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From: Jesse Barnes on 28 May 2010 15:30
On Wed, 26 May 2010 12:21:10 +0200
Clemens Ladisch <clemens(a)ladisch.de> wrote:

> In all AMD 780 family northbridges, the vendor ID of the internal
> graphics PCI/PCI bridge reads not as AMD but as that of the mainboard
> vendor, because the hardware actually returns the value of the subsystem
> vendor ID (erratum 18).
>
> We currently have additional quirk entries for Asus and Acer, but it is
> likely that we will encounter more systems with other vendor IDs.
>
> Since we do not know in advance all possible vendor IDs, a better way to
> find the device is to declare the quirk on the host bridge, whose ID is
> always correct, and use that device as a stepping stone to find the PCI/
> PCI bridge, if present.
>
> Signed-off-by: Clemens Ladisch <clemens(a)ladisch.de>

Applied to my for-linus branch, thanks.

--
Jesse Barnes, Intel Open Source Technology Center
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