From mboxrd@z Thu Jan  1 00:00:00 1970
From: Javi Merino <javi.merino@arm.com>
Subject: Re: [PATCH v11 0/4] thermal: samsung: Clean up and add support for
 Exynos5420
Date: Tue, 8 Apr 2014 10:33:43 +0100
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To: Naveen Krishna Ch <naveenkrishna.ch@gmail.com>
Cc: Tomasz Figa <t.figa@samsung.com>, Leela Krishna Amudala <leelakrishna.a@gmail.com>, Naveen Krishna Chatradhi <ch.naveen@samsung.com>, "linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>, "rui.zhang@intel.com" <rui.zhang@intel.com>, "eduardo.valentin@ti.com" <eduardo.valentin@ti.com>, linux-samsung-soc <linux-samsung-soc@vger.kernel.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, "amit.daniel@samsung.com" <amit.daniel@samsung.com>, Kukjin Kim <kgene.kim@samsung.com>, "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>, Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>, "cpgs ." <cpgs@samsung.com>
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On Thu, Mar 20, 2014 at 02:45:54AM +0000, Naveen Krishna Ch wrote:
> Hello Tomasz,
> 
> On 20 March 2014 00:58, Tomasz Figa <t.figa@samsung.com> wrote:
> > Hi Leela,
> >
> >
> > On 19.03.2014 12:19, Leela Krishna Amudala wrote:
> >>
> >> Hi All,
> >>
> >> I didn't see this series in mainline, Any comments for this ?
> >
> >
> > Naveen had posted v12 of this series and I believe all the patches got my
> > Reviewed-by.
> >
> > Best regards,
> > Tomasz
> Thanks for your reply.
> These patches are posted to the mailing list quite some time now.
> Anything i can do to speed up the process.

These patches create 5 thermal zones, one for each sensor.  Due to the
way the exynos code in drivers/thermal/samsung/exynos_thermal_common.c
registers thermal zones, each one gets a cpufreq_cooling_device.
Therefore you end up with 5 thermal zone each of which is controlling
the cpu frequency.

Wouldn't it be better to collate these 5 sensors to create one thermal
zone for the whole SoC?  Maybe a simplistic algorithm like reporting
the maximum temperature of all the sensors as the thermal zone
temperature is good enough.

Cheers,
Javi