static int iwl_pcie_load_firmware_chunk(struct iwl_trans *trans,
					u32 dst_addr, dma_addr_t phy_addr,
					u32 byte_cnt)
{
	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
	unsigned long flags;
	int ret;

	trans_pcie->ucode_write_complete = false;

	if (!iwl_trans_grab_nic_access(trans, &flags))
		return -EIO;

	iwl_pcie_load_firmware_chunk_fh(trans, dst_addr, phy_addr,
					byte_cnt);
	iwl_trans_release_nic_access(trans, &flags);

	ret = wait_event_timeout(trans_pcie->ucode_write_waitq,
				 trans_pcie->ucode_write_complete, 5 * HZ);
	if (!ret) {
		IWL_ERR(trans, "Failed to load firmware chunk!\n");
		iwl_trans_pcie_dump_regs(trans);
		return -ETIMEDOUT;
	}

	return 0;
}