uaudio_iommu_unmap
uaudio_iommu_unmap(MEM_EVENT_RING, IOVA_BASE, PAGE_SIZE, PAGE_SIZE);
uaudio_iommu_unmap(MEM_XFER_RING,
uaudio_iommu_unmap(MEM_XFER_RING, IOVA_MASK(resp->xhci_mem_info.tr_data.iova),
uaudio_iommu_unmap(MEM_XFER_BUF, iova, size, total_len);
uaudio_iommu_unmap(MEM_XFER_BUF, iova, size, total_len);
uaudio_iommu_unmap(MEM_XFER_RING, info->data_xfer_ring_va,
uaudio_iommu_unmap(MEM_XFER_RING, info->sync_xfer_ring_va,
uaudio_iommu_unmap(MEM_XFER_BUF, info->xfer_buf_iova, info->xfer_buf_size,
uaudio_iommu_unmap(MEM_EVENT_RING, IOVA_BASE, PAGE_SIZE,