ASoC: atmel: mchp-pdmc: add PDMC driver

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The Pulse Density Microphone Controller (PDMC) interfaces up to 4 digital
microphones having Pulse Density Modulated (PDM) outputs. It generates a
single clock line and samples 1 or 2 data lines. The signal path includes
an audio grade programmable decimation filter and outputs 24-bit audio
words on the APB bus.

Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Link: https://lore.kernel.org/r/20220307122202.2251639-4-codrin.ciubotariu@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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Codrin Ciubotariu 2022-03-07 14:21:59 +02:00 • committed by Mark Brown

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16

sound/soc/atmel/Kconfig

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2

sound/soc/atmel/Makefile

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1084

sound/soc/atmel/mchp-pdmc.c

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