Documentation/devicetree/bindings/sound/rt5640.txt

   1 RT5640/RT5639 audio CODEC
   2
   3 This device supports I2C only.
   4
   5 Required properties:
   6
   7 - compatible : One of "realtek,rt5640" or "realtek,rt5639".
   8
   9 - reg : The I2C address of the device.
  10
  11 - interrupts : The CODEC's interrupt output.
  12
  13 Optional properties:
  14
  15 - realtek,in1-differential
  16 - realtek,in2-differential
  17   Boolean. Indicate MIC1/2 input are differential, rather than single-ended.
  18
  19 - realtek,ldo1-en-gpios : The GPIO that controls the CODEC's LDO1_EN pin.
  20
  21 Pins on the device (for linking into audio routes) for RT5639/RT5640:
  22
  23   * DMIC1
  24   * DMIC2
  25   * MICBIAS1
  26   * IN1P
  27   * IN1R
  28   * IN2P
  29   * IN2R
  30   * HPOL
  31   * HPOR
  32   * LOUTL
  33   * LOUTR
  34   * SPOLP
  35   * SPOLN
  36   * SPORP
  37   * SPORN
  38
  39 Additional pins on the device for RT5640:
  40
  41   * MONOP
  42   * MONON
  43
  44 Example:
  45
  46 rt5640 {
  47         compatible = "realtek,rt5640";
  48         reg = <0x1c>;
  49         interrupt-parent = <&gpio>;
  50         interrupts = <TEGRA_GPIO(W, 3) GPIO_ACTIVE_HIGH>;
  51         realtek,ldo1-en-gpios =
  52                 <&gpio TEGRA_GPIO(V, 3) GPIO_ACTIVE_HIGH>;
  53 };