Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: i2c runtime suspend and system wide suspend | Date | Thu, 30 Dec 2010 11:49:30 +0100 |
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On Thursday, December 30, 2010, Rabin Vincent wrote: > On Thu, Dec 30, 2010 at 10:09 AM, Abhijeet Dharmapurikar > <adharmap@codeaurora.org> wrote: > > The i2c-core driver mixes runtime suspend and system wide suspend, in that, > > during a system wide suspend, it skips calling ->suspend if the device is > > runtime suspended. > > > > I have an interrupt controller running over the i2c bus and that driver is > > oblivious of the runtime pm framework, IOW, it doesn't do any runtime pm > > calls. CONFIG_RUNTIME_PM is enabled however (for some other bus drivers). > > The issue I am facing is that all such i2c devices are assumed runtime > > suspended and the ->suspend for these devices is not invoked during > > systemwide suspend. > > This was discussed on linux-pm recently. Rafael had a fix, I'm don't know > whether it's applied yet: > > https://lists.linux-foundation.org/pipermail/linux-pm/2010-December/029567.html > https://lists.linux-foundation.org/pipermail/linux-pm/2010-December/029596.html
Yes, the fix is already in the Linus' tree:
f08f5a0 PM / Runtime: Fix pm_runtime_suspended()
> Also relevant: > > https://lists.linux-foundation.org/pipermail/linux-pm/2010-December/029600.html > https://lists.linux-foundation.org/pipermail/linux-pm/2010-December/029658.html
I'm not sure what happened to the last patch. Is there a new version? If so, is it going to be pushed through the i2c tree, or should I take it?
Rafael
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