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ASoC: tas2552: Update DT binding document regarding clock configuration

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Add overview of tas2552's clock configuration and selection.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Peter Ujfalusi 2015-06-08 15:19:56 +03:00 committed by Mark Brown
parent b94525bfda
commit 21e397bd90
1 changed files with 6 additions and 0 deletions
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6
Documentation/devicetree/bindings/sound/tas2552.txt
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@ -14,6 +14,12 @@ Required properties:
Optional properties: Optional properties:
- enable-gpio - gpio pin to enable/disable the device - 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: Example:
tas2552: tas2552@41 { tas2552: tas2552@41 {