lkml.org 
[lkml]   [2014]   [Nov]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 5/8] thermal:cpu cooling:tegra: Provide deferred probing for tegra driver
On 11/17/2014 01:43 PM, Thierry Reding wrote:
> On Fri, Nov 14, 2014 at 12:47:33PM +0200, Mikko Perttunen wrote:
>> Tested-by: Mikko Perttunen <mikko.perttunen@kapsi.fi>
>>
>> One potential issue I can see is that if the cpufreq driver fails to probe
>> then you'll never get the thermal driver either. For example, Tegra124
>> currently has no cpufreq driver, so if CONFIG_CPU_THERMAL was enabled, then
>> the soctherm driver would never be able to probe. But I don't really have a
>> solution for this either.
>
> It doesn't seem like there's any code whatsoever to deal with cpufreq
> within the soctherm driver, so deferring probe based on something we're
> not using anyway seems rather useless.
>
> Thierry
>

My understanding is that there needs to be no code inside soctherm to
handle it, as the cpufreq driver (cpufreq-dt) will register a cooling
device that will then be bound to the soctherm sensors using the
of-thermal device tree properties. At this moment, however, we don't
have that cpufreq driver so this patch is still useless for Tegra.

Mikko



\
 
 \ /
  Last update: 2014-11-17 14:21    [W:0.113 / U:1.312 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site