Re: omap voltage management

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On 04/06/2015 06:42 AM, Ryan wrote:
On Wed, Apr 1, 2015 at 7:17 PM, Nishanth Menon <nm@xxxxxx> wrote:
On 04/01/2015 08:18 AM, Ryan wrote:
Hi,

I would like to ask a related question here
Please try not to top post :).


If i use performance governor alone - constantly running at the
highest frequency. Does the smart reflex still has a role to play?
Yes. cpufreq governor are just policies - cpufreq policies just
selects a frequency to run the CPU from a list of frequencies. for
each frequency to be achieved, there is ABB, AVS configuration needed
(strategy specific to SoC).

I was trying to find out where exactly the voltages for core and IVA
are set in the code.

The generic layer for dvfs is yet to be implemented in k.org.

Are they set whenever for every frequency change? - I see that the

yes.

table is divided into OPP50, OPP100 and
so on but was not able to trace the entire path.

Also, does smartreflex framework uses the same path to change the
voltages (omap446x_vdd_core_volt_data,
omap446x_vdd_core_volt_data)

4460 on Panda-es does not have an implementation yet.
--
Regards,
Nishanth Menon

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