@@ -579,12 +579,14 @@ static int altera_pcie_probe(struct platform_device *pdev)
struct altera_pcie *pcie;
struct pci_bus *bus;
struct pci_bus *child;
+ struct pci_host_bridge *bridge;
int ret;
- pcie = devm_kzalloc(dev, sizeof(*pcie), GFP_KERNEL);
- if (!pcie)
+ bridge = devm_pci_alloc_host_bridge(dev, sizeof(*pcie));
+ if (!bridge)
return -ENOMEM;
+ pcie = pci_host_bridge_priv(bridge);
pcie->pdev = pdev;
ret = altera_pcie_parse_dt(pcie);
@@ -613,12 +615,20 @@ static int altera_pcie_probe(struct platform_device *pdev)
cra_writel(pcie, P2A_INT_ENA_ALL, P2A_INT_ENABLE);
altera_pcie_host_init(pcie);
- bus = pci_scan_root_bus(dev, pcie->root_bus_nr, &altera_pcie_ops,
- pcie, &pcie->resources);
- if (!bus)
- return -ENOMEM;
+ list_splice_init(&pcie->resources, &bridge->windows);
+ bridge->dev.parent = dev;
+ bridge->sysdata = pcie;
+ bridge->busnr = pcie->root_bus_nr;
+ bridge->ops = &altera_pcie_ops;
+
+ ret = pci_scan_root_bus_bridge(bridge);
+ if (ret < 0)
+ return ret;
+
+ bus = bridge->bus;
pci_fixup_irqs(pci_common_swizzle, of_irq_parse_and_map_pci);
+
pci_assign_unassigned_bus_resources(bus);
/* Configure PCI Express setting. */
The introduction of pci_scan_root_bus_bridge() provides a PCI core API to scan a PCI root bus backed by an already initialized struct pci_host_bridge object, which simplifies the bus scan interface and makes the PCI scan root bus interface easier to generalize as members are added to the struct pci_host_bridge. Convert PCI altera host code to pci_scan_root_bus_bridge() to improve the PCI root bus scanning interface. Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Ley Foon Tan <lftan@altera.com> --- drivers/pci/host/pcie-altera.c | 22 ++++++++++++++++------ 1 file changed, 16 insertions(+), 6 deletions(-)