]> err.no Git - linux-2.6/commit
[PATCH] PCI: Clear abnormal poweroff flag on VIA southbridges, fix resume
authorMatthew Garrett <mjg59@srcf.ucam.org>
Fri, 30 Jun 2006 09:31:25 +0000 (02:31 -0700)
committerGreg Kroah-Hartman <gregkh@suse.de>
Wed, 12 Jul 2006 23:05:48 +0000 (16:05 -0700)
commit709cf5ea7a8bea1b956d361ee7cef1945423200c
treec610d474abc12eaf241ab6d2f6950260371d1669
parent6e2338992c5a7d0711ce09f1d1b79a1a27d37bca
[PATCH] PCI: Clear abnormal poweroff flag on VIA southbridges, fix resume

Some VIA southbridges contain a flag in the ACPI register space that
indicates whether an abnormal poweroff has occured, presumably with the
intention that it can be cleared on clean shutdown.  Some BIOSes check this
flag at resume time, and will re-POST the system rather than jump back to
the OS if it's set.  Clearing it at boot time appears to be sufficient.
I'm not sure if drivers/pci/quirks.c is the right place to do it, but I'm
not sure where would be cleaner.

[akpm@osdl.org: cleanups, build fix]
Signed-off-by: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Greg KH <greg@kroah.com>
Cc: "Brown, Len" <len.brown@intel.com>
Cc: "Yu, Luming" <luming.yu@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/pci/quirks.c