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
--- a/sound/soc/codecs/cs53l30.c
+++ b/sound/soc/codecs/cs53l30.c
@@ -592,8 +592,12 @@
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;