On Thu, Sep 4, 2014 at 4:45 AM, Kevin Hilman [off-list ref] wrote:

Hi Thomas,

Thomas Abraham [off-list ref] writes:

[...]

quoted

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?

Thanks,
Thomas.

Thanks again for your work on this, we're getting close!

Kevin

[1] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-August/279028.html