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Date: Thu, 12 Mar 2015 14:52:51 +0530
Message-ID: <CAKohpon-zbFdymPvzcAf0OK1wuCq_ShbdFKFXySb-ToMpZCMEg@mail.gmail.com>
Subject: Re: [PATCH] clk: mediatek: Export CPU mux clocks for CPU frequency control
From: Viresh Kumar <viresh.kumar@linaro.org>
To: Mike Turquette <mturquette@linaro.org>,
        Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: Sascha Hauer <s.hauer@pengutronix.de>,
        Pi-Cheng Chen <pi-cheng.chen@linaro.org>,
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        Kumar Gala <galak@codeaurora.org>,
        Henry Chen <henryc.chen@mediatek.com>,
        James Liao <jamesjj.liao@mediatek.com>,
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On 11 March 2015 at 05:29, Mike Turquette <mturquette@linaro.org> wrote:
> I assume you are saying that you want to update loops-per-jiffie while
> at an intermediate frequency. Why? This operation should not take very
> long.
>
> Imagine a (hypothetical?) processor that changes frequency in many small
> steps until it converges to the target rate. Would you want to update
> lpj for every step?

That's why I have asked Russell specifically about this but haven't got a reply
yet. But it looks wrong to me as well now.. Probably we don't need to care
about it at all..