rt5677.txt

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    1 RT5677 audio CODEC
    2 
    3 This device supports I2C only.
    4 
    5 Required properties:
    6 
    7 - compatible : "realtek,rt5677".
    8 
    9 - reg : The I2C address of the device.
   10 
   11 - interrupts : The CODEC's interrupt output.
   12 
   13 - gpio-controller : Indicates this device is a GPIO controller.
   14 
   15 - #gpio-cells : Should be two. The first cell is the pin number and the
   16   second cell is used to specify optional parameters (currently unused).
   17 
   18 Optional properties:
   19 
   20 - realtek,pow-ldo2-gpio : The GPIO that controls the CODEC's POW_LDO2 pin.
   21 - realtek,reset-gpio : The GPIO that controls the CODEC's RESET pin. Active low.
   22 
   23 - realtek,in1-differential
   24 - realtek,in2-differential
   25 - realtek,lout1-differential
   26 - realtek,lout2-differential
   27 - realtek,lout3-differential
   28   Boolean. Indicate MIC1/2 input and LOUT1/2/3 outputs are differential,
   29   rather than single-ended.
   30 
   31 - realtek,gpio-config
   32   Array of six 8bit elements that configures GPIO.
   33     0 - floating (reset value)
   34     1 - pull down
   35     2 - pull up
   36 
   37 - realtek,jd1-gpio
   38   Configures GPIO Mic Jack detection 1.
   39   Select 0 ~ 3 as OFF, GPIO1, GPIO2 and GPIO3 respectively.
   40 
   41 - realtek,jd2-gpio
   42 - realtek,jd3-gpio
   43   Configures GPIO Mic Jack detection 2 and 3.
   44   Select 0 ~ 3 as OFF, GPIO4, GPIO5 and GPIO6 respectively.
   45 
   46 Pins on the device (for linking into audio routes):
   47 
   48   * IN1P
   49   * IN1N
   50   * IN2P
   51   * IN2N
   52   * MICBIAS1
   53   * DMIC1
   54   * DMIC2
   55   * DMIC3
   56   * DMIC4
   57   * LOUT1
   58   * LOUT2
   59   * LOUT3
   60 
   61 Example:
   62 
   63 rt5677 {
   64         compatible = "realtek,rt5677";
   65         reg = <0x2c>;
   66         interrupt-parent = <&gpio>;
   67         interrupts = <TEGRA_GPIO(W, 3) IRQ_TYPE_LEVEL_HIGH>;
   68 
   69         gpio-controller;
   70         #gpio-cells = <2>;
   71 
   72         realtek,pow-ldo2-gpio =
   73                 <&gpio TEGRA_GPIO(V, 3) GPIO_ACTIVE_HIGH>;
   74         realtek,reset-gpio = <&gpio TEGRA_GPIO(BB, 3) GPIO_ACTIVE_LOW>;
   75         realtek,in1-differential = "true";
   76         realtek,gpio-config = /bits/ 8  <0 0 0 0 0 2>;   /* pull up GPIO6 */
   77         realtek,jd2-gpio = <3>;  /* Enables Jack detection for GPIO6 */
   78 };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/sound/rt5677.txt

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/sound/rt5677.txt