[lkml]   [2011]   [May]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
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.



 \ /
  Last update: 2011-05-13 08:41    [W:0.099 / U:68.260 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site