[PATCH] i.MX6 PCIe: Fix imx6_pcie_deassert_core_reset() polarity

[Krzysztof Hałasa]

Tim,

> So perhaps there is something else going on with the tw8689
> device/driver that is causing it to not work with MSI. We have an
> avc8000 miniPCIe with tw8689 here and can test if you send me your
> patches that enable tw8689 with msi.

I think you can use this:
http://git.linuxtv.org/hverkuil/media_tree.git/log/?h=tw686x

> Regardless of MSI working in our tests we still disable it because of
> it breaking legacy irqs and for performance reasons.

So do I. However I'm also using Fedora 23 and this means I have to
recompile the kernel, since they build it with MSI enabled.
I think we should fix it, either by disabling in run time, or making it
work.

Performance-wise, I found it "surprising" that one can't have multiple
MSIs with separate hw vector for each.
-- 
Krzysztof Halasa

Industrial Research Institute for Automation and Measurements PIAP
Al. Jerozolimskie 202, 02-486 Warsaw, Poland