Re: [PATCH 206/228] cpufreq: sa11x0: remove calls to cpufreq_notify_transition()

From: Viresh Kumar
Date: Fri Sep 13 2013 - 12:12:28 EST


On 13 September 2013 21:24, Russell King - ARM Linux
<linux@xxxxxxxxxxxxxxxx> wrote:
> On Fri, Sep 13, 2013 at 06:32:32PM +0530, Viresh Kumar wrote:
>> Most of the drivers do following in their ->target_index() routines:
>>
>> struct cpufreq_freqs freqs;
>> freqs.old = old freq...
>> freqs.new = new freq...
>>
>> cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
>>
>> /* Change rate here */
>>
>> cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
>>
>> This is replicated over all cpufreq drivers today and there doesn't exists a
>> good enough reason why this shouldn't be moved to cpufreq core instead.
>>
>> Earlier patches have added support in cpufreq core to do cpufreq notification on
>> frequency change, this one removes it from this driver.
>>
>> Some related minor cleanups are also done along with it.
>>
>> Cc: Russell King <linux@xxxxxxxxxxxxxxxx>
>> Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
>
> Shouldn't this patch set CPUFREQ_ASYNC_NOTIFICATION somewhere?

As far as I can see, sa11x0 completes frequency transition from within
target() and so it does it synchronously.. And so it doesn't need to set
CPUFREQ_ASYNC_NOTIFICATION...

Am I missing something?
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