From: Peter Ujfalusi Date: Mon, 8 Jun 2015 12:19:56 +0000 (+0300) Subject: ASoC: tas2552: Update DT binding document regarding clock configuration X-Git-Tag: v4.2-rc1~109^2~2^2~2^2~1 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=21e397bd90c303ea9fe18a1f63ddfa67c48f7150;p=karo-tx-linux.git ASoC: tas2552: Update DT binding document regarding clock configuration Add overview of tas2552's clock configuration and selection. Signed-off-by: Peter Ujfalusi Signed-off-by: Mark Brown --- 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 {