[alsa-devel] [PATCH 2/8] ASoC: mxs-pcm: Set SNDRV_PCM_INFO_HALF_DUPLEX

[Lars-Peter Clausen]

The MXS SAIF is only half-duplex so set the SNDRV_PCM_INFO_HALF_DUPLEX flag for
the PCM in order to prevent playback and capture from running at the same time.

Signed-off-by: Lars-Peter Clausen <lars at metafoo.de>
---
 sound/soc/mxs/mxs-pcm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/mxs/mxs-pcm.c b/sound/soc/mxs/mxs-pcm.c
index 7bceb16..907cdb1 100644
--- a/sound/soc/mxs/mxs-pcm.c
+++ b/sound/soc/mxs/mxs-pcm.c
@@ -43,7 +43,8 @@ static struct snd_pcm_hardware snd_mxs_hardware = {
 				  SNDRV_PCM_INFO_MMAP_VALID |
 				  SNDRV_PCM_INFO_PAUSE |
 				  SNDRV_PCM_INFO_RESUME |
-				  SNDRV_PCM_INFO_INTERLEAVED,
+				  SNDRV_PCM_INFO_INTERLEAVED |
+				  SNDRV_PCM_INFO_HALF_DUPLEX,
 	.formats		= SNDRV_PCM_FMTBIT_S16_LE |
 				  SNDRV_PCM_FMTBIT_S20_3LE |
 				  SNDRV_PCM_FMTBIT_S24_LE,
-- 
1.8.0