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| author | Daniel Mack <daniel@caiaq.de> | 2009-10-29 02:24:32 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2009-10-29 12:58:13 +0000 |
| commit | 7e1aa1dcd0d886df72586e3a94b1a7382952f21f (patch) | |
| tree | c258b4d736f2ecdcb68ce87f3b110594bdf6bd4c /sound/soc/codecs/cs4270.c | |
| parent | 26d95b6e300c4847be6ec8bfe817dbd531e94d9a (diff) | |
| download | lwn-7e1aa1dcd0d886df72586e3a94b1a7382952f21f.tar.gz lwn-7e1aa1dcd0d886df72586e3a94b1a7382952f21f.zip | |
ASoC: CS4270: export de-emphasis filter as ALSA control
The CS4270 codec features an de-emphasis filter for compensation of
audio material filtered by an 50/15 uS algorithm. Not sure whether we
should always enable it for 44100Hz sampling frequency, but it should at
least be configurable by the user.
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Acked-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/codecs/cs4270.c')
| -rw-r--r-- | sound/soc/codecs/cs4270.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/soc/codecs/cs4270.c b/sound/soc/codecs/cs4270.c index 59bb16d033d6..565842dcfc65 100644 --- a/sound/soc/codecs/cs4270.c +++ b/sound/soc/codecs/cs4270.c @@ -520,6 +520,7 @@ static const struct snd_kcontrol_new cs4270_snd_controls[] = { SOC_SINGLE("Digital Sidetone Switch", CS4270_FORMAT, 5, 1, 0), SOC_SINGLE("Soft Ramp Switch", CS4270_TRANS, 6, 1, 0), SOC_SINGLE("Zero Cross Switch", CS4270_TRANS, 5, 1, 0), + SOC_SINGLE("De-emphasis filter", CS4270_TRANS, 0, 1, 0), SOC_SINGLE("Popguard Switch", CS4270_MODE, 0, 1, 1), SOC_SINGLE("Auto-Mute Switch", CS4270_MUTE, 5, 1, 0), SOC_DOUBLE("Master Capture Switch", CS4270_MUTE, 3, 4, 1, 1), |