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ia64/PCI: register busn_res for root buses

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Add the host bridge bus number aperture from _CRS to the resource list.
Like the MMIO and I/O port apertures, this is used when assigning
resources to hot-added devices or in the case of conflicts.

[bhelgaas: changelog]
CC: Tony Luck <tony.luck@intel.com>
CC: Fenghua Yu <fenghua.yu@intel.com>
CC: linux-ia64@vger.kernel.org
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Yinghai Lu 2012-05-17 18:51:12 -07:00 committed by Bjorn Helgaas
parent a10bb128b6
commit 2661b819a1
1 changed files with 3 additions and 1 deletions
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4
arch/ia64/pci/pci.c
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@ -351,6 +351,8 @@ pci_acpi_scan_root(struct acpi_pci_root *root)
#endif
INIT_LIST_HEAD(&info.resources);
/* insert busn resource at first */
pci_add_resource(&info.resources, &root->secondary);
acpi_walk_resources(device->handle, METHOD_NAME__CRS, count_window,
&windows);
if (windows) {
@ -384,7 +386,7 @@ pci_acpi_scan_root(struct acpi_pci_root *root)
return NULL;
}
pbus->busn_res.end = pci_scan_child_bus(pbus);
pci_scan_child_bus(pbus);
return pbus;
out3: