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authorAndrew Patterson <andrew.patterson@hp.com>2008-01-22 17:18:27 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2008-02-01 15:04:30 -0800
commit3c75e23784e6ed5f4841de43d0750fd9b37bafcb (patch)
tree34c54566b3dfe8411464f49bdaec0cbcdd7170e9 /drivers/pci/quirks.c
parentd8634ddd371515740110d5658c3465a373894243 (diff)
PCI: Run ACPI _OSC method on root bridges only
According to the PCI Firmware Specification Revision 3.0 section 4.5, _OSC should only be called on a root brdige. Here is the relevant passage: "The _OSC interface defined in this section applies only to Host Bridge ACPI devices that originate PCI, PCI-X, or PCI Express hierarchies". Changed the code to find the parent root bridge of the device and call _OSC on that. Signed-off-by: Andrew Patterson <andrew.patterson@hp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/pci/quirks.c')
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