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86 lines
2.3 KiB
86 lines
2.3 KiB
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
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%YAML 1.2 |
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--- |
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$id: http://devicetree.org/schemas/soundwire/soundwire-controller.yaml# |
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$schema: http://devicetree.org/meta-schemas/core.yaml# |
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title: SoundWire Controller Generic Binding |
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maintainers: |
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- Srinivas Kandagatla <[email protected]> |
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- Vinod Koul <[email protected]> |
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description: | |
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SoundWire busses can be described with a node for the SoundWire controller |
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device and a set of child nodes for each SoundWire slave on the bus. |
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properties: |
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$nodename: |
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pattern: "^soundwire(@.*)?$" |
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"#address-cells": |
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const: 2 |
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"#size-cells": |
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const: 0 |
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patternProperties: |
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"^.*@[0-9a-f],[0-9a-f]$": |
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type: object |
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properties: |
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compatible: |
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pattern: "^sdw[0-9a-f]{1}[0-9a-f]{4}[0-9a-f]{4}[0-9a-f]{2}$" |
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description: Is the textual representation of SoundWire Enumeration |
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address. compatible string should contain SoundWire Version ID, |
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Manufacturer ID, Part ID and Class ID in order and shall be in |
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lower-case hexadecimal with leading zeroes. |
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Valid sizes of these fields are |
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Version ID is 1 nibble, number '0x1' represents SoundWire 1.0 |
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and '0x2' represents SoundWire 1.1 and so on. |
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MFD is 4 nibbles |
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PID is 4 nibbles |
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CID is 2 nibbles |
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More Information on detail of encoding of these fields can be |
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found in MIPI Alliance DisCo & SoundWire 1.0 Specifications. |
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reg: |
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maxItems: 1 |
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description: |
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Link ID followed by Instance ID of SoundWire Device Address. |
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required: |
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- compatible |
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- reg |
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required: |
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- "#address-cells" |
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- "#size-cells" |
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additionalProperties: true |
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examples: |
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- | |
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soundwire@c2d0000 { |
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#address-cells = <2>; |
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#size-cells = <0>; |
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reg = <0x0c2d0000 0x2000>; |
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speaker@0,1 { |
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compatible = "sdw10217201000"; |
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reg = <0 1>; |
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powerdown-gpios = <&wcdpinctrl 2 0>; |
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#thermal-sensor-cells = <0>; |
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#sound-dai-cells = <0>; |
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}; |
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speaker@0,2 { |
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compatible = "sdw10217201000"; |
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reg = <0 2>; |
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powerdown-gpios = <&wcdpinctrl 2 0>; |
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#thermal-sensor-cells = <0>; |
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#sound-dai-cells = <0>; |
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}; |
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}; |
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...
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