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 "qcom,sdm845-sndcard"
   9
  10 - audio-routing:
  11         Usage: Optional
  12         Value type: <stringlist>
  13         Definition:  A list of the connections between audio components.
  14                   Each entry is a pair of strings, the first being the
  15                   connection's sink, the second being the connection's
  16                   source. Valid names could be power supplies, MicBias
  17                   of codec and the jacks on the board.
  18
  19 - model:
  20         Usage: required
  21         Value type: <stringlist>
  22         Definition: The user-visible name of this sound card.
  23
  24 = dailinks
  25 Each subnode of sndcard represents either a dailink, and subnodes of each
  26 dailinks would be cpu/codec/platform dais.
  27
  28 - link-name:
  29         Usage: required
  30         Value type: <string>
  31         Definition: User friendly name for dai link
  32
  33 = CPU, PLATFORM, CODEC dais subnodes
  34 - cpu:
  35         Usage: required
  36         Value type: <subnode>
  37         Definition: cpu dai sub-node
  38
  39 - codec:
  40         Usage: required
  41         Value type: <subnode>
  42         Definition: codec dai sub-node
  43
  44 - platform:
  45         Usage: Optional
  46         Value type: <subnode>
  47         Definition: platform dai sub-node
  48
  49 - sound-dai:
  50         Usage: required
  51         Value type: <phandle>
  52         Definition: dai phandle/s and port of CPU/CODEC/PLATFORM node.
  53
  54 Example:
  55
  56 audio {
  57         compatible = "qcom,sdm845-sndcard";
  58         model = "sdm845-snd-card";
  59         pinctrl-names = "default", "sleep";
  60         pinctrl-0 = <&pri_mi2s_active &pri_mi2s_ws_active>;
  61         pinctrl-1 = <&pri_mi2s_sleep &pri_mi2s_ws_sleep>;
  62
  63         mm1-dai-link {
  64                 link-name = "MultiMedia1";
  65                 cpu {
  66                         sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA1>;
  67                 };
  68         };
  69
  70         pri-mi2s-dai-link {
  71                 link-name = "PRI MI2S Playback";
  72                 cpu {
  73                         sound-dai = <&q6afedai PRIMARY_MI2S_RX>;
  74                 };
  75
  76                 platform {
  77                         sound-dai = <&q6routing>;
  78                 };
  79         };
  80 };