Commit 1708796f authored Jul 19, 2016 by Nicolin Chen Committed by Mark Brown Jul 21, 2016

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>

parent 62201937

sound/soc/codecs/cs53l30.c

+6 −2

Original line number	Diff line number	Diff line
		@@ -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;