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RT5660 audio CODEC

This device supports I2C only.

Required properties:

- compatible : "realtek,rt5660".

- reg : The I2C address of the device.

Optional properties:

- clocks: The phandle of the master clock to the CODEC
- clock-names: Should be "mclk"

- realtek,in1-differential
- realtek,in3-differential
  Boolean. Indicate MIC1/3 input are differential, rather than single-ended.

- realtek,poweroff-in-suspend
  Boolean. If the codec will be powered off in suspend, the resume should be
  added delay time for waiting codec power ready.

- realtek,dmic1-data-pin
  0: dmic1 is not used
  1: using GPIO2 pin as dmic1 data pin
  2: using IN1P pin as dmic1 data pin

Pins on the device (for linking into audio routes) for RT5660:

  * DMIC L1
  * DMIC R1
  * IN1P
  * IN1N
  * IN2P
  * IN3P
  * IN3N
  * SPO
  * LOUTL
  * LOUTR

Example:

rt5660 {
	compatible = "realtek,rt5660";
	reg = <0x1c>;
};