Kernel-4.18.0-80.el8_max98090

MAX98090 audio CODEC

This device supports I2C only.

Required properties:

  • compatible : “maxim,max98090” or “maxim,max98091”.

  • reg : The I2C address of the device.

  • interrupts : The CODEC’s interrupt output.

Optional properties:

  • clocks: The phandle of the master clock to the CODEC

  • clock-names: Should be “mclk”

  • #sound-dai-cells : should be 0.

  • maxim,dmic-freq: Frequency at which to clock DMIC

  • maxim,micbias: Micbias voltage applies to the analog mic, valid voltages value are:
    0 - 2.2v
    1 - 2.55v
    2 - 2.4v
    3 - 2.8v

Pins on the device (for linking into audio routes):

  • MIC1
  • MIC2
  • DMICL
  • DMICR
  • IN1
  • IN2
  • IN3
  • IN4
  • IN5
  • IN6
  • IN12
  • IN34
  • IN56
  • HPL
  • HPR
  • SPKL
  • SPKR
  • RCVL
  • RCVR
  • MICBIAS

Example:

audio-codec@10 {
compatible = “maxim,max98090”;
reg = <0x10>;
interrupt-parent = <&gpio>;
interrupts = <TEGRA_GPIO(H, 4) GPIO_ACTIVE_HIGH>;
};