Re: yenta_socket: no PCI interrupts after resume if intel-agp loaded on HP 1105

[Matthew Garrett <mjg59@srcf.ucam.org>]

> If I have all of these drivers loaded at suspend, resume fails. Without
> intel-agp, I can suspend and resume happily (well, X won't start after
> resume, but that's potentially an entirely separate issue)

I've tracked this down some further. If I comment out these lines in
intel_845_configure:

        /* agpm */
        pci_read_config_byte(agp_bridge->dev, INTEL_I845_AGPM, &temp2);
        pci_write_config_byte(agp_bridge->dev, INTEL_I845_AGPM, temp2 |
(1 << 1));

then I can load intel-agp, suspend and resume and still get correct
interrupts. If I leave then uncommented, then attempting to load
yenta-socket after a suspend/resume with intel-agp loaded results in the
"no PCI interrupts. Fish" error. This is an i855PM device using nvidia
graphics. 

-- 
Matthew Garrett | mjg59@srcf.ucam.org

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