Documentation/devicetree/bindings/sound/qcom,sdm845.txt

   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 = dailinks
  28 Each subnode of sndcard represents either a dailink, and subnodes of each
  29 dailinks would be cpu/codec/platform dais.
  30
  31 - link-name:
  32         Usage: required
  33         Value type: <string>
  34         Definition: User friendly name for dai link
  35
  36 = CPU, PLATFORM, CODEC dais subnodes
  37 - cpu:
  38         Usage: required
  39         Value type: <subnode>
  40         Definition: cpu dai sub-node
  41
  42 - codec:
  43         Usage: required
  44         Value type: <subnode>
  45         Definition: codec dai sub-node
  46
  47 - platform:
  48         Usage: Optional
  49         Value type: <subnode>
  50         Definition: platform dai sub-node
  51
  52 - sound-dai:
  53         Usage: required
  54         Value type: <phandle>
  55         Definition: dai phandle/s and port of CPU/CODEC/PLATFORM node.
  56
  57 Example:
  58
  59 audio {
  60         compatible = "qcom,sdm845-sndcard";
  61         model = "sdm845-snd-card";
  62         pinctrl-names = "default", "sleep";
  63         pinctrl-0 = <&pri_mi2s_active &pri_mi2s_ws_active>;
  64         pinctrl-1 = <&pri_mi2s_sleep &pri_mi2s_ws_sleep>;
  65
  66         mm1-dai-link {
  67                 link-name = "MultiMedia1";
  68                 cpu {
  69                         sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA1>;
  70                 };
  71         };
  72
  73         pri-mi2s-dai-link {
  74                 link-name = "PRI MI2S Playback";
  75                 cpu {
  76                         sound-dai = <&q6afedai PRIMARY_MI2S_RX>;
  77                 };
  78
  79                 platform {
  80                         sound-dai = <&q6routing>;
  81                 };
  82         };
  83 };