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Re: [PATCH 2/3] acpi_video: Intel video is not always i915

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On Tue, Apr 24, 2012 at 11:31:17PM +0100, Alan Cox wrote:
> On Tue, 24 Apr 2012 22:02:18 +0100
> Matthew Garrett <mjg59@xxxxxxxxxxxxx> wrote:
> > The PowerVR Intels I'd seen had the opregion address in the 0xfc 
> > register as well. Is this no longer true on the latest?
> 
> PowerVR does - i740 never did.
> 
> The PowerVR 0xfc poking also doesn't currently work once the driver takes
> over because it isn't yet implementing the driver end of the weird ACPI
> messaging/event stuff.
> 
> Once it does the GMA500 will be able to do an ACPI video register, but we
> will still need the check to get the ifdeffery right for what drivers are
> compiled for the kernel.

Right now you seem to set opregion unconditionally on PVR, which seems 
to be equivalent to the 0xfc check that was there before - I can 
understand excluding i740, but the PVR check could be left with the gen 
hardware one?

-- 
Matthew Garrett | mjg59@xxxxxxxxxxxxx
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