lkml.org 
[lkml]   [2017]   [Feb]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2] PCI: pciehp: Don't enable PME on runtime suspend
On Wed, Feb 08, 2017 at 05:23:54AM +0100, Lukas Wunner wrote:
> On Tue, Feb 07, 2017 at 05:04:45PM +0100, Rafael J. Wysocki wrote:

> > The bottom line, in any case, is that the current code causes problems to
> > happen somewhere and as a rule we don't release code that is known to
> > cause problems to happen to anyone. This means something needs to be done
> > about that and the choice at this point is pretty much between reverting and
> > quirking the affected system(s).
>
> Quirking is not an option in this case because the PCI device IDs of the
> affected hotplug ports as well as DMI data are unknown. Yinghai Lu is
> refusing to publish that, for both affected systems.

A quirk is appropriate if the hardware isn't working per spec. I
don't think we have convincing evidence of that yet, so I'm more
interested in investigating that than I am in getting the device IDs
to add a quirk.

I suspect there's useful information to be had by disabling CONFIG_PM
and CONFIG_HOTPLUG_PCI_PCIE and poking things with setpci, which could
be done regardless of any NDAs.

Bjorn

\
 
 \ /
  Last update: 2017-02-08 19:14    [W:0.069 / U:0.268 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site