Kirkwood CPU Freq driver

[Jason Cooper]

On Tue, May 28, 2013 at 08:58:25PM -0400, Jason Cooper wrote:
> On Tue, May 28, 2013 at 10:36:13PM +0100, Adam Baker wrote:
> > On 26/05/13 19:05, Jason Cooper wrote:
> > >On Sun, May 26, 2013 at 10:36:14AM +0200, Andrew Lunn wrote:
> > >>On Sat, May 25, 2013 at 10:32:04PM +0100, Adam Baker wrote:
> > >>>I've been trying to test Andrew Lunn's work creating a CPU Idle
> > >>>driver for Kirkwood.
> > >>
> > >>Thanks for testing this. I must admit, i never tested it once the
> > >>first rc came out. I clearly should of, because its broken. It was a
> > >>three part patch series, and only part 1/3 made it in. Hence the
> > >>issues you are seeing.
> > >>
> > >>Jason, please can you pick up:
> > >>
> > >>https://patchwork.kernel.org/patch/2051401/
> > >>https://patchwork.kernel.org/patch/2080931/
> > >
> > >Yep, got them in now.  Sorry for the mix up.
> > >
> > 
> > I've now tested with the first of these patches applied and the
> > changes from the second added to my .config
> > 
> > To get it to work I had to follow the instructions in the
> > Documentation to add the cpus entry to kirkwood.dtsi so I'll post
> > that as a patch in a day or two but after doing that I have a
> > working cpufreq driver.
> > 
> > Measuring the power consumption of my NAS server I observed a slight
> > reduction in power consumption when the clock rate was reduced. I
> > haven't yet measured for long enough to get an accurate measurement
> > but it looks like maybe 1/4 W power saving.
> > 
> > Feel free to add
> > 
> > Tested-by: Adam Baker <linux at baker-net.org.uk>
> 
> I apologize, but I won't be able to add this.  I'm using a new work
> flow, and took the patches in too quickly (well, they had been on the
> list a while... :-P)  I should've let them sit in my tree for a few more
> days before sending the pull request to arm-soc.  If I had done that, I
> could've gone in and added the Tested-by:.  I'll be more careful in the
> future.

I take this back.  Olof didn't pull last night like I thought he would,
and he said I have a few hours until he pulls tonight.  So I've added it
now.  Sorry for the confusion.

thx,

Jason.