Documentation/devicetree/bindings/sound/imx-audio-es8328.txt

   1 Freescale i.MX audio complex with ES8328 codec
   2
   3 Required properties:
   4 - compatible       : "fsl,imx-audio-es8328"
   5 - model            : The user-visible name of this sound complex
   6 - ssi-controller   : The phandle of the i.MX SSI controller
   7 - jack-gpio        : Optional GPIO for headphone jack
   8 - audio-amp-supply : Power regulator for speaker amps
   9 - audio-codec      : The phandle of the ES8328 audio codec
  10 - audio-routing    : A list of the connections between audio components.
  11                      Each entry is a pair of strings, the first being the
  12                      connection's sink, the second being the connection's
  13                      source. Valid names could be power supplies, ES8328
  14                      pins, and the jacks on the board:
  15
  16                         Power supplies:
  17                            * audio-amp
  18
  19                         ES8328 pins:
  20                            * LOUT1
  21                            * LOUT2
  22                            * ROUT1
  23                            * ROUT2
  24                            * LINPUT1
  25                            * LINPUT2
  26                            * RINPUT1
  27                            * RINPUT2
  28                            * Mic PGA
  29
  30                         Board connectors:
  31                            * Headphone
  32                            * Speaker
  33                            * Mic Jack
  34 - mux-int-port     : The internal port of the i.MX audio muxer (AUDMUX)
  35 - mux-ext-port     : The external port of the i.MX audio muxer (AUDMIX)
  36
  37 Note: The AUDMUX port numbering should start at 1, which is consistent with
  38 hardware manual.
  39
  40 Example:
  41
  42 sound {
  43         compatible = "fsl,imx-audio-es8328";
  44         model = "imx-audio-es8328";
  45         ssi-controller = <&ssi1>;
  46         audio-codec = <&codec>;
  47         jack-gpio = <&gpio5 15 0>;
  48         audio-amp-supply = <&reg_audio_amp>;
  49         audio-routing =
  50                 "Speaker", "LOUT2",
  51                 "Speaker", "ROUT2",
  52                 "Speaker", "audio-amp",
  53                 "Headphone", "ROUT1",
  54                 "Headphone", "LOUT1",
  55                 "LINPUT1", "Mic Jack",
  56                 "RINPUT1", "Mic Jack",
  57                 "Mic Jack", "Mic Bias";
  58         mux-int-port = <1>;
  59         mux-ext-port = <3>;
  60 };