[PATCH v2 1/3] ASoC: Intel: avs: Unprepare a stream when XRUN occurs

[Cezary Rojewski <cezary.rojewski@intel.com>]

The pcm->prepare() function may be called multiple times in a row by the
userspace, as mentioned in the documentation. The driver shall take that
into account and prevent redundancy. However, the exact same function is
called during XRUNs and in such case, the particular stream shall be
reset and setup anew.

Fixes: 9114700b496c ("ASoC: Intel: avs: Generic PCM FE operations")
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
---
 sound/soc/intel/avs/pcm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/intel/avs/pcm.c b/sound/soc/intel/avs/pcm.c
index d31058e2de5b..501466bd1f7f 100644
--- a/sound/soc/intel/avs/pcm.c
+++ b/sound/soc/intel/avs/pcm.c
@@ -754,6 +754,8 @@ static int avs_dai_fe_prepare(struct snd_pcm_substream *substream, struct snd_so
 	data = snd_soc_dai_get_dma_data(dai, substream);
 	host_stream = data->host_stream;
 
+	if (runtime->state == SNDRV_PCM_STATE_XRUN)
+		hdac_stream(host_stream)->prepared = false;
 	if (hdac_stream(host_stream)->prepared)
 		return 0;
 
-- 
2.25.1