[PATCH 2/4] cpufreq: add i.MX5 cpufreq driver

[Lucas Stach]

Am Montag, den 26.05.2014, 20:52 +0530 schrieb Viresh Kumar:
> On 26 May 2014 19:28, Lucas Stach <l.stach at pengutronix.de> wrote:
> > Right, the OPP in my example define the minimum required voltage for
> > each frequency. This is in accordance to the OPP binding. But for this
> > chip the datasheet explicitly says that it is ok to power the cpu rail
> > with up to 1.4V, regardless of the current operating frequency. So this
> > 1.4V is really the upper bound I would like to pass to the regulator
> > framework. This ensures that the driver still works properly even if the
> > external regulator can't scale down to the minimum (or in other words
> > optimal) voltage.
> 
> One more query. You have mentioned earlier and I just wanted to confirm
> this. In your platform/board regulator only supports one voltage, i.e. 1.4 uV,
> and it we can't get lower values out of regulator ?
> 
> If that's the case, why are you looking to use regulator at all?

The platform I'm working on supports cpu rail voltage regulation just
fine.
I just want to make sure that the driver works properly on platforms
where this isn't the case. As the datasheet explicitly allows this case
I want to make sure to not introduce a software only restriction, where
there isn't any in hardware.

Regards,
Lucas
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