PCI: altera: Use pci_host_probe() to register host

The altera 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/20200522234832.954484-11-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: rfi@lists.rocketboards.org

diff --git a/drivers/pci/controller/pcie-altera.c b/drivers/pci/controller/pcie-altera.c
index 24cb1c331058473579d66954e0eb016054c447e0..26ac3ad81de00f90573221065baedbe6b97266c4 100644 (file)
--- a/drivers/pci/controller/pcie-altera.c
+++ b/drivers/pci/controller/pcie-altera.c
@@ -773,8 +773,6 @@ static int altera_pcie_probe(struct platform_device *pdev)
 {
        struct device *dev = &pdev->dev;
        struct altera_pcie *pcie;
-       struct pci_bus *bus;
-       struct pci_bus *child;
        struct pci_host_bridge *bridge;
        int ret;
        const struct of_device_id *match;
@@ -825,20 +823,7 @@ static int altera_pcie_probe(struct platform_device *pdev)
        bridge->map_irq = of_irq_parse_and_map_pci;
        bridge->swizzle_irq = pci_common_swizzle;
 
-       ret = pci_scan_root_bus_bridge(bridge);
-       if (ret < 0)
-               return ret;
-
-       bus = bridge->bus;
-
-       pci_assign_unassigned_bus_resources(bus);
-
-       /* Configure PCI Express setting. */
-       list_for_each_entry(child, &bus->children, node)
-               pcie_bus_configure_settings(child);
-
-       pci_bus_add_devices(bus);
-       return ret;
+       return pci_host_probe(bridge);
 }
 
 static int altera_pcie_remove(struct platform_device *pdev)