[PATCH] Add idle power save for ppc 4xx

[Josh Boyer]

On Tue, 2008-04-01 at 12:04 +1100, Michael Ellerman wrote:
> > > > I'm assuming you pass a dtb to the virtual guest when you start it up.
> > > > Could you define a property in the CPU node there that can be parsed to
> > > > use the power_save function instead of always making it the default?
> > > 
> > > Actually, you probably don't want this as a property in the device
> > > tree.  It doesn't describe hardware.  A Kconfig option might be
> > > warranted though.
> > 
> > I'll go with the Kconfig option. 
> 
> Go with a device-tree check. The pseries kernel supports both bare-metal
> and hypervisor in the same kernel image, and it works out which it's
> running on by looking at the device-tree. This seems equivalent to me?

After some back and forth on IRC, we decided on that as well.  I love
being right, then wrong, then right again.

/me needs more sleep.

josh