soc_pcm_prepare  2460 sound/soc/soc-pcm.c 		ret = soc_pcm_prepare(be_substream);
soc_pcm_prepare  2496 sound/soc/soc-pcm.c 	ret = soc_pcm_prepare(substream);
soc_pcm_prepare  2981 sound/soc/soc-pcm.c 		rtd->ops.prepare	= soc_pcm_prepare;