Expose a control for the setting of 'DC blocker' highpass filter in the
playback path of TAS2764.
Signed-off-by: Martin Povišer <povik+lin@cutebit.org>
Link: https://lore.kernel.org/r/20220825140241.53963-6-povik+lin@cutebit.orgSigned-off-by: Mark Brown <broonie@kernel.org>