Merge tag 'tpm-fixes-for-4.2-rc2' of https://github.com/PeterHuewe/linux-tpmdd into...
[sfrench/cifs-2.6.git] / Documentation / devicetree / bindings / sound / tas2552.txt
1 Texas Instruments - tas2552 Codec module
2
3 The tas2552 serial control bus communicates through I2C protocols
4
5 Required properties:
6         - compatible - One of:
7                 "ti,tas2552" - TAS2552
8         - reg -  I2C slave address
9         - supply-*: Required supply regulators are:
10                 "vbat"          battery voltage
11                 "iovdd"         I/O Voltage
12                 "avdd"          Analog DAC Voltage
13
14 Optional properties:
15         - enable-gpio - gpio pin to enable/disable the device
16
17 tas2552 can receive it's reference clock via MCLK, BCLK, IVCLKIN pin or use the
18 internal 1.8MHz. This CLKIN is used by the PLL. In addition to PLL, the PDM
19 reference clock is also selectable: PLL, IVCLKIN, BCLK or MCLK.
20 For system integration the dt-bindings/sound/tas2552.h header file provides
21 defined values to selct and configure the PLL and PDM reference clocks.
22
23 Example:
24
25 tas2552: tas2552@41 {
26         compatible = "ti,tas2552";
27         reg = <0x41>;
28         enable-gpio = <&gpio4 2 GPIO_ACTIVE_HIGH>;
29 };
30
31 For more product information please see the link below:
32 http://www.ti.com/product/TAS2552