Add overview of tas2552's clock configuration and selection.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@ti.com --- Documentation/devicetree/bindings/sound/tas2552.txt | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/sound/tas2552.txt b/Documentation/devicetree/bindings/sound/tas2552.txt index 55e2a0af5645..c49992c0b62a 100644 --- a/Documentation/devicetree/bindings/sound/tas2552.txt +++ b/Documentation/devicetree/bindings/sound/tas2552.txt @@ -14,6 +14,12 @@ 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 +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 {