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SubjectRe: [PATCH v5 2/4] fpga pr ip: Core driver support for Altera Partial Reconfiguration IP.
Hi Matthew,

On Fri, 10 Mar 2017 11:40:25 -0800
matthew.gerlach@linux.intel.com matthew.gerlach@linux.intel.com wrote:
...
>+int alt_pr_unregister(struct device *dev)
>+{
>+ dev_dbg(dev, "%s\n", __func__);
>+
>+ fpga_mgr_unregister(dev);
>+
>+ return 0;
>+}
>+EXPORT_SYMBOL_GPL(alt_pr_unregister);

Can we also add a function for registering a PCIe device with
PR IP here? Something like:

/**
* alt_pr_pcie_register - register PCIe device with PR-IP core
* @pci_dev: PCI device with PR-IP
* @bar: PR-IP BAR number
* @pr_offset: offset of the PR-IP core registers
*
* Return: 0 on success, negative error code otherwise.
*
* To unregister the PCIe device, use alt_pr_unregister(&pdev->dev).
*/
int alt_pr_pcie_register(struct pci_dev *pdev, int bar, int pr_offset)
{
void __iomem *base;
int ret;

if (!pci_is_enabled(pdev)) {
ret = pci_enable_device(pdev);
if (ret < 0) {
dev_err(&pdev->dev, "can't enable device: %d\n", ret);
return ret;
}
}

base = devm_ioremap_resource(&pdev->dev, &pdev->resource[bar]);
if (IS_ERR(base)) {
dev_warn(&pdev->dev, "mapping PR-IP BAR failed\n");
return -ENOMEM;
}

return alt_pr_register(&pdev->dev, base + pr_offset);
}
EXPORT_SYMBOL_GPL(alt_pr_pcie_register);

Thanks,
Anatolij

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