Re: [PATCH v2 2/2] Documentation: devicetree: Add boost-frequency binding to list boost mode frequency

Sudeep Holla
2014-02-10T10:46:31Z

On 08/02/14 06:47, Thomas Abraham wrote:
> On Fri, Feb 7, 2014 at 11:32 PM, Sudeep Holla <Sudeep.Holla@arm.com> wrote:
>> On 07/02/14 17:37, Nishanth Menon wrote:
>>> On Fri, Feb 7, 2014 at 11:31 AM, Sudeep Holla <Sudeep.Holla@arm.com> wrote:
>>
>> [...]
>>
>>>> Yes I think its counter-intuitive as it's visible to the userspace(list of
>>>> frequencies and the boost parameters are exposed through sysfs)
>>>
>>> That will be a different problem -> as currently every single
>>> frequency in the cpufreq list has ability to be marked as boost
>>> frequency - if userspace does not maintain that, then, IMHO, fix the
>>> userspace :D
>>>
>>
>> /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_frequencies gives
>> the list of frequencies based on the state of the boost feature at anytime.
>
> The list of frequencies in
> /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_frequencies
> does not change based in the state of the boost feature (enabled or
> disabled). But the scaling_max_frequency and scaling_min_frequency are
> updated based on the set of available + boost frequencies available.
>

Ah ok, sorry just glanced the code and misunderstood it. It make sense to update
only max_frequency.

Regards,
Sudeep