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ASoC: cs42l42: Fix LRCLK frame start edge 

An I2S frame starts on the falling edge of LRCLK so ASP_STP must
be 0.

At the same time, move other format settings in the same register
from cs42l42_pll_config() to cs42l42_set_dai_fmt() where you'd
expect to find them, and merge into a single write.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Fixes: 2c394ca796 ("ASoC: Add support for CS42L42 codec")
Link: https://lore.kernel.org/r/20210805161111.10410-2-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Richard Fitzgerald 2021-08-05 17:11:05 +01:00 committed by Mark Brown
parent f1040e86f8
commit 0c2f2ad4f1
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GPG Key ID: 24D68B725D5487D0
1 changed files with 12 additions and 9 deletions
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21
sound/soc/codecs/cs42l42.c
View File

@ -667,15 +667,6 @@ static int cs42l42_pll_config(struct snd_soc_component *component)
CS42L42_FSYNC_PULSE_WIDTH_MASK,
CS42L42_FRAC1_VAL(fsync - 1) <<
CS42L42_FSYNC_PULSE_WIDTH_SHIFT);
snd_soc_component_update_bits(component,
CS42L42_ASP_FRM_CFG,
CS42L42_ASP_5050_MASK,
CS42L42_ASP_5050_MASK);
/* Set the frame delay to 1.0 SCLK clocks */
snd_soc_component_update_bits(component, CS42L42_ASP_FRM_CFG,
CS42L42_ASP_FSD_MASK,
CS42L42_ASP_FSD_1_0 <<
CS42L42_ASP_FSD_SHIFT);
/* Set the sample rates (96k or lower) */
snd_soc_component_update_bits(component, CS42L42_FS_RATE_EN,
CS42L42_FS_EN_MASK,
@ -775,6 +766,18 @@ static int cs42l42_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
/* interface format */
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
/*
* 5050 mode, frame starts on falling edge of LRCLK,
* frame delayed by 1.0 SCLKs
*/
snd_soc_component_update_bits(component,
CS42L42_ASP_FRM_CFG,
CS42L42_ASP_STP_MASK |
CS42L42_ASP_5050_MASK |
CS42L42_ASP_FSD_MASK,
CS42L42_ASP_5050_MASK |
(CS42L42_ASP_FSD_1_0 <<
CS42L42_ASP_FSD_SHIFT));
break;
default:
return -EINVAL;