Power management concept...

Harald Welte laforge at openmoko.org
Tue Apr 24 13:03:52 CEST 2007

On Fri, Apr 20, 2007 at 12:53:10PM +0200, Nils Faerber wrote:
> Harald Welte schrieb:
> > On Thu, Apr 19, 2007 at 05:16:51PM +0200, Nils Faerber wrote:
> >> Yes, saw that. Though that the GSM modem seems to be quite confused
> >> afterwards, i.e. I have to power it down, power on again and restart
> >> gsmd to get it to work again (most of the times at least).
> > Note that none of the phones ever shipped has a GSM firmware installed
> > that supports proper suspend/resume.  We have something like a six to
> > eight week turn around time when reporting an issue to Ti until we get a
> > fix :(
> If the suspend mode (i.e. power-off mode in Samsung terms, i.e. self
> refresh SDRAM and wake-up configured) is the mode that will be used as
> state 90% of the run-time (most of the time the phone will be waiting
> for events in a pocket) couldn't we simply leave the modem running in
> run-state and leave the suspend/resume feature as a later enhancement?

the suspend mode (power-off mode with sdram self-refresh) is exactly the
suspend/resume that we're talking about.

I don't really understand what you want, sorry.  

What you describe seems to be what is in place right now.

- Harald Welte <laforge at openmoko.org>          	        http://openmoko.org/
Software for the world's first truly open Free Software mobile phone
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