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| author | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2017-06-28 15:13:56 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2017-07-02 16:14:23 -0500 |
| commit | 6b6de6af324857c2190c309fd01c3de81cab1bbd (patch) | |
| tree | 414eb6ab9705730a66105e5b8f4c9fdfd5d4e692 /drivers/pci/host/pci-aardvark.c | |
| parent | 295aeb98a3220fe09c81fd4c8ad6e7884e05193d (diff) | |
| download | op-kernel-dev-6b6de6af324857c2190c309fd01c3de81cab1bbd.zip op-kernel-dev-6b6de6af324857c2190c309fd01c3de81cab1bbd.tar.gz | |
PCI: aardvark: 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 aardvark 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>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Diffstat (limited to 'drivers/pci/host/pci-aardvark.c')
| -rw-r--r-- | drivers/pci/host/pci-aardvark.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/pci/host/pci-aardvark.c b/drivers/pci/host/pci-aardvark.c index 37d0bcd..5fb9b62 100644 --- a/drivers/pci/host/pci-aardvark.c +++ b/drivers/pci/host/pci-aardvark.c @@ -886,12 +886,14 @@ static int advk_pcie_probe(struct platform_device *pdev) struct advk_pcie *pcie; struct resource *res; struct pci_bus *bus, *child; + struct pci_host_bridge *bridge; int ret, irq; - pcie = devm_kzalloc(dev, sizeof(struct advk_pcie), GFP_KERNEL); - if (!pcie) + bridge = devm_pci_alloc_host_bridge(dev, sizeof(struct advk_pcie)); + if (!bridge) return -ENOMEM; + pcie = pci_host_bridge_priv(bridge); pcie->pdev = pdev; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -929,14 +931,21 @@ static int advk_pcie_probe(struct platform_device *pdev) return ret; } - bus = pci_scan_root_bus(dev, 0, &advk_pcie_ops, - pcie, &pcie->resources); - if (!bus) { + list_splice_init(&pcie->resources, &bridge->windows); + bridge->dev.parent = dev; + bridge->sysdata = pcie; + bridge->busnr = 0; + bridge->ops = &advk_pcie_ops; + + ret = pci_scan_root_bus_bridge(bridge); + if (ret < 0) { advk_pcie_remove_msi_irq_domain(pcie); advk_pcie_remove_irq_domain(pcie); - return -ENOMEM; + return ret; } + bus = bridge->bus; + pci_bus_assign_resources(bus); list_for_each_entry(child, &bus->children, node) |
