ARM: mx28: cpufreq-cpu0 support?

Stefan Wahren info at
Sun Aug 31 23:31:05 PDT 2014

Hi Fabio,

Am 30.08.2014 19:07, schrieb Fabio Estevam:
> On Sat, Aug 30, 2014 at 2:05 PM, Fabio Estevam <festevam at> wrote:
>> Hi Stefan,
>> On Mon, Aug 25, 2014 at 7:30 AM, Stefan Wahren <info at> wrote:
>>> As far as i know, the old Freescale BSP (2.6.35) contains a cpufreq driver
>>> for mxs, which never goes to mainline. So i'm not sure what would be the
>>> best way: porting the old driver or using cpufreq-cpu0.
>> First step would be to port the PMU driver into mainline.
> I mean this regulator driver:
> ,so that you can do the voltage scaling.

thanks. Okay, that leads to more questions:

How can i test a ported mxs-regulator driver, that it's really working? 
Is there any userspace interface?

Is there a good DT implementation of a similiar regulator driver, so i 
can orientate on?

What are the recommend mailing lists for this porting (linux-pm and 

BR Stefan

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