Re: [RFC PATCH 0/5] Frequency resolution in CCF vs. cpufreq

From: Nishanth Menon
Date: Thu May 15 2014 - 08:14:39 EST


On Thu, May 15, 2014 at 2:47 AM, Uwe Kleine-KÃnig
<u.kleine-koenig@xxxxxxxxxxxxxx> wrote:
[...]
>> cpufreq, which simply divides values it obtains through clk_round_rate() by
>> 1000, 666666.
>> Since passing 666666 to clk_round_rate() does not result in 666666660
>> (clk_round_rate() always rounds down!), we chose to put 666667 in the OPP. This
> What is OPP?

Operating Performance Point (Documentation/power/opp.txt describes
frequencies in Hz, the bindings we chose in the community
Documentation/devicetree/bindings/power/opp.txt describes it in KHz).

Regards,
Nishanth Menon
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