lkml.org 
[lkml]   [2018]   [May]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH v3] PCI / PM: Always check PME wakeup capability for runtime wakeup support
Date
On Friday, May 4, 2018 9:36:01 AM CEST Kai Heng Feng wrote:
> Hi Rafael,
>
> > On Apr 26, 2018, at 10:36 PM, Rafael J. Wysocki <rjw@rjwysocki.net> wrote:
> >
> > On Thursday, April 26, 2018 3:55:45 PM CEST Bjorn Helgaas wrote:
> >> On Fri, Apr 13, 2018 at 09:29:56AM +0200, Rafael J. Wysocki wrote:
> >>> On Friday, April 13, 2018 8:58:11 AM CEST Kai Heng Feng wrote:
> >>>> Hi Bjorn and Rafael,
> >>>>
> >>>>> On Apr 1, 2018, at 12:40 AM, Kai-Heng Feng
> >>>>> <kai.heng.feng@canonical.com>
> >>>>> wrote:
> >>>>>
> >>>>> USB controller ASM1042 stops working after commit de3ef1eb1cd0 ("PM /
> >>>>> core: Drop run_wake flag from struct dev_pm_info").
> >>>>>
> >>>>> The device in question is not power managed by platform firmware,
> >>>>> furthermore, it only supports PME# from D3cold:
> >>>>> Capabilities: [78] Power Management version 3
> >>>>> Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0-,D1-,D2-,D3hot-,D3cold+)
> >>>>> Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
> >>>>>
> >>>>> Before commit de3ef1eb1cd0, the device never gets runtime suspended.
> >>>>> After that commit, the device gets runtime suspended, so it does not
> >>>>> respond to any PME#.
> >>
> >> Apologies for my lack of PM expertise. I don't think the device would
> >> *respond* to PME#, would it? I would think the device would
> >> potentially *generate* a PME#.
> >
>
> Do you want me to send another version with updated commit message?

Yes, please.

> I can also split it to two commits if you desire.

No, that's not necessary.

Thanks,
Rafael

\
 
 \ /
  Last update: 2018-05-04 11:56    [W:0.045 / U:1.888 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site