| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/soundwire/soundwire-controller.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: SoundWire Controller Common Properties |
| 8 | |
| 9 | maintainers: |
| 10 | - Srinivas Kandagatla <srinivas.kandagatla@linaro.org> |
| 11 | - Vinod Koul <vkoul@kernel.org> |
| 12 | |
| 13 | description: | |
| 14 | SoundWire busses can be described with a node for the SoundWire controller |
| 15 | device and a set of child nodes for each SoundWire slave on the bus. |
| 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]$": |
| 29 | type: object |
| 30 | |
| 31 | properties: |
| 32 | compatible: |
| 33 | pattern: "^sdw[0-9a-f]{1}[0-9a-f]{4}[0-9a-f]{4}[0-9a-f]{2}$" |
| 34 | description: Is the textual representation of SoundWire Enumeration |
| 35 | address. compatible string should contain SoundWire Version ID, |
| 36 | Manufacturer ID, Part ID and Class ID in order and shall be in |
| 37 | lower-case hexadecimal with leading zeroes. |
| 38 | Valid sizes of these fields are |
| 39 | Version ID is 1 nibble, number '0x1' represents SoundWire 1.0 |
| 40 | and '0x2' represents SoundWire 1.1 and so on. |
| 41 | MFD is 4 nibbles |
| 42 | PID is 4 nibbles |
| 43 | CID is 2 nibbles |
| 44 | More Information on detail of encoding of these fields can be |
| 45 | found in MIPI Alliance DisCo & SoundWire 1.0 Specifications. |
| 46 | |
| 47 | reg: |
| 48 | maxItems: 1 |
| 49 | description: |
| 50 | Link ID followed by Instance ID of SoundWire Device Address. |
| 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 | ... |