Re: [RFC V7 2/2] OPP: Allow "opp-hz" and "opp-microvolt" to contain magic values

[Rob Herring]

On Tue, Oct 31, 2017 at 9:17 PM, Viresh Kumar <viresh.kumar@xxxxxxxxxx> wrote:
> On 31 October 2017 at 16:02, Rob Herring <robh+dt@xxxxxxxxxx> wrote:
>> Why not a new property for magic values? opp-magic? Don't we want to
>> know when we have magic values?
>
> I have kept a separate property since beginning (domain-performance-state)
> and moved to using these magic values in the existing field because of the
> suggestion Kevin gave earlier.
>
> https://marc.info/?l=linux-kernel&m=149306082218001&w=2
>
> I am not sure what to do now :)

Okay, I guess reusing the properties is fine.

>> Wouldn't magic values in opp-hz get propagated to user space?
>
> The OPP core puts them in debugfs just to know how the OPPs are
> set. Otherwise, I am not sure that the power domain core/drivers would
> be exposing that to user space.

I was thinking thru the cpufreq interface, but I guess this is not for cpus.

Rob