Documentation/devicetree/bindings/sound/rt5659.txt

   1 RT5659/RT5658 audio CODEC
   2
   3 This device supports I2C only.
   4
   5 Required properties:
   6
   7 - compatible : One of "realtek,rt5659" or "realtek,rt5658".
   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,in3-differential
  17 - realtek,in4-differential
  18   Boolean. Indicate MIC1/3/4 input are differential, rather than single-ended.
  19
  20 - realtek,dmic1-data-pin
  21   0: dmic1 is not used
  22   1: using IN2N pin as dmic1 data pin
  23   2: using GPIO5 pin as dmic1 data pin
  24   3: using GPIO9 pin as dmic1 data pin
  25   4: using GPIO11 pin as dmic1 data pin
  26
  27 - realtek,dmic2-data-pin
  28   0: dmic2 is not used
  29   1: using IN2P pin as dmic2 data pin
  30   2: using GPIO6 pin as dmic2 data pin
  31   3: using GPIO10 pin as dmic2 data pin
  32   4: using GPIO12 pin as dmic2 data pin
  33
  34 - realtek,jd-src
  35   0: No JD is used
  36   1: using JD3 as JD source
  37
  38 - realtek,ldo1-en-gpios : The GPIO that controls the CODEC's LDO1_EN pin.
  39 - realtek,reset-gpios : The GPIO that controls the CODEC's RESET pin.
  40
  41 Pins on the device (for linking into audio routes) for RT5659/RT5658:
  42
  43   * DMIC L1
  44   * DMIC R1
  45   * DMIC L2
  46   * DMIC R2
  47   * IN1P
  48   * IN1N
  49   * IN2P
  50   * IN2N
  51   * IN3P
  52   * IN3N
  53   * IN4P
  54   * IN4N
  55   * HPOL
  56   * HPOR
  57   * SPOL
  58   * SPOR
  59   * LOUTL
  60   * LOUTR
  61   * MONOOUT
  62   * PDML
  63   * PDMR
  64   * SPDIF
  65
  66 Example:
  67
  68 rt5659 {
  69         compatible = "realtek,rt5659";
  70         reg = <0x1b>;
  71         interrupt-parent = <&gpio>;
  72         interrupts = <TEGRA_GPIO(W, 3) GPIO_ACTIVE_HIGH>;
  73         realtek,ldo1-en-gpios =
  74                 <&gpio TEGRA_GPIO(V, 3) GPIO_ACTIVE_HIGH>;
  75 };