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