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SubjectRe: [PATCH V3] VIA IRQ quirk behaviour change
Greg KH wrote:
> On Sun, Sep 10, 2006 at 01:31:12AM +0100, Alan Cox wrote:
>> VIA have always told me that "ACPI handles this" and we don't need
>> quirks. Various chips have different IRQ routing logic and it's all a
>> bit weird if we don't use ACPI and/or BIOS routing.
>
> So why isn't acpi handling all of this for us? Do people not want to
> use acpi for some reason?

It doesn't appear to be this simple in reality. Chris has reports that
indeed enabling ACPI avoids the needs for quirks, but Gentoo have
reports that quirks are *only* required in ACPI mode. Sergio is of the
opinion that quirks are not required in IO-APIC setups, but Stian has
shown that quirks are required on legacy interrupts even with a working
IO-APIC setup.

Len Brown has some notes to add:
http://lists.openwall.net/linux-kernel/2006/07/14/147

Daniel
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