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RE: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing runtime suspend

From Alan Stern <stern@rowland.harvard.edu>
Newsgroups linux.kernel
Subject RE: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing runtime suspend
Date 2015-09-08 16:50 +0200
Message-ID <q6snD-7de-17@gated-at.bofh.it> (permalink)
References <q6fJM-5Z2-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Tue, 8 Sep 2015, Tirdea, Irina wrote:

> In the previous discussion thread , there were a couple of options
> mentioned, but none seemed to reach a consensus. You mentioned
> adding a "more aggressive runtime PM mode" [1]. I'm not sure how
> this would work except for adding a sysfs attribute that would trigger
> a runtime suspend while ignoring usage count. Would that be a
> better direction?
> 
> Thank you,
> Irina
> 
> [1] http://marc.info/?l=linux-input&m=140564626306396&w=2

Purely as a matter of interest, in that email Rafael also mentioned
that he and I had discussed a way to disable remote wakeup during 
runtime suspend.  Oddly enough, the method we decided upon was to add 
an "off" option to /sys/.../power/control.  :-)

It would not put the device into runtime suspend immediately, like you
are proposing.  Instead it would mean the same as the "auto" mode,
except that remote wakeup should be disabled during runtime suspend.

We never got around to implementing this, however.

Alan Stern

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Thread

[RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing runtime suspend Irina Tirdea <irina.tirdea@intel.com> - 2015-09-07 22:50 +0200
  Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing runtime suspend "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2015-09-07 23:00 +0200
    RE: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend "Tirdea, Irina" <irina.tirdea@intel.com> - 2015-09-08 03:20 +0200
      Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Oliver Neukum <oneukum@suse.com> - 2015-09-08 09:40 +0200
        Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend "Rafael J. Wysocki" <rafael@kernel.org> - 2015-09-08 23:00 +0200
          Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Ulf Hansson <ulf.hansson@linaro.org> - 2015-09-09 00:30 +0200
            Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend "Rafael J. Wysocki" <rafael@kernel.org> - 2015-09-09 02:00 +0200
              Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Octavian Purdila <octavian.purdila@intel.com> - 2015-09-09 13:20 +0200
                Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend "Rafael J. Wysocki" <rafael@kernel.org> - 2015-09-09 14:30 +0200
                Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Oliver Neukum <oneukum@suse.com> - 2015-09-09 16:00 +0200
                Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Octavian Purdila <octavian.purdila@intel.com> - 2015-09-09 17:10 +0200
                Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing runtime suspend "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2015-09-09 22:00 +0200
                Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Oliver Neukum <oneukum@suse.com> - 2015-09-10 11:50 +0200
                Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Pavel Machek <pavel@ucw.cz> - 2015-09-21 14:30 +0200
                Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Alan Stern <stern@rowland.harvard.edu> - 2015-09-09 17:30 +0200
                Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing runtime suspend "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2015-09-09 22:10 +0200
                Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Colin Cross <ccross@google.com> - 2015-09-09 22:20 +0200
                Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Pavel Machek <pavel@ucw.cz> - 2015-09-21 14:40 +0200
                Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Alan Stern <stern@rowland.harvard.edu> - 2015-09-21 16:40 +0200
                Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Dmitry Torokhov <dmitry.torokhov@gmail.com> - 2015-09-21 18:20 +0200
                Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Alan Stern <stern@rowland.harvard.edu> - 2015-09-21 18:40 +0200
                Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Dmitry Torokhov <dmitry.torokhov@gmail.com> - 2015-09-21 19:00 +0200
                Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Alan Stern <stern@rowland.harvard.edu> - 2015-09-21 19:40 +0200
                Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Dmitry Torokhov <dmitry.torokhov@gmail.com> - 2015-09-21 20:10 +0200
                Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Alan Stern <stern@rowland.harvard.edu> - 2015-09-21 22:10 +0200
                Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Dmitry Torokhov <dmitry.torokhov@gmail.com> - 2015-09-21 23:00 +0200
                Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Pavel Machek <pavel@ucw.cz> - 2015-09-21 22:30 +0200
      RE: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Alan Stern <stern@rowland.harvard.edu> - 2015-09-08 16:50 +0200
        Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing runtime suspend "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2015-09-08 16:50 +0200
          Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Alan Stern <stern@rowland.harvard.edu> - 2015-09-08 17:10 +0200
            Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend "Rafael J. Wysocki" <rafael@kernel.org> - 2015-09-08 22:30 +0200
              Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Alan Stern <stern@rowland.harvard.edu> - 2015-09-09 17:30 +0200
        Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Oliver Neukum <oneukum@suse.com> - 2015-09-09 08:30 +0200
          Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing  runtime suspend Alan Stern <stern@rowland.harvard.edu> - 2015-09-09 16:40 +0200

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