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PCI: xgene: Assign resources to bus before adding new devices

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The X-Gene PCIe driver assumes pci_scan_root_bus() assigns resources as
proposed in [1].  But we dropped patch [1] because it would break some
architectures, which means the X-Gene PCIe driver is currently broken.

Add calls to scan the bus, assign resources, and add devices in the X-Gene
driver to fix this.

[bhelgaas: changelog]
[1] http://lkml.kernel.org/r/1412000971-9242-11-git-send-email-Liviu.Dudau@arm.com
Signed-off-by: Duc Dang <dhdang@apm.com>
Signed-off-by: Tanmay Inamdar <tinamdar@apm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Duc Dang 2014-11-06 17:14:18 -08:00 committed by Bjorn Helgaas
parent 32f638fc11
commit 336b5be2c5
1 changed files with 6 additions and 1 deletions
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7
drivers/pci/host/pci-xgene.c
View File

@ -631,10 +631,15 @@ static int xgene_pcie_probe_bridge(struct platform_device *pdev)
if (ret)
return ret;
bus = pci_scan_root_bus(&pdev->dev, 0, &xgene_pcie_ops, port, &res);
bus = pci_create_root_bus(&pdev->dev, 0,
&xgene_pcie_ops, port, &res);
if (!bus)
return -ENOMEM;
pci_scan_child_bus(bus);
pci_assign_unassigned_bus_resources(bus);
pci_bus_add_devices(bus);
platform_set_drvdata(pdev, port);
return 0;
}