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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.
- gpio-controller : Indicates this device is a GPIO controller.
- #gpio-cells : Should be two. The first cell is the pin number and the
second cell is used to specify optional parameters (currently unused).
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) IRQ_TYPE_LEVEL_HIGH>;
gpio-controller;
#gpio-cells = <2>;
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 */
};
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