PCI: xilinx: Use pci_host_probe() to register host

The xilinx host driver does the same host registration and bus scanning
calls as pci_host_probe, so let's use it instead.

The only difference is pci_assign_unassigned_bus_resources() was called
instead of pci_bus_size_bridges() and pci_bus_assign_resources(). This
should be the same.

Link: https://lore.kernel.org/r/20200522234832.954484-16-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Michal Simek <michal.simek@xilinx.com>

diff --git a/drivers/pci/controller/pcie-xilinx.c b/drivers/pci/controller/pcie-xilinx.c
index 98e55297815b8981bab85467fcd6a571aef154c1..05547497f391dbfadc6232a35ff58795703238bc 100644 (file)
--- a/drivers/pci/controller/pcie-xilinx.c
+++ b/drivers/pci/controller/pcie-xilinx.c
@@ -616,7 +616,6 @@ static int xilinx_pcie_probe(struct platform_device *pdev)
 {
        struct device *dev = &pdev->dev;
        struct xilinx_pcie_port *port;
-       struct pci_bus *bus, *child;
        struct pci_host_bridge *bridge;
        int err;
 
@@ -663,17 +662,7 @@ static int xilinx_pcie_probe(struct platform_device *pdev)
        xilinx_pcie_msi_chip.dev = dev;
        bridge->msi = &xilinx_pcie_msi_chip;
 #endif
-       err = pci_scan_root_bus_bridge(bridge);
-       if (err < 0)
-               return err;
-
-       bus = bridge->bus;
-
-       pci_assign_unassigned_bus_resources(bus);
-       list_for_each_entry(child, &bus->children, node)
-               pcie_bus_configure_settings(child);
-       pci_bus_add_devices(bus);
-       return 0;
+       return pci_host_probe(bridge);
 }
 
 static const struct of_device_id xilinx_pcie_of_match[] = {