Re: PCI PM: Fix pci_prepare_to_sleep

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On Sunday, July 13, 2008 1:45 pm Rafael J. Wysocki wrote:
> Hi Jesse,
>
> The recently introduced pci_prepare_to_sleep() needs the following fix,
> because there are systems which are not power manageable by ACPI (ie. ACPI
> doesn't provide methods to put the device into low power states and back),
> but require ACPI hooks to be executed for wake-up to work.
>
> Please apply.
>
> Thanks,
> Rafael
>
> ---
> From: Rafael J. Wysocki <rjw@xxxxxxx>
>
> Fix pci_prepare_to_sleep() to work on systems that are not power
> manageable by ACPI (ie. ACPI doesn't provide methods to put the
> device into low power states and back into the full power state), but
> require ACPI hooks to be executed for wake-up to work.
>
> Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx>

Based on what you've told me so far about the number of ACPI vs. native wakeup 
methods & problems, I'm starting to get a little worried that making this 
stuff work right will require lots of platform specific quirks.  I guess 
that's just par for the course though, and this patch looks fine, so I just 
applied it to my linux-next branch.

Thanks,
Jesse
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