Hi Fabio,

Am 30.08.2014 19:07, schrieb Fabio Estevam:

On Sat, Aug 30, 2014 at 2:05 PM, Fabio Estevam [off-list ref] wrote:

quoted

Hi Stefan,

On Mon, Aug 25, 2014 at 7:30 AM, Stefan Wahren [off-list ref] wrote:

quoted

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:
http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/tree/drivers/regulator/mxs-regulator.c?h=imx_2.6.35_maintain

,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 
linux-arm-kernel)?

BR Stefan