dma_info.width = prtd->params->dma_size;
dma_info.fifo = prtd->params->dma_addr;
prtd->params->ch = prtd->params->ops->request(
dma_info.width = prtd->params->dma_size;
dma_info.fifo = prtd->params->dma_addr;
prtd->params->ch = prtd->params->ops->request(