Re: [PATCH] Revert "xhci: Limit USB2 port wake support for AMD Promontory hosts"

From: Mathias Nyman
Date: Mon Sep 18 2017 - 04:02:57 EST

On 16.09.2017 07:49, Kai-Heng Feng wrote:
On Mon, Aug 28, 2017 at 9:56 PM, Kai-Heng Feng
<kai.heng.feng@xxxxxxxxxxxxx> wrote:
On Mon, Aug 28, 2017 at 6:14 PM, Mathias Nyman
<mathias.nyman@xxxxxxxxxxxxxxx> wrote:
On 28.08.2017 12:29, Greg KH wrote:

Adding more people who were involved in the original patch.

Users are now seeing the unresponsive USB2 ports with Promontory hosts.
Is there any update on a better way to solve the original issue.

To me a "dead" USB2 port seems like a much worse issue for a user
than a BIOS disabled port waking up on plug/unplug (wake on
so I'm myself in favor of doing this revert.

At least I can't find "Disable USB2" on my ASUS PRIME B350M-A, so the
new behavior is quite surprising.

But there was a strong push from Promontory developers to get the original
fix in,
and I would like to get some comment from them before I do anything about

You looped them to the mail thread which I reported the regression two
weeks ago, and there is no response since then...

Still no response from AMD and ASMedia guys.

I don't like to use out-of-tree patches for myself, but probably it's
the only way here?

I'll revert it and send it forward now since rc1 is out