From: dawei chien <dawei.chien@mediatek.com>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Matthias Brugger <matthias.bgg@gmail.com>,
Daniel Kurtz <djkurtz@chromium.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Eddie Huang <eddie.huang@mediatek.com>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Howard Chen <howard.chen@linaro.org>,
Yingjoe Chen <yingjoe.chen@mediatek.com>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
linux-mediatek@lists.infradead.org, srv_heupstream@mediatek.com,
Sascha Hauer <kernel@pengutronix.de>
Subject: Re: thermal: mediatek: Add cpu power cooling model
Date: Tue, 8 Sep 2015 23:46:35 +0800 [thread overview]
Message-ID: <1441727195.20470.40.camel@mtksdaap41> (raw)
In-Reply-To: <20150907060931.GF26760@linux>
Hi Viresh,
On Mon, 2015-09-07 at 11:39 +0530, Viresh Kumar wrote:
> On 04-09-15, 17:01, Dawei Chien wrote:
> > Use Intelligent Power Allocation (IPA) technical to add
> > static/dynamic power model for binding CPU thermal zone.
> > The power allocator governor allocates power budget to control
> > CPU temperature.
>
> Sorry but this isn't enough really.. I don't have time to go through
> the code and understand the purpose of the series.
>
> Please explain here in detail:
> - Why this is needed.
Power Allocator governor is able to keep SOC temperature within a
defined temperature range to avoid SOC overheat and keep it's
performance. mt8173-cpufreq.c need to register its' own power model with
power allocator thermal governor, so that power allocator governor can
allocates suitable power budget to control CPU temperature.
> - What/How you are doing it.
Measure and create dynamic/static power model, and register cooling
device of_cpufreq_power_cooling_register for MT8173.
>
> (Don't resend, just reply to this email :) )
>
prev parent reply other threads:[~2015-09-08 15:46 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-04 9:01 thermal: mediatek: Add cpu power cooling model Dawei Chien
2015-09-04 9:01 ` [PATCH 2/2] arm64: dts: mt8173: Add thermal zone node for mt8173 Dawei Chien
2015-09-07 4:00 ` Daniel Kurtz
2015-09-07 4:05 ` Daniel Kurtz
2015-09-08 15:50 ` dawei chien
[not found] ` <1441357309-61669-1-git-send-email-dawei.chien-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2015-09-04 9:01 ` [PATCH 1/2] thermal: mediatek: Add cpu power cooling model Dawei Chien
2015-09-04 10:00 ` dawei chien
2015-09-07 6:09 ` Viresh Kumar
2015-09-08 15:46 ` dawei chien [this message]
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