From: Russ.Dill@ti.com (Russ Dill)
To: linux-arm-kernel@lists.infradead.org
Subject: ARM hibernation / suspend-to-disk
Date: Wed, 29 May 2013 10:23:41 -0700 [thread overview]
Message-ID: <51A6399D.4090606@ti.com> (raw)
In-Reply-To: <20130529081005.GA25561@hal>
On 05/29/2013 01:10 AM, Jan Glauber wrote:
> Hi list,
>
> what's the status of suspend-to-disk on ARM? The most recent discussion I
> found is:
> http://lists.linuxfoundation.org/pipermail/linux-pm/2012-November/034997.html
>
> with no replies at all. Is anyone still working on that? Anyone got it running?
>
> I tried the patch above (on top of LTS 3.4) and got stuck forever, the last
> thing on the console was:
>
> root at omap5:/sys/power# echo disk > state
> [ 2015.641540] PM: Syncing filesystems ... done.
> [ 2015.666870] PM: Preallocating image memory... done (allocated 16957 pages)
> [ 2016.062011] PM: Allocated 67828 kbytes in 0.38 seconds (178.49 MB/s)
>
> Any hint how to debug that?
>
> thanks,
> Jan
>
Because of the nature of omap5 PM, you'd need omap5 specific support in
order for this to work. Specifically, there are a number of assumptions
about certain power domains never losing state. You can take a look at
the work I did to get this working on am335x here:
https://github.com/russdill/linux/commits/arm-hibernation-am33xx
For ARM hibernation support to get merged, there needs to be at least
one platform that supports it. the am335x code I have is not ready as it
still relies on PM patchsets that have not yet themselves been merged.
next prev parent reply other threads:[~2013-05-29 17:23 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-29 8:10 ARM hibernation / suspend-to-disk Jan Glauber
2013-05-29 8:25 ` [linux-pm] " Viresh Kumar
2013-05-29 17:23 ` Russ Dill [this message]
2014-01-28 14:14 ` Pavel Machek
2014-01-28 18:22 ` Sebastian Capella
2014-01-28 18:30 ` Sebastian Capella
2014-01-30 18:06 ` Pavel Machek
2014-01-30 18:27 ` Sebastian Capella
2014-02-16 13:11 ` TonyHo
2014-02-24 21:54 ` Sebastian Capella
2014-03-02 7:57 ` tonyho
2014-03-04 5:12 ` Sebastian Capella
2014-03-04 11:04 ` TonyHo
2014-03-05 0:16 ` Sebastian Capella
2016-01-11 16:43 ` Johann
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