PCI: xilinx: Request host bridge window resources

Request host bridge window resources so they appear in ioport_resource and
iomem_resource and are reflected in /proc/ioports and /proc/iomem.
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>

drivers/pci/host/pcie-xilinx.c

@@ -693,6 +693,11 @@ static int xilinx_pcie_probe(struct platform_device *pdev)
 		dev_err(dev, "Getting bridge resources failed\n");
 		return err;
 	}
+
+	err = devm_request_pci_bus_resources(dev, &res);
+	if (err)
+		goto error;
+
 	bus = pci_create_root_bus(&pdev->dev, 0,
 				  &xilinx_pcie_ops, port, &res);
 	if (!bus) {