[alsa-devel] [PATCH] ASoC: Intel: add SNDRV_PCM_INFO_DRAIN_TRIGGER flag

[libin.yang at intel.com]

From: Libin Yang <libin.yang at intel.com>

Add SNDRV_PCM_INFO_DRAIN_TRIGGER in snd_pcm_hardware.info to
call sst_hsw_stream_set_silence_start() when PCM draining.

Signed-off-by: Libin Yang <libin.yang at intel.com>
---
 sound/soc/intel/sst-haswell-pcm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/intel/sst-haswell-pcm.c b/sound/soc/intel/sst-haswell-pcm.c
index d6fa9d5..7e21e8f 100644
--- a/sound/soc/intel/sst-haswell-pcm.c
+++ b/sound/soc/intel/sst-haswell-pcm.c
@@ -91,7 +91,8 @@ static const struct snd_pcm_hardware hsw_pcm_hardware = {
 				  SNDRV_PCM_INFO_INTERLEAVED |
 				  SNDRV_PCM_INFO_PAUSE |
 				  SNDRV_PCM_INFO_RESUME |
-				  SNDRV_PCM_INFO_NO_PERIOD_WAKEUP,
+				  SNDRV_PCM_INFO_NO_PERIOD_WAKEUP |
+				  SNDRV_PCM_INFO_DRAIN_TRIGGER,
 	.formats		= SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |
 				  SNDRV_PCM_FMTBIT_S32_LE,
 	.period_bytes_min	= PAGE_SIZE,
-- 
1.9.1