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

Shawn Guo shawn.guo at linaro.org
Sat Jul 21 02:38:13 EDT 2012


On Sat, Jul 21, 2012 at 10:34:29AM +0530, Shilimkar, Santosh wrote:
> On Fri, Jul 20, 2012 at 9:20 PM, Turquette, Mike <mturquette at ti.com> wrote:
> > How about cpufreq-single-thread.c and CONFIG_CPUFREQ_SINGLE_THREAD?
> > That makes sense for both UP and SMP.
> >
> Indeed. This sounds more appropriate and also reflects what actually happens
> with a UP or shared clock SMP case.
> 
While I agree with this observation, the suggested naming does not
reflect the rationale of CPU0 though, which is really important for
driver to work, and is exactly the thing I like about *_CPU0 naming.

The driver needs the following stuff around CPU0 to be functional.

- Device tree node /cpus/cpu at 0
- clk lookup with dev_id being "cpu0"
- regulator with id being "cpu0"

I think the *_CPU0 naming does a better job on emphasising those in the
first place.

-- 
Regards,
Shawn




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