[PATCH 3/3] cpufreq: Add a generic cpufreq-cpu0 driver

[Turquette, Mike]

On Fri, Jul 20, 2012 at 5:33 AM, Shawn Guo <shawn.guo at linaro.org> wrote:
> On Fri, Jul 20, 2012 at 12:22:14PM +0530, Shilimkar, Santosh wrote:
>> This *_CPU0 doesn't seems to be appropriate since this infrastructure will be
>> used on SMP systems where CPUs shares clock/voltage rails. May be you can
>> get rid of that unless there is a strong need.
>>
> All the resource handlers, clk, regulator, opp, DT node, are retrieved
> from CPU0 device even for SMP.  I hope the naming of the driver could
> tell:
>
> - The driver supports UP
> - The driver supports SMP where CPUs shares clock/voltage rails by
>   managing CPU0 (resource)
> - The driver does not support SMP where individual CPU can scale
>   clock/voltage independently.
>

How about cpufreq-single-thread.c and CONFIG_CPUFREQ_SINGLE_THREAD?
That makes sense for both UP and SMP.

Regards,
Mike