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>

diff --git a/sound/soc/codecs/cs53l30.c b/sound/soc/codecs/cs53l30.c
index fd5502e..2c0d9c4 100644 (file)
--- a/sound/soc/codecs/cs53l30.c
+++ b/sound/soc/codecs/cs53l30.c
@@ -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;