #address-cells = <2>;
66 #size-cells = <0>;
67 reg = <0x0c2d0000 0x2000>;
68
69 speaker@0,1 {
70 compatible = "sdw10217201000";
71 reg = <0 1>;
72 powerdown-gpios = <&wcdpinctrl 2 0
73 #thermal-sensor-cells = <0>;
74 #sound-dai-cells = <0>;
75 };
76
77 speaker@0,2 {
78 compatible = "sdw10217201000";
79 reg = <0 2>;
80 powerdown-gpios = <&wcdpinctrl 2 0
81 #thermal-sensor-cells = <0>;
82 #sound-dai-cells = <0>;
83 };
84 };
85
86 ...
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