[alsa-devel] [PATCH 2/7] ASoC: stm32: i2s: fix 16 bit format support

Olivier Moysan olivier.moysan at st.com
Tue Feb 26 14:51:05 CET 2019


I2S supports 16 bits data in 32 channel length.
However the expected driver behavior, is to
set channel length to 16 bits when data format is 16 bits.

Signed-off-by: Olivier Moysan <olivier.moysan at st.com>
---
 sound/soc/stm/stm32_i2s.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/stm/stm32_i2s.c b/sound/soc/stm/stm32_i2s.c
index 339cd4715b2e..7d4c67433916 100644
--- a/sound/soc/stm/stm32_i2s.c
+++ b/sound/soc/stm/stm32_i2s.c
@@ -501,7 +501,7 @@ static int stm32_i2s_configure(struct snd_soc_dai *cpu_dai,
 	switch (format) {
 	case 16:
 		cfgr = I2S_CGFR_DATLEN_SET(I2S_I2SMOD_DATLEN_16);
-		cfgr_mask = I2S_CGFR_DATLEN_MASK;
+		cfgr_mask = I2S_CGFR_DATLEN_MASK | I2S_CGFR_CHLEN;
 		break;
 	case 32:
 		cfgr = I2S_CGFR_DATLEN_SET(I2S_I2SMOD_DATLEN_32) |
-- 
2.7.4



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