Unverified Commit 926ef1a4 authored by Richard Fitzgerald's avatar Richard Fitzgerald Committed by Mark Brown
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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: default avatarRichard Fitzgerald <rf@opensource.cirrus.com>
Fixes: 2cdba9b0 ("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: default avatarMark Brown <broonie@kernel.org>
parent 64324bac

sound/soc/codecs/cs42l42.c

+4 −0
Original line number Diff line number Diff line
@@ -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) {