soundwire-controller.yaml

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    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 Generic Binding
    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 ...

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/soundwire/soundwire-controller.yaml

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sys/contrib/device-tree/Bindings/soundwire/soundwire-controller.yaml