Documentation/devicetree/bindings/sound/da7213.txt

   1 Dialog Semiconductor DA7213 Audio Codec bindings
   2
   3 ======
   4
   5 Required properties:
   6 - compatible : Should be "dlg,da7213"
   7 - reg: Specifies the I2C slave address
   8
   9 Optional properties:
  10 - clocks : phandle and clock specifier for codec MCLK.
  11 - clock-names : Clock name string for 'clocks' attribute, should be "mclk".
  12
  13 - dlg,micbias1-lvl : Voltage (mV) for Mic Bias 1
  14         [<1600>, <2200>, <2500>, <3000>]
  15 - dlg,micbias2-lvl : Voltage (mV) for Mic Bias 2
  16         [<1600>, <2200>, <2500>, <3000>]
  17 - dlg,dmic-data-sel : DMIC channel select based on clock edge.
  18         ["lrise_rfall", "lfall_rrise"]
  19 - dlg,dmic-samplephase : When to sample audio from DMIC.
  20         ["on_clkedge", "between_clkedge"]
  21 - dlg,dmic-clkrate : DMIC clock frequency (Hz).
  22         [<1500000>, <3000000>]
  23
  24 ======
  25
  26 Example:
  27
  28         codec_i2c: da7213@1a {
  29                 compatible = "dlg,da7213";
  30                 reg = <0x1a>;
  31
  32                 clocks = <&clks 201>;
  33                 clock-names = "mclk";
  34
  35                 dlg,micbias1-lvl = <2500>;
  36                 dlg,micbias2-lvl = <2500>;
  37
  38                 dlg,dmic-data-sel = "lrise_rfall";
  39                 dlg,dmic-samplephase = "between_clkedge";
  40                 dlg,dmic-clkrate = <3000000>;
  41         };