request_and_map
ret = request_and_map(pdev, "csr", &dma_res, &mdev->csr, false);
ret = request_and_map(pdev, "desc", &dma_res, &mdev->desc, false);
ret = request_and_map(pdev, "resp", &dma_res, &mdev->resp, true);
ret = request_and_map(pdev, "s1", &dma_res, &descmap);
ret = request_and_map(pdev, "rx_resp", &dma_res,
ret = request_and_map(pdev, "tx_desc", &dma_res,
ret = request_and_map(pdev, "rx_desc", &dma_res,
ret = request_and_map(pdev, "control_port", &control_port,
ret = request_and_map(pdev, "rx_csr", &dma_res,
ret = request_and_map(pdev, "tx_csr", &dma_res,
ret = request_and_map(pdev, "pcs", &pcs_res, &priv->pcs_base);