On 11 March 2015 at 16:23, Mark Brown [off-list ref] wrote:

On Tue, Mar 10, 2015 at 08:20:43AM +0530, Viresh Kumar wrote:

Please don't send upstream e-mail to my work account, I use this address
pretty consistently for upstream.  Upstream mail to my work account
frequently ends up unread.

Sorry about that, I did exactly opposite of this earlier :(

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On 6 March 2015 at 11:19, Pi-Cheng Chen [off-list ref] wrote:

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On 5 March 2015 at 17:55, Viresh Kumar [off-list ref] wrote:

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About putting
those stuff into regulator driver, I think you mean creating a
"virtual regulator
device" and put all the voltage controlling complex into the driver, right?
Maybe it's a good idea in this case, but I am sure if this kind of
virtual regulator is acceptable.

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@Mark: Is this allowed to create virtual regulator for a CPU ?

I don't really know what the above means or what problem it's supposed
to solve.

On mediatek platform, they need to configure two regulators in order to change
DVFS state of the big cluster. The generic cpufreq-dt driver and earlier OPP
bindings have support for a single regulator only and so what Pi-cheng tried
to do is,
- Configure one of the regulators using cpufreq-dt
- And other one using cpufreq frequency change notifiers

This looks awkward..

What I suggested was to create another virtual regulator for CPU which will
eventually configure both the regulators. And so the question that such
virtual regulators are allowed or not.