ASoC: nau8825: add programmable biquad filter control
authorJohn Hsu <KCHSU0@nuvoton.com>
Tue, 31 May 2016 03:57:41 +0000 (11:57 +0800)
committerMark Brown <broonie@kernel.org>
Tue, 31 May 2016 17:38:59 +0000 (18:38 +0100)
commit18d8306d7e8bef79db87c3f9351eea6ae6bd3224
tree202495b841d971db0d3357ce1e047d3e7c75ca73
parentffd72505b08ff4538db6eca9a9a498fbb1bb3679
ASoC: nau8825: add programmable biquad filter control

Add programmable biquad filter configuration control for user space.
The filter is configurable for low pass filters, high pass filters,
Notch filter, etc in the ADC and DAC path.

Signed-off-by: John Hsu <KCHSU0@nuvoton.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
sound/soc/codecs/nau8825.c
sound/soc/codecs/nau8825.h