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 - 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 };