Re: PM branch rebased to 2.6.29

[Kevin Hilman <khilman@deeprootsystems.com>]

Russ Dill <russ.dill@gmail.com> writes:

[...]

>
> root@beagleboard:/sys/power# echo 1 > clocks_off_while_idle
> root@beagleboard:/sys/power# echo 1 > enable_off_mode
> root@beagleboard:/sys/power# echo 1 > voltage_off_while_idle
> root@beagleboard:/sys/power# echo mem > state
> PM: Syncing filesystems ... done.
> Freezing user space processes ... (elapsed 0.00 seconds) done.
> Freezing remaining freezable tasks ... (elapsed 0.00 seconds) done.
> Suspending console(s) (use no_console_suspend to debug)
> omapfb omapfb: timeout waiting for FRAME DONE
> Successfully put all powerdomains to target state
> Restarting tasks ... done.
>
> Neato :) This is still with all the user processes running an with a
> NAND filesystem. I'm still getting rather high ~80mA@5V power
> consumption, so I'll need to further investigate what rails the
> twl4030 is actually turning off.

Great!  glad it worked for you.

The kernel has some work to do to be sure that *everything* is
properly init'd to allow proper idle states.  Until then,
unfortunately we have to rely on more gentle bootloaders.

And FWIW, on my Beagle, I've never seen < 80mA either, but I haven't
done any further digging.

Kevin