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Re: [PATCH V3 3/9] cpufreq: Cap the default transition delay value to 10 ms

Started byViresh Kumar <viresh.kumar@linaro.org>
First post2017-08-16 08:40 +0200
Last post2017-08-17 05:40 +0200
Articles 2 — 1 participant

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  Re: [PATCH V3 3/9] cpufreq: Cap the default transition delay value  to 10 ms Viresh Kumar <viresh.kumar@linaro.org> - 2017-08-16 08:40 +0200
    Re: [PATCH V3 3/9] cpufreq: Cap the default transition delay value  to 10 ms Viresh Kumar <viresh.kumar@linaro.org> - 2017-08-17 05:40 +0200

#1712719 — Re: [PATCH V3 3/9] cpufreq: Cap the default transition delay value to 10 ms

FromViresh Kumar <viresh.kumar@linaro.org>
Date2017-08-16 08:40 +0200
SubjectRe: [PATCH V3 3/9] cpufreq: Cap the default transition delay value to 10 ms
Message-ID<uf09I-3AX-9@gated-at.bofh.it>
On 28-07-17, 10:58, Viresh Kumar wrote:
> At this point I really feel that this is a hardware specific problem
> and it was working by chance until now. And I am not sure if we
> shouldn't be stopping this patch from getting merged just because of
> that.
> 
> At least you can teach your distribution to go increase the sampling
> rate from userspace to make it all work.

Its been 3 weeks since my last email on this thread and no reply yet
from any of the IMX maintainers. Can someone please help here ?

@Shawn: Can you help debugging a bit here, to see what's get screwed
up due to this commit ? Its just that your platform isn't able to
change freq at 10 ms rate.

@Rafael: I am not sure, but should we be stopping this patch because
some hardware isn't able to change freq at 10ms interval and is just
faking the transition delay to start with ?

Maybe we get this merged again and the IMX guys can figure out what's
wrong on their platform and how to fix it ?

-- 
viresh

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#1713501

FromViresh Kumar <viresh.kumar@linaro.org>
Date2017-08-17 05:40 +0200
Message-ID<ufjP3-7vK-3@gated-at.bofh.it>
In reply to#1712719
On 16-08-17, 12:42, Leonard Crestez wrote:
> I reported the initial issue but did not have the time to do a more
> thorough investigation, this is more complicated than it seems. I said
> this before but maybe it got lost:
> 
> I don't think the odd behavior I noticed justifies keeping the patch
> from merging.

Thanks for that.

I will resend this patch now.

-- 
viresh

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