qcom,sdm845.txt

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    1 * Qualcomm Technologies Inc. SDM845 ASoC sound card driver
    2 
    3 This binding describes the SDM845 sound card, which uses qdsp for audio.
    4 
    5 - compatible:
    6         Usage: required
    7         Value type: <stringlist>
    8         Definition: must be one of this
    9                         "qcom,sdm845-sndcard"
   10                         "qcom,db845c-sndcard"
   11                         "lenovo,yoga-c630-sndcard"
   12 
   13 - audio-routing:
   14         Usage: Optional
   15         Value type: <stringlist>
   16         Definition:  A list of the connections between audio components.
   17                   Each entry is a pair of strings, the first being the
   18                   connection's sink, the second being the connection's
   19                   source. Valid names could be power supplies, MicBias
   20                   of codec and the jacks on the board.
   21 
   22 - model:
   23         Usage: required
   24         Value type: <stringlist>
   25         Definition: The user-visible name of this sound card.
   26 
   27 - aux-devs
   28         Usage: optional
   29         Value type: <array of phandles>
   30         Definition: A list of phandles for auxiliary devices (e.g. analog
   31                     amplifiers) that do not appear directly within the DAI
   32                     links. Should be connected to another audio component
   33                     using "audio-routing".
   34 
   35 = dailinks
   36 Each subnode of sndcard represents either a dailink, and subnodes of each
   37 dailinks would be cpu/codec/platform dais.
   38 
   39 - link-name:
   40         Usage: required
   41         Value type: <string>
   42         Definition: User friendly name for dai link
   43 
   44 = CPU, PLATFORM, CODEC dais subnodes
   45 - cpu:
   46         Usage: required
   47         Value type: <subnode>
   48         Definition: cpu dai sub-node
   49 
   50 - codec:
   51         Usage: required
   52         Value type: <subnode>
   53         Definition: codec dai sub-node
   54 
   55 - platform:
   56         Usage: Optional
   57         Value type: <subnode>
   58         Definition: platform dai sub-node
   59 
   60 - sound-dai:
   61         Usage: required
   62         Value type: <phandle>
   63         Definition: dai phandle/s and port of CPU/CODEC/PLATFORM node.
   64 
   65 Example:
   66 
   67 audio {
   68         compatible = "qcom,sdm845-sndcard";
   69         model = "sdm845-snd-card";
   70         pinctrl-names = "default", "sleep";
   71         pinctrl-0 = <&pri_mi2s_active &pri_mi2s_ws_active>;
   72         pinctrl-1 = <&pri_mi2s_sleep &pri_mi2s_ws_sleep>;
   73 
   74         mm1-dai-link {
   75                 link-name = "MultiMedia1";
   76                 cpu {
   77                         sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA1>;
   78                 };
   79         };
   80 
   81         pri-mi2s-dai-link {
   82                 link-name = "PRI MI2S Playback";
   83                 cpu {
   84                         sound-dai = <&q6afedai PRIMARY_MI2S_RX>;
   85                 };
   86 
   87                 platform {
   88                         sound-dai = <&q6routing>;
   89                 };
   90         };
   91 };

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