Re: [PATCH v2] PCI: imx6: add dt prop for link gen, default to gen1

[Bjorn Helgaas <helgaas@kernel.org>]

[+cc Tim]

On Wed, Feb 24, 2016 at 07:35:55PM +0000, Akshay Bhat wrote:
> Tim Harvey <tharvey <at> gateworks.com> writes:
> 
> > >>
> > >> Is there some sort of DT or OF spec that lists "max-link-speed" as a
> > >> generic property?  I see Lucas' desire to have this be common across
> > >> DesignWare PCIe cores.  Should it be moved up a level even from there,
> > >> i.e., to bindings/pci/pci.txt?
> > >
> > > Bjorn,
> > >
> > > I don't know what the general consensus is here. As your the PCI
> > > maintainer I would leave that up to you. Are there other platforms
> > > that need to link at a lesser capability than the host controller is
> > > capable of? I am only aware of the IMX6 and SPEAr13XX [1]
> > >
> > > I can make that change and re-submit if you feel that is necessary.
> > >
> > 
> > Bjorn,
> > 
> > Any thoughts here? I would really like to see this get picked up
> > sooner rather than later.
> > 
> > Regards,
> > 
> > Tim
> > 
> 
> Bjorn,
> 
> It looks like there was no further follow-up on this patch. Could you 
> kindly provide feedback to Tim's question? We have multiple i.MX boards 
> that could use this patch to resolve PCIe issues.

Tim had mentioned doing a v3 with a documentation update, so I
dropped the v2 patch in anticipation of v3, which never appeared.

Looking at it again, I have another question, so I'll respond to that
thread again.

Bjorn