Re: [PATCH v5] PCI: Detect and trust built-in Thunderbolt chips

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On Wed, Oct 30, 2024 at 02:11:31PM +0100, Lukas Wunner wrote:
> > IMHO this should be made generic enough that allows device tree based
> > systems to take advantage of this right from the get-go. Note also there
> > is already "external-facing" device tree property that matches the ACPI
> > one defined in Documentation/devicetree/bindings/pci/pci.txt.
> 
> The workaround implemented by Esther's patch (only) becomes necessary
> because OEMs followed Microsoft's spec blindly and put the property
> below the Root Port, instead of the Downstream Port.

Honestly I don't know how else that could be implemented otherwise
without changing that definition (which BTW came from Intel originally).
They did the exact correct thing. The only real problem is that Linux
interprets it in different way.




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