ASoC: fsl_asrc: Add ASRC ASoC CPU DAI and platform drivers
authorNicolin Chen <nicoleotsuka@gmail.com>
Tue, 29 Jul 2014 10:08:53 +0000 (18:08 +0800)
committerMark Brown <broonie@linaro.org>
Tue, 29 Jul 2014 18:22:49 +0000 (19:22 +0100)
commit3117bb3109dc223e186302f5dc8ce9ed04adca90
tree35f65b00d2361c37d158f31a8ae1707975aaf1cc
parent94b912e42829b25d97b6b1f2be66c6aa81ac125f
ASoC: fsl_asrc: Add ASRC ASoC CPU DAI and platform drivers

The Asynchronous Sample Rate Converter (ASRC) converts the sampling rate of a
signal associated with an input clock into a signal associated with a different
output clock. The driver currently works as a Front End of DPCM with other Back
Ends DAI links such as ESAI<->CS42888 and SSI<->WM8962 and SAI. It converts the
original sample rate to a common rate supported by Back Ends for playback while
converts the common rate of Back Ends to a desired rate for capture. It has 3
pairs to support three different substreams within totally 10 channels.

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Reviewed-by: Varka Bhadram <varkabhadram@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Documentation/devicetree/bindings/sound/fsl,asrc.txt [new file with mode: 0644]
sound/soc/fsl/Kconfig
sound/soc/fsl/Makefile
sound/soc/fsl/fsl_asrc.c [new file with mode: 0644]
sound/soc/fsl/fsl_asrc.h [new file with mode: 0644]
sound/soc/fsl/fsl_asrc_dma.c [new file with mode: 0644]