On 27 March 2014 15:41, Vaidyanathan Srinivasan
<sva...@linux.vnet.ibm.com> wrote:
>> > Why do you need to get these from DT? And not find that yourself here
>> > instead?
> DT provides the values that we should use. Ideally these are the
> upper and lower limits of the PState table, however as per the
> platform spec, we should use the PState IDs between these limits. We
> would like to parse it and keep it in the driver for debug purposes.
>
> The platform exports this info in the DT to be more explicit and not
> have a strong dependency on the PState numbering or PState table
> itself. In the driver we parse it for debug/validation purpose.
I couldn't find how they are used for debugging except this:
+ pr_info("cpufreq pstate min %d nominal %d max %d\n", pstate_min,
+ pstate_nominal, pstate_max);
This is the only place where these values are used.
Anyway, you can keep it if you really want to..
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