tegrakernel/kernel/kernel-4.9/Documentation/devicetree/bindings/sound/tas2552.txt

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Texas Instruments - tas2552 Codec module
The tas2552 serial control bus communicates through I2C protocols
Required properties:
- compatible - One of:
"ti,tas2552" - TAS2552
- reg - I2C slave address
- supply-*: Required supply regulators are:
"vbat" battery voltage
"iovdd" I/O Voltage
"avdd" Analog DAC Voltage
Optional properties:
- enable-gpio - gpio pin to enable/disable the device
tas2552 can receive it's reference clock via MCLK, BCLK, IVCLKIN pin or use the
internal 1.8MHz. This CLKIN is used by the PLL. In addition to PLL, the PDM
reference clock is also selectable: PLL, IVCLKIN, BCLK or MCLK.
For system integration the dt-bindings/sound/tas2552.h header file provides
defined values to selct and configure the PLL and PDM reference clocks.
Example:
tas2552: tas2552@41 {
compatible = "ti,tas2552";
reg = <0x41>;
enable-gpio = <&gpio4 2 GPIO_ACTIVE_HIGH>;
};
For more product information please see the link below:
http://www.ti.com/product/TAS2552