[APPLIED] Re: [Maverick] SRU: enable PCIEXP wakeup by clearing PCIEXP_WAKE_STS on resume

[Leann Ogasawara]

This appears to be making it's way into upstream stable [1].  Applied to
Maverick linux master as "pre-stable".

Thanks,
Leann

[1] http://lkml.org/lkml/2010/10/1/117

On Wed, 2010-10-06 at 13:22 +0100, Colin King wrote:
> From: Colin Ian King <colin.king at canonical.com>
> 
> SRU Justification:
> 
> Impact: It has been observed on a AMD K325 netbook that resumes hang in the 
> BIOS if PCI Express ethernet is enabled on the 2nd or 3rd resume. Disabling 
> the ethernet has shown that the resume works flawlessly. This has been tracked 
> down to the fact that a PCI Express Wake event has occurred and the kernel 
> is not clearing the PM1 PCIEXP_WAKE_STS bit when coming out of resume.
> 
> Fix: Clearing PCIEXP_WAKE_STS on resume fixes the resume hang. 
> 
> Testcase: Without the patch, resume hangs in the BIOS after 2nd or 3rd resume.
> With the patch, resume works flawlessly everytime.
> 
> Patch is from upstream commit 573b638158029898caf9470c8214b7ddd29751e3
> 
> BugLink: http://bugs.launchpad.net/bugs/613381
> 
> Colin Ian King (1):
>   ACPI: enable repeated PCIEXP wakeup by clearing PCIEXP_WAKE_STS on
>     resume
> 
>  drivers/acpi/acpica/aclocal.h |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
> 
>