X-Gene PCIE driver currently depends on Liviu Dudau's patch https://lkml.org/lkml/2014/9/30/166 in order to assign resource to root bus and endpoint devices. The patch was dropped because it will break x86, powerpc and probably others. So X-Gene PCIE host functionality is currently broken. This patch adds function calls to create and scan root_bus as well as assign unassigned bus resource (similar to Liviu Dudau's patch above). This will help resolve the dependency to Liviu Dudau's patch and make X-Gene PCIE work in latest open-source kernel. Signed-off-by: Duc Dang <dhdang@xxxxxxx> Signed-off-by: Tanmay Inamdar <tinamdar@xxxxxxx> --- drivers/pci/host/pci-xgene.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/pci/host/pci-xgene.c b/drivers/pci/host/pci-xgene.c index 9ecabfa..2988fe1 100644 --- a/drivers/pci/host/pci-xgene.c +++ b/drivers/pci/host/pci-xgene.c @@ -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; } -- 1.8.2.1 -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
