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ASoC: cs53l30: Fix bit shift issue of TDM mode 

The TDM mode using PCM format now has two-bit right shift due to the
format configuration in the driver. According to Figure 4-13 in the
CS53L30 datasheet, using ASP_SCLK_INV = 0 and SHIFT_LEFT = 1 should
be the correct combination to create one-bit right shift for the DSP
type A format.

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Nicolin Chen 2016-07-19 15:36:14 -07:00 committed by Mark Brown
parent 622019373c
commit 1708796fc1
1 changed files with 6 additions and 2 deletions
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8
sound/soc/codecs/cs53l30.c
View File

@ -592,8 +592,12 @@ static int cs53l30_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
aspctl1 |= CS53L30_ASP_TDM_PDN;
break;
case SND_SOC_DAIFMT_DSP_A:
/* Clear TDM_PDN and SHIFT_LEFT, invert SCLK */
aspcfg |= CS53L30_ASP_SCLK_INV;
/*
* Clear TDM_PDN to turn on TDM mode; Use ASP_SCLK_INV = 0
* with SHIFT_LEFT = 1 combination as Figure 4-13 shows in
* the CS53L30 datasheet
*/
aspctl1 |= CS53L30_SHIFT_LEFT;
break;
default:
return -EINVAL;