On Saturday 05 May 2007, Alan Stern wrote:
> Agreed, these all sound like problems in the ACPI driver's implementation
> of suspend and resume. Problems that are caused (at least in part) by the
> fact that the PM core doesn't tell the driver whether it's doing
> suspend-to-RAM vs. hibernation. Once that is straighened out, everything
> else should become much simpler.
I'm not sure I agree with that diagnosis, but for the record:
updating drivers/pci/pci-acpi.c so that it can implement the
platform_pci_choose_state() hook requires ACPI to export that
information.
So for now I have drivers/acpi/sleep/main.c exporting
s_state = acpi_get_target_sleep_state();
so that ACPI-aware code can know to call "_S3D" instead of
the "_S1D" or "_S4D" methods (and "_S3W" etc). Of course
the $SUBJECT patch will finish borking that for S4. :(
- Dave
_______________________________________________
linux-pm mailing list
linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx
https://lists.linux-foundation.org/mailman/listinfo/linux-pm
