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    SubjectRe: pm loss development
    Hi Rafael,

    2011/5/12 Rafael J. Wysocki <>:
    > 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.



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