ASoC: mxs-pcm: Set SNDRV_PCM_INFO_HALF_DUPLEX

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@metafoo.de>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/sound/soc/mxs/mxs-pcm.c b/sound/soc/mxs/mxs-pcm.c
index 7bceb16d0fd9..907cdb1f989d 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,