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ASoC: tegra-wm8903: Document built-in microphone audio source

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The internal microphone source is needed in order to be able to describe
the hardware audio routing for devices that have the built-in microphone
in addition to the external Mic Jack.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20200320205504.30466-2-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Dmitry Osipenko 2020-03-20 23:55:03 +03:00 committed by Mark Brown
parent a30b59bffc
commit 7efa128e61
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Documentation/devicetree/bindings/sound/nvidia,tegra-audio-wm8903.txt
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@ -18,6 +18,7 @@ Required properties:
* Headphone Jack
* Int Spk
* Mic Jack
* Int Mic
- nvidia,i2s-controller : The phandle of the Tegra I2S1 controller
- nvidia,audio-codec : The phandle of the WM8903 audio codec