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sparc64: Properly claim resources as each PCI bus is probed.

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Perform a pci_claim_resource() on all valid resources discovered
during the OF device tree scan.

Based almost entirely upon the PCI OF bus probing code which does
the same thing there.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2014-08-12 23:29:09 -07:00
parent 4afba24e5f
commit f1d25d37d3
1 changed files with 32 additions and 0 deletions
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32
arch/sparc/kernel/pci.c
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@ -617,6 +617,36 @@ static void pci_bus_register_of_sysfs(struct pci_bus *bus)
pci_bus_register_of_sysfs(child_bus);
}
static void pci_claim_bus_resources(struct pci_bus *bus)
{
struct pci_bus *child_bus;
struct pci_dev *dev;
list_for_each_entry(dev, &bus->devices, bus_list) {
int i;
for (i = 0; i < PCI_NUM_RESOURCES; i++) {
struct resource *r = &dev->resource[i];
if (r->parent || !r->start || !r->flags)
continue;
if (ofpci_verbose)
printk("PCI: Claiming %s: "
"Resource %d: %016llx..%016llx [%x]\n",
pci_name(dev), i,
(unsigned long long)r->start,
(unsigned long long)r->end,
(unsigned int)r->flags);
pci_claim_resource(dev, i);
}
}
list_for_each_entry(child_bus, &bus->children, node)
pci_claim_bus_resources(child_bus);
}
struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm,
struct device *parent)
{
@ -647,6 +677,8 @@ struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm,
pci_bus_add_devices(bus);
pci_bus_register_of_sysfs(bus);
pci_claim_bus_resources(bus);
return bus;
}