1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/soundwire/s 4 $id: http://devicetree.org/schemas/soundwire/soundwire-controller.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: SoundWire Controller Common Properties 7 title: SoundWire Controller Common Properties
8 8
9 maintainers: 9 maintainers:
10 - Srinivas Kandagatla <srinivas.kandagatla@li 10 - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
11 - Vinod Koul <vkoul@kernel.org> 11 - Vinod Koul <vkoul@kernel.org>
12 12
13 description: | 13 description: |
14 SoundWire busses can be described with a nod 14 SoundWire busses can be described with a node for the SoundWire controller
15 device and a set of child nodes for each Sou 15 device and a set of child nodes for each SoundWire slave on the bus.
16 16
17 properties: 17 properties:
18 $nodename: 18 $nodename:
19 pattern: "^soundwire(@.*)?$" 19 pattern: "^soundwire(@.*)?$"
20 20
21 "#address-cells": 21 "#address-cells":
22 const: 2 22 const: 2
23 23
24 "#size-cells": 24 "#size-cells":
25 const: 0 25 const: 0
26 26
27 patternProperties: 27 patternProperties:
28 "^.*@[0-9a-f],[0-9a-f]$": 28 "^.*@[0-9a-f],[0-9a-f]$":
29 type: object 29 type: object
30 30
31 properties: 31 properties:
32 compatible: 32 compatible:
33 pattern: "^sdw[0-9a-f]{1}[0-9a-f]{4}[0 33 pattern: "^sdw[0-9a-f]{1}[0-9a-f]{4}[0-9a-f]{4}[0-9a-f]{2}$"
34 description: Is the textual representa 34 description: Is the textual representation of SoundWire Enumeration
35 address. compatible string should co 35 address. compatible string should contain SoundWire Version ID,
36 Manufacturer ID, Part ID and Class I 36 Manufacturer ID, Part ID and Class ID in order and shall be in
37 lower-case hexadecimal with leading 37 lower-case hexadecimal with leading zeroes.
38 Valid sizes of these fields are 38 Valid sizes of these fields are
39 Version ID is 1 nibble, number '0x1' 39 Version ID is 1 nibble, number '0x1' represents SoundWire 1.0
40 and '0x2' represents SoundWire 1.1 a 40 and '0x2' represents SoundWire 1.1 and so on.
41 MFD is 4 nibbles 41 MFD is 4 nibbles
42 PID is 4 nibbles 42 PID is 4 nibbles
43 CID is 2 nibbles 43 CID is 2 nibbles
44 More Information on detail of encodi 44 More Information on detail of encoding of these fields can be
45 found in MIPI Alliance DisCo & Sound 45 found in MIPI Alliance DisCo & SoundWire 1.0 Specifications.
46 46
47 reg: 47 reg:
48 maxItems: 1 48 maxItems: 1
49 description: 49 description:
50 Link ID followed by Instance ID of S 50 Link ID followed by Instance ID of SoundWire Device Address.
51 51
52 required: 52 required:
53 - compatible 53 - compatible
54 - reg 54 - reg
55 55
56 required: 56 required:
57 - "#address-cells" 57 - "#address-cells"
58 - "#size-cells" 58 - "#size-cells"
59 59
60 additionalProperties: true 60 additionalProperties: true
61 61
62 examples: 62 examples:
63 - | 63 - |
64 soundwire@c2d0000 { 64 soundwire@c2d0000 {
65 #address-cells = <2>; 65 #address-cells = <2>;
66 #size-cells = <0>; 66 #size-cells = <0>;
67 reg = <0x0c2d0000 0x2000>; 67 reg = <0x0c2d0000 0x2000>;
68 68
69 speaker@0,1 { 69 speaker@0,1 {
70 compatible = "sdw10217201000"; 70 compatible = "sdw10217201000";
71 reg = <0 1>; 71 reg = <0 1>;
72 powerdown-gpios = <&wcdpinctrl 2 0 72 powerdown-gpios = <&wcdpinctrl 2 0>;
73 #thermal-sensor-cells = <0>; 73 #thermal-sensor-cells = <0>;
74 #sound-dai-cells = <0>; 74 #sound-dai-cells = <0>;
75 }; 75 };
76 76
77 speaker@0,2 { 77 speaker@0,2 {
78 compatible = "sdw10217201000"; 78 compatible = "sdw10217201000";
79 reg = <0 2>; 79 reg = <0 2>;
80 powerdown-gpios = <&wcdpinctrl 2 0 80 powerdown-gpios = <&wcdpinctrl 2 0>;
81 #thermal-sensor-cells = <0>; 81 #thermal-sensor-cells = <0>;
82 #sound-dai-cells = <0>; 82 #sound-dai-cells = <0>;
83 }; 83 };
84 }; 84 };
85 85
86 ... 86 ...
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