From: Andrew Patterson <andrew.patterson@hp.com>
Date: Wed, 23 Jan 2008 00:18:27 +0000 (-0700)
Subject: PCI: Run ACPI _OSC method on root bridges only
X-Git-Tag: v2.6.25-rc1~1074^2~6
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3c75e23784e6ed5f4841de43d0750fd9b37bafcb;p=pandora-kernel.git

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>
---

Reading git-diff-tree failed