mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-16 04:37:07 +07:00
PCI: xgene: Convert PCI scan API to pci_scan_root_bus_bridge()
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 xgene host code to pci_scan_root_bus_bridge() to improve the PCI root bus scanning interface. Tested-by: Khuong Dinh <kdinh@apm.com> # with e1000e Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Tanmay Inamdar <tinamdar@apm.com>
This commit is contained in:
parent
8c790a82ad
commit
9af275be15
@ -636,13 +636,16 @@ static int xgene_pcie_probe_bridge(struct platform_device *pdev)
|
||||
struct xgene_pcie_port *port;
|
||||
resource_size_t iobase = 0;
|
||||
struct pci_bus *bus, *child;
|
||||
struct pci_host_bridge *bridge;
|
||||
int ret;
|
||||
LIST_HEAD(res);
|
||||
|
||||
port = devm_kzalloc(dev, sizeof(*port), GFP_KERNEL);
|
||||
if (!port)
|
||||
bridge = devm_pci_alloc_host_bridge(dev, sizeof(*port));
|
||||
if (!bridge)
|
||||
return -ENOMEM;
|
||||
|
||||
port = pci_host_bridge_priv(bridge);
|
||||
|
||||
port->node = of_node_get(dn);
|
||||
port->dev = dev;
|
||||
|
||||
@ -670,11 +673,17 @@ static int xgene_pcie_probe_bridge(struct platform_device *pdev)
|
||||
if (ret)
|
||||
goto error;
|
||||
|
||||
bus = pci_create_root_bus(dev, 0, &xgene_pcie_ops, port, &res);
|
||||
if (!bus) {
|
||||
ret = -ENOMEM;
|
||||
list_splice_init(&res, &bridge->windows);
|
||||
bridge->dev.parent = dev;
|
||||
bridge->sysdata = port;
|
||||
bridge->busnr = 0;
|
||||
bridge->ops = &xgene_pcie_ops;
|
||||
|
||||
ret = pci_scan_root_bus_bridge(bridge);
|
||||
if (ret < 0)
|
||||
goto error;
|
||||
}
|
||||
|
||||
bus = bridge->bus;
|
||||
|
||||
pci_scan_child_bus(bus);
|
||||
pci_assign_unassigned_bus_resources(bus);
|
||||
|
Loading…
Reference in New Issue
Block a user