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| author | Ricard Wanderlof <ricardw@axis.com> | 2022-02-10 20:07:36 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-02-10 22:48:57 +0300 |
| commit | 9193bc0558d1812343039b510797b669f054efc5 (patch) | |
| tree | 7138d793d1692876c2011115f6bf266000bee3b0 /.gitignore | |
| parent | 54f5bae0b75843c0ee6a3948e6b81698bfe69800 (diff) | |
| download | linux-9193bc0558d1812343039b510797b669f054efc5.tar.xz | |
ASoC: tlv320adc3xxx: Add IIR filter configuration
The TLV320ADC3001/3101 have an internal DSP, which can either be
used in various preset configurations (called "Processing Blocks"
in the data sheet), or as a freely programmable (using the
"PurePath Studio" graphical programming tool from TI) but rather
small DSP ("miniDSP").
Using the default configuration (PRB_R1) it's possible to set up
filtering using a first-order IIR, which can be useful for adding
a digital high pass filter to the signal chain, for instance.
This patch adds support for configuring the IIR filter coefficients.
The filter itself is always enabled; the default coefficients
implement a pass-through function.
Signed-off-by: Ricard Wanderlof <ricardw@axis.com>
Link: https://lore.kernel.org/r/alpine.DEB.2.21.2202101805360.7068@lnxricardw1.se.axis.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to '.gitignore')
0 files changed, 0 insertions, 0 deletions