diff options
| author |   Richard Fitzgerald <rf@opensource.cirrus.com> | 2021-07-29 18:09:29 +0100 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2021-07-29 18:51:13 +0100 |
| commit | 926ef1a4c245c093acc07807e466ad2ef0ff6ccb (patch) | |
| tree | bb87d3e206d4add098d4270f2b2d486b7253818c /sound/soc/codecs/cs42l42.c | |
| parent | ASoC: cs42l42: Don't allow SND_SOC_DAIFMT_LEFT_J (diff) | |
| download | linux-dev-926ef1a4c245c093acc07807e466ad2ef0ff6ccb.tar.xz linux-dev-926ef1a4c245c093acc07807e466ad2ef0ff6ccb.zip | |
ASoC: cs42l42: Fix bclk calculation for mono
An I2S frame always has a left and right channel slot even if mono
data is being sent. So if channels==1 the actual bitclock frequency
is 2 * snd_soc_params_to_bclk(params).
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Fixes: 2cdba9b045c7 ("ASoC: cs42l42: Use bclk from hw_params if set_sysclk was not called")
Link: https://lore.kernel.org/r/20210729170929.6589-3-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/cs42l42.c')
| -rw-r--r-- | sound/soc/codecs/cs42l42.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c index 38e243a815b1..08ca05bfbeb3 100644 --- a/sound/soc/codecs/cs42l42.c +++ b/sound/soc/codecs/cs42l42.c @@ -830,6 +830,10 @@ static int cs42l42_pcm_hw_params(struct snd_pcm_substream *substream, cs42l42->srate = params_rate(params); cs42l42->bclk = snd_soc_params_to_bclk(params); + /* I2S frame always has 2 channels even for mono audio */ + if (channels == 1) + cs42l42->bclk *= 2; + switch(substream->stream) { case SNDRV_PCM_STREAM_CAPTURE: if (channels == 2) { |