Re: Nokia N900: Proper C-states

From: Tony Lindgren
Date: Mon Feb 15 2016 - 10:25:52 EST


* Pali RohÃr <pali.rohar@xxxxxxxxx> [160215 02:12]:
> On Thursday 11 February 2016 09:47:50 Tony Lindgren wrote:
> > * Pali RohÃr <pali.rohar@xxxxxxxxx> [160211 07:03]:
> > > > On 02/09/2016 04:56 PM, Tony Lindgren wrote:
> > > > >I'm almost certain those values are not n900 specific but should be
> > > > >used for omap3430 in general.
> > >
> > > cpuidle parameters for Nokia N900 were added by this commit:
> > >
> > > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5a1b1d3a9efad6bd53d01ff02e86626d1a51d697
> > >
> > > which says:
> > >
> > > Numbers based on measurements made in October 2009 for PM optimized
> > > kernel with CPU freq enabled.
> > >
> > > Tony, do you have any other omap3430 device?
> >
> > Yes I can make sure it works for omap3-ldp for a minimal case.
> > That's a 3430 ES 3.0 that's a GP SoC.
> >
> > Regards,
> >
> > Tony
>
> Ok. If it works and you think those values are not Nokia N900 specific,
> but omap3430, we can add them into kernel.
>
> Do you want me to prepare patch? Or will you do it?

Yes please do if you can, I have my hands full with other
regressions in Linux next.

Regards,

Tony