linux-kernel - Re: pm loss development

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Message-Id: <201105122127.44484.rjw@sisk.pl>
Date:	Thu, 12 May 2011 21:27:44 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Raffaele Recalcati <lamiaposta71@...il.com>
Cc:	linux-pm@...ts.linux-foundation.org,
	davinci-linux-open-source@...ux.davincidsp.com,
	linux-kernel@...r.kernel.org
Subject: Re: pm loss development

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?

Thanks,
Rafael
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