From: khilman@kernel•org (Kevin Hilman)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH v9 4/6] ARM: Exynos: switch to using generic cpufreq driver for Exynos4210/5250/5420
Date: Thu, 04 Sep 2014 06:30:13 -0700 [thread overview]
Message-ID: <7hfvg74ioq.fsf@paris.lan> (raw)
In-Reply-To: <CAJuA9aiXwgxrS_AYw5tt5GryhrtoOpK2RhhLcjxShNqswiCmqA@mail.gmail.com> (Thomas Abraham's message of "Thu, 4 Sep 2014 15:52:38 +0530")
Thomas Abraham <ta.omasab@gmail•com> writes:
> On Thu, Sep 4, 2014 at 4:45 AM, Kevin Hilman <khilman@kernel•org> wrote:
>> Hi Thomas,
>>
>> Thomas Abraham <ta.omasab@gmail•com> writes:
>>
>> [...]
>>
>>> A new branch [1] has been created using commits from exynos5-v3.17-rc1
>>> branch + cpufreq + regulator + temp fixes. I have tested this branch
>>> on Exynos5800 Chromebook2 and cpufreq works fine with both ondemand
>>> and performance governors. Please let me know if there are any issues
>>> with this new branch. It is based on v3.17-rc3.
>>
>> Excellent! Thank you.
>>
>> The only thing missing now is the CPUidle support for 5800, and all
>> that's needed for that is the compatible string patch[1] which Daniel
>> has queued up.
>>
>> With that patch, display + CPUidle + CPUfreq are working pretty well on
>> my exynos5800/chromebook2 with the big.LITTLE switcher disabled. If I
>> turn on the switcher, it boots OK, but as soon as I try to run powertop
>> (upstream v2.6.1) it gets stuck. Have you tried this branch with the
>> switcher enabled?
>
> Yes, I have tested switcher + cpufreq + cpuidle with this branch and
> there are no issues found. I haven't tested with powertop yet. I will
> try and do that and let you know the result.
>
> You mentioned that when you run powertop, it gets stuck. When that
> happens, is there any log on the console or does system just turn
> unresponsive?
The console is not responsive, but kernel seems busy because I see
periodic timeout messages from the samsung clock driver.
Note that I see these messages when things are functioning normally
also.
Kevin
[1]
[ 337.832031] wait_until_divider_stable: timeout in divider stablization
[ 337.847024] wait_until_divider_stable: timeout in divider stablization
[ 337.862024] wait_until_divider_stable: timeout in divider stablization
[ 337.957028] wait_until_divider_stable: timeout in divider stablization
[ 337.972024] wait_until_divider_stable: timeout in divider stablization
[ 337.987024] wait_until_divider_stable: timeout in divider stablization
[ 340.082029] wait_until_divider_stable: timeout in divider stablization
[ 340.097024] wait_until_divider_stable: timeout in divider stablization
[ 340.112024] wait_until_divider_stable: timeout in divider stablization
[ 346.242030] wait_until_divider_stable: timeout in divider stablization
[ 346.257024] wait_until_divider_stable: timeout in divider stablization
[ 346.272024] wait_until_divider_stable: timeout in divider stablization
[ 348.322029] wait_until_divider_stable: timeout in divider stablization
[ 348.337025] wait_until_divider_stable: timeout in divider stablization
[ 348.352024] wait_until_divider_stable: timeout in divider stablization
next prev parent reply other threads:[~2014-09-04 13:30 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-30 8:07 [PATCH v9 0/6] cpufreq: use generic cpufreq drivers for exynos platforms Thomas Abraham
2014-07-30 8:07 ` [PATCH v9 1/6] clk: samsung: add infrastructure to register cpu clocks Thomas Abraham
2014-09-01 22:29 ` Mike Turquette
2014-09-02 13:53 ` Thomas Abraham
2014-07-30 8:07 ` [PATCH v9 2/6] clk: samsung: add cpu clock configuration data and instantiate cpu clock Thomas Abraham
2014-09-01 22:29 ` Mike Turquette
2014-07-30 8:07 ` [PATCH v9 3/6] ARM: dts: Exynos: add CPU OPP and regulator supply property Thomas Abraham
2014-07-30 11:28 ` Andreas Färber
2014-07-31 2:55 ` Thomas Abraham
2014-07-31 0:37 ` Doug Anderson
2014-07-31 3:21 ` Thomas Abraham
2014-07-31 3:53 ` Doug Anderson
2014-07-31 4:06 ` Thomas Abraham
2014-07-31 4:08 ` Doug Anderson
2014-07-31 4:18 ` Thomas Abraham
2014-08-02 3:49 ` Javier Martinez Canillas
2014-08-04 3:00 ` Thomas Abraham
2014-07-30 8:07 ` [PATCH v9 4/6] ARM: Exynos: switch to using generic cpufreq driver for Exynos4210/5250/5420 Thomas Abraham
2014-07-31 18:32 ` Kukjin Kim
2014-07-31 18:40 ` Tomasz Figa
2014-07-31 18:54 ` Tomasz Figa
2014-07-31 19:25 ` Thomas Abraham
2014-07-31 19:30 ` Tomasz Figa
2014-08-04 3:24 ` Thomas Abraham
2014-08-22 23:54 ` Kevin Hilman
2014-08-23 0:02 ` Tomasz Figa
2014-08-25 6:53 ` Lukasz Majewski
2014-08-25 12:15 ` Chander Kashyap
2014-08-25 15:32 ` Kevin Hilman
2014-08-25 15:56 ` Tomasz Figa
2014-08-26 4:54 ` Viresh Kumar
2014-08-26 5:25 ` Chander Kashyap
2014-08-26 15:15 ` Kevin Hilman
2014-08-26 22:25 ` Kevin Hilman
2014-08-29 12:52 ` Thomas Abraham
2014-08-29 15:03 ` Kevin Hilman
2014-09-01 8:47 ` Thomas Abraham
2014-09-02 19:32 ` Kevin Hilman
2014-09-03 4:26 ` Thomas Abraham
2014-09-03 13:18 ` Thomas Abraham
2014-09-03 23:15 ` Kevin Hilman
2014-09-04 10:22 ` Thomas Abraham
2014-09-04 13:30 ` Kevin Hilman [this message]
2014-09-05 13:41 ` Thomas Abraham
2014-08-25 8:11 ` Sjoerd Simons
2014-07-30 8:07 ` [PATCH v9 5/6] cpufreq: exynos: remove exynos4210/5250 specific cpufreq driver support Thomas Abraham
2014-07-30 8:07 ` [PATCH v9 6/6] clk: samsung: remove unused clock aliases and update clock flags Thomas Abraham
2014-07-31 14:13 ` Tomasz Figa
2014-07-31 18:24 ` Thomas Abraham
2014-07-31 18:35 ` Tomasz Figa
2014-07-31 18:41 ` Thomas Abraham
2014-07-31 18:46 ` Tomasz Figa
2014-07-31 18:49 ` Thomas Abraham
2014-09-01 22:31 ` Mike Turquette
2014-07-31 6:20 ` [PATCH v9 0/6] cpufreq: use generic cpufreq drivers for exynos platforms Chander M. Kashyap
2014-07-31 10:59 ` Thomas Abraham
2014-07-31 12:24 ` Chander M. Kashyap
2014-07-31 14:15 ` Tomasz Figa
2014-07-31 18:25 ` Thomas Abraham
2014-07-31 18:34 ` Thomas Abraham
2014-08-01 9:42 ` Viresh Kumar
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