Re: pm loss development

[Rafael J. Wysocki]

On Friday, May 13, 2011, Raffaele Recalcati wrote:
> Hi Rafael,
> 
> 2011/5/12 Rafael J. Wysocki <rjw@xxxxxxx>:
> > On Thursday, May 12, 2011, Raffaele Recalcati wrote:
> >> What happen normally in runtime pm implementation is that every devices
> >> are switched off and are enabled only when needed.
> >> In our case instead we have a completely functional embedded system and,
> >> when an asyncrhonous event appear, we have only some tens milliseconds
> >> before the actual power failure takes place.
> >> This patchset add a support in order to switch off not vital part of the system,
> >> in order to allow the board to survive longer.
> >> This allow the possibility to save important data.
> >
> > OK, so first, who decides what parts of the system are vital and what aren't?
> 
> Take a quick look at Documentation/power/loss.txt  paragrpah "2.4
> Power loss policies".
> You can decide what can be powered off.

I read the patches.  My question was about the general idea of who should
be responsible of making these decisions.

Thanks,
Rafael
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