Kernel-3.10.0-957.el7_rt5677

RT5677 audio CODEC

This device supports I2C only.

Required properties:

• compatible : “realtek,rt5677”.

• reg : The I2C address of the device.

• interrupts : The CODEC’s interrupt output.

Optional properties:

• realtek,pow-ldo2-gpio : The GPIO that controls the CODEC’s POW_LDO2 pin.

• realtek,reset-gpio : The GPIO that controls the CODEC’s RESET pin. Active low.

• realtek,in1-differential

• realtek,in2-differential

• realtek,lout1-differential

• realtek,lout2-differential

• realtek,lout3-differential
  Boolean. Indicate MIC1/2 input and LOUT1/2/3 outputs are differential,
  rather than single-ended.

• realtek,gpio-config
  Array of six 8bit elements that configures GPIO.
  0 - floating (reset value)
  1 - pull down
  2 - pull up

• realtek,jd1-gpio
  Configures GPIO Mic Jack detection 1.
  Select 0 ~ 3 as OFF, GPIO1, GPIO2 and GPIO3 respectively.

• realtek,jd2-gpio

• realtek,jd3-gpio
  Configures GPIO Mic Jack detection 2 and 3.
  Select 0 ~ 3 as OFF, GPIO4, GPIO5 and GPIO6 respectively.

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

• IN1P
• IN1N
• IN2P
• IN2N
• MICBIAS1
• DMIC1
• DMIC2
• DMIC3
• DMIC4
• LOUT1
• LOUT2
• LOUT3

Example:

rt5677 {
compatible = “realtek,rt5677”;
reg = <0x2c>;
interrupt-parent = <&gpio>;
interrupts = <TEGRA_GPIO(W, 3) GPIO_ACTIVE_HIGH>;
realtek,pow-ldo2-gpio =
<&gpio TEGRA_GPIO(V, 3) GPIO_ACTIVE_HIGH>;
realtek,reset-gpio = <&gpio TEGRA_GPIO(BB, 3) GPIO_ACTIVE_LOW>;
realtek,in1-differential = “true”;
realtek,gpio-config = /bits/ 8 <0 0 0 0 0 2>; /* pull up GPIO6 /
realtek,jd2-gpio = <3>; / Enables Jack detection for GPIO6 */
};