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authorBjorn Helgaas <bjorn.helgaas@hp.com>2010-03-11 12:20:06 -0700
committerLen Brown <len.brown@intel.com>2010-04-04 00:29:41 -0400
commit6ad95513d60096b569e4e4bd721420f03b57e4d4 (patch)
tree1029d5804adc51eb3f5c0aed56ef0fd00ae2042f /drivers/input/misc/winbond-cir.c
parent2eaa9cfdf33b8d7fb7aff27792192e0019ae8fc6 (diff)
ACPI: pci_root: save downstream bus range
Previously, we only saved the root bus number, i.e., the beginning of the downstream bus range. We now support IORESOURCE_BUS resources, so this patch uses that to keep track of both the beginning and the end of the downstream bus range. It's important to know both the beginning and the end for supporting _CBA (see PCI Firmware spec, rev 3.0, sec 4.1.3) and so we know the limits for any possible PCI bus renumbering (we can't renumber downstream buses to be outside the bus number range claimed by the host bridge). It's clear from the spec that the bus range is supposed to be in _CRS, but if we don't find it there, we'll assume [_BBN - 0xFF] or [0 - 0xFF]. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/input/misc/winbond-cir.c')
0 files changed, 0 insertions, 0 deletions