ASoC: Intel: avs: Unprepare a stream when XRUN occurs

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: 9114700 ("ASoC: Intel: avs: Generic PCM FE operations")
Signed-off-by: Cezary Rojewski <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>

Author: crojewsk-intel

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;