Re: [PATCH] implement pm_ops.valid for everybody

Pavel Machek
2007-03-21T23:31:43Z

Hi!

> > (And trust me, we can flame them if not).
> >
> > (Anyway, my definition would be "mem" == RAM is powered, everything
> > else is down, except for devices needed for wakeup; "standby" ==
> > something is powered that can be powered down, we'll fix that in next version).
>
> That implies that standby is less desirable, and wouldn't be used much.
>
> That's a false implication. Among other things, it may be more important
> to have various wakeup event sources at moderate power, than to go
> without them at lower power. Simple math: N hours at 75% power savings,
> which lets the system become fully operational at any time; versus those
> same hours at 0% power savings (full power), because STR (90% savings)
> doesn't support some essential wakeup events.

I guess we are violently agreeing. See my "except for devices needed
for wakeup". I should not have added the "next version" note, as
"standby" is useful, too.
Pavel
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