lkml.org 
[lkml]   [2013]   [Aug]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] cpufreq: Tegra: remove target_cpu_speed[] array
On 08/21/2013 04:31 AM, Viresh Kumar wrote:
> Tegra's cpufreq driver was maintaining requested target frequencies in an array:
> target_cpu_speed. And then finally setting the highest requested freq in the
> core. This was probably done because both cores share clock line and logically
> we want to set both cores to the max frequency requested..
>
> But this wasn't required to be done in individual CPUFreq drivers, its already
> taken care of by CPUFreq governors. They evaluate load for all CPUs and finally
> call target only for the frequency corresponding to max load.
>
> So, get rid of this stuff from Tegra's cpufreq driver.
>
> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
> ---
> Hi Stephen,
>
> Its only build tested and depends on lots of stuff that I have already sent for
> cpufreq core and its drivers. All of that is pushed here:
> https://git.linaro.org/gitweb?p=people/vireshk/linux.git;a=shortlog;h=refs/heads/for-v3.13
>
> And only Tegra+cpufreq-core patches are pushed here (only 13 patches):
> https://git.linaro.org/gitweb?p=people/vireshk/linux.git;a=shortlog;h=refs/heads/cpufreq-next-tegra
>
> You can probably try cpufreq-next-tegra branch for testing on some real
> hardware.

Acked-by: Stephen Warren <swarren@nvidia.com>

I did test your branch on a Tegra20 and Tegra30 board without issues.
But recall that our cpufreq driver doesn't actually get initialized
since the conversion of Tegra to the common clock framework, so I
haven't really tested the cpufreq changes, except to ensure that nothing
in those branches breaks other basic functionality.


\
 
 \ /
  Last update: 2013-08-22 00:41    [W:0.038 / U:0.524 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site