staticintrockchip_pcm_hw_free(struct snd_pcm_substream *substream){structrockchip_runtime_data*prtd=substream->runtime->private_data;DBG("Enter::%s---%d\n",__FUNCTION__,__LINE__);/* TODO - do we need to ensure DMA flushed */snd_pcm_set_runtime_buffer(substream,NULL);if(prtd-...