xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/sound/tas2552.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593SmuzhiyunTexas Instruments - tas2552 Codec module
2*4882a593Smuzhiyun
3*4882a593SmuzhiyunThe tas2552 serial control bus communicates through I2C protocols
4*4882a593Smuzhiyun
5*4882a593SmuzhiyunRequired properties:
6*4882a593Smuzhiyun	- compatible - One of:
7*4882a593Smuzhiyun		"ti,tas2552" - TAS2552
8*4882a593Smuzhiyun	- reg -  I2C slave address: it can be 0x40 if ADDR pin is 0
9*4882a593Smuzhiyun				    or 0x41 if ADDR pin is 1.
10*4882a593Smuzhiyun	- supply-*: Required supply regulators are:
11*4882a593Smuzhiyun		"vbat"		battery voltage
12*4882a593Smuzhiyun		"iovdd"		I/O Voltage
13*4882a593Smuzhiyun		"avdd"		Analog DAC Voltage
14*4882a593Smuzhiyun
15*4882a593SmuzhiyunOptional properties:
16*4882a593Smuzhiyun	- enable-gpio - gpio pin to enable/disable the device
17*4882a593Smuzhiyun
18*4882a593Smuzhiyuntas2552 can receive its reference clock via MCLK, BCLK, IVCLKIN pin or use the
19*4882a593Smuzhiyuninternal 1.8MHz. This CLKIN is used by the PLL. In addition to PLL, the PDM
20*4882a593Smuzhiyunreference clock is also selectable: PLL, IVCLKIN, BCLK or MCLK.
21*4882a593SmuzhiyunFor system integration the dt-bindings/sound/tas2552.h header file provides
22*4882a593Smuzhiyundefined values to select and configure the PLL and PDM reference clocks.
23*4882a593Smuzhiyun
24*4882a593SmuzhiyunExample:
25*4882a593Smuzhiyun
26*4882a593Smuzhiyuntas2552: tas2552@41 {
27*4882a593Smuzhiyun	compatible = "ti,tas2552";
28*4882a593Smuzhiyun	reg = <0x41>;
29*4882a593Smuzhiyun	vbat-supply = <&reg_vbat>;
30*4882a593Smuzhiyun	iovdd-supply = <&reg_iovdd>;
31*4882a593Smuzhiyun	avdd-supply = <&reg_avdd>;
32*4882a593Smuzhiyun	enable-gpio = <&gpio4 2 GPIO_ACTIVE_HIGH>;
33*4882a593Smuzhiyun};
34*4882a593Smuzhiyun
35*4882a593SmuzhiyunFor more product information please see the link below:
36*4882a593Smuzhiyunhttps://www.ti.com/product/TAS2552
37