diff options
Diffstat (limited to 'Documentation/devicetree/bindings/sound/tas2552.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/tas2552.txt | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/sound/tas2552.txt b/Documentation/devicetree/bindings/sound/tas2552.txt index c49992c0b62a..2d71eb05c1d3 100644 --- a/Documentation/devicetree/bindings/sound/tas2552.txt +++ b/Documentation/devicetree/bindings/sound/tas2552.txt @@ -5,7 +5,8 @@ The tas2552 serial control bus communicates through I2C protocols Required properties: - compatible - One of: "ti,tas2552" - TAS2552 - - reg - I2C slave address + - reg - I2C slave address: it can be 0x40 if ADDR pin is 0 + or 0x41 if ADDR pin is 1. - supply-*: Required supply regulators are: "vbat" battery voltage "iovdd" I/O Voltage @@ -14,17 +15,20 @@ Required properties: 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 +tas2552 can receive its 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. +defined values to select and configure the PLL and PDM reference clocks. Example: tas2552: tas2552@41 { compatible = "ti,tas2552"; reg = <0x41>; + vbat-supply = <®_vbat>; + iovdd-supply = <®_iovdd>; + avdd-supply = <®_avdd>; enable-gpio = <&gpio4 2 GPIO_ACTIVE_HIGH>; }; |