ASoC: add bindings for stm32 DFSDM filter

Add bindings that describes audio settings to support
Digital Filter for pulse density modulation(PDM) microphone.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Arnaud Pouliquen 2018-01-10 11:13:14 +01:00 • committed by Mark Brown
commit a71615792d
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