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ARM: PCI: provide a default bus scan implementation

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Most PCI implementations perform simple root bus scanning.  Rather than
having each group of platforms provide a duplicated bus scan function,
provide the PCI configuration ops structure via the hw_pci structure,
and call the root bus scanning function from core ARM PCI code.

Acked-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
2012-03-10 12:49:16 +00:00
parent daeb4c0c3b
commit c23bfc3835
52 changed files with 61 additions and 135 deletions
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10
arch/arm/mach-cns3xxx/pcie.c
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@@ -166,12 +166,6 @@ static struct pci_ops cns3xxx_pcie_ops = {
.write = cns3xxx_pci_write_config,
};
static struct pci_bus *cns3xxx_pci_scan_bus(int nr, struct pci_sys_data *sys)
{
return pci_scan_root_bus(NULL, sys->busnr, &cns3xxx_pcie_ops, sys,
&sys->resources);
}
static int cns3xxx_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
struct cns3xxx_pcie *cnspci = pdev_to_cnspci(dev);
@@ -222,8 +216,8 @@ static struct cns3xxx_pcie cns3xxx_pcie[] = {
.hw_pci = {
.domain = 0,
.nr_controllers = 1,
.ops = &cns3xxx_pcie_ops,
.setup = cns3xxx_pci_setup,
.scan = cns3xxx_pci_scan_bus,
.map_irq = cns3xxx_pcie_map_irq,
},
},
@@ -264,8 +258,8 @@ static struct cns3xxx_pcie cns3xxx_pcie[] = {
.hw_pci = {
.domain = 1,
.nr_controllers = 1,
.ops = &cns3xxx_pcie_ops,
.setup = cns3xxx_pci_setup,
.scan = cns3xxx_pci_scan_bus,
.map_irq = cns3xxx_pcie_map_irq,
},
},