On Sunday, February 06, 2011, Matthew Garrett wrote:
> On Sun, Feb 06, 2011 at 09:35:07PM +0100, Rafael J. Wysocki wrote:
> > > + acpi_get_parent(device->dev->handle, &acpi_parent);
> > > +
> > > + pdev = acpi_get_pci_dev(acpi_parent);
> > > + if (pdev) {
> > > + parent = &pdev->dev;
> > > + pci_dev_put(pdev);
> > > + }
> >
> > I'm afraid you can't do that or suspend problems will happen.
>
> Ugh. Ok, how can we fix this?
Not nicely, I'm afraid.
One possible way is to use device_pm_move_after() to rearrange the devices in
the PM core's suspend list, but that will happen in the video device being
suspended before the new parent (and resumed after it) -- of course, the only
option is to move the ACPI video device after the new parent.
Thanks,
Rafael
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