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

Sudeep Holla Sudeep.Holla at arm.com
Fri Feb 7 13:02:53 EST 2014


On 07/02/14 17:37, Nishanth Menon wrote:
> On Fri, Feb 7, 2014 at 11:31 AM, Sudeep Holla <Sudeep.Holla at 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.

Intuitively the list without boost shouldn't have any frequency above the range
when it's enabled :), that's what I was referring to. So I am not talking about
any issue with user-space maintenance.

Regards,
Sudeep




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