max98090.txt

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    1 MAX98090 audio CODEC
    2 
    3 This device supports I2C only.
    4 
    5 Required properties:
    6 
    7 - compatible : "maxim,max98090" or "maxim,max98091".
    8 
    9 - reg : The I2C address of the device.
   10 
   11 - interrupts : The CODEC's interrupt output.
   12 
   13 Optional properties:
   14 
   15 - clocks: The phandle of the master clock to the CODEC
   16 
   17 - clock-names: Should be "mclk"
   18 
   19 - #sound-dai-cells : should be 0.
   20 
   21 - maxim,dmic-freq: Frequency at which to clock DMIC
   22 
   23 - maxim,micbias: Micbias voltage applies to the analog mic, valid voltages value are:
   24         0 - 2.2v
   25         1 - 2.55v
   26         2 - 2.4v
   27         3 - 2.8v
   28 
   29 Pins on the device (for linking into audio routes):
   30 
   31   * MIC1
   32   * MIC2
   33   * DMICL
   34   * DMICR
   35   * IN1
   36   * IN2
   37   * IN3
   38   * IN4
   39   * IN5
   40   * IN6
   41   * IN12
   42   * IN34
   43   * IN56
   44   * HPL
   45   * HPR
   46   * SPKL
   47   * SPKR
   48   * RCVL
   49   * RCVR
   50   * MICBIAS
   51 
   52 Example:
   53 
   54 audio-codec@10 {
   55         compatible = "maxim,max98090";
   56         reg = <0x10>;
   57         interrupt-parent = <&gpio>;
   58         interrupts = <TEGRA_GPIO(H, 4) IRQ_TYPE_LEVEL_HIGH>;
   59 };

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sys/contrib/device-tree/Bindings/sound/max98090.txt