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| author | Richard Fitzgerald <rf@opensource.cirrus.com> | 2021-07-29 20:09:29 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-18 10:06:52 +0300 |
| commit | 67488f5c9613a1142b25d9365dc6f7ea9773150e (patch) | |
| tree | 4d1815339c8ae88de3abad30ee53ede8b6ee1a2e | |
| parent | b4f870447de18a2998284248d7b72e1c02c4c981 (diff) | |
| download | linux-67488f5c9613a1142b25d9365dc6f7ea9773150e.tar.xz | |
ASoC: cs42l42: Fix bclk calculation for mono
[ Upstream commit 926ef1a4c245c093acc07807e466ad2ef0ff6ccb ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -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 0d31c84b0445..fe73a5c70bdd 100644 --- a/sound/soc/codecs/cs42l42.c +++ b/sound/soc/codecs/cs42l42.c @@ -820,6 +820,10 @@ 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) { |