linux-kernel - Re: [PATCH v3 2/2] arm64: dts: mt8173: Add thermal zone node for mt8173.

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Message-ID: <1446461487.10039.33.camel@mtksdaap41>
Date:	Mon, 2 Nov 2015 18:51:27 +0800
From:	dawei chien <dawei.chien@...iatek.com>
To:	Viresh Kumar <viresh.kumar@...aro.org>
CC:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	"Kumar Gala" <galak@...eaurora.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	Daniel Kurtz <djkurtz@...omium.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	<devicetree@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <linux-pm@...r.kernel.org>,
	<linux-mediatek@...ts.infradead.org>,
	<srv_heupstream@...iatek.com>, Sascha Hauer <kernel@...gutronix.de>
Subject: Re: [PATCH v3 2/2] arm64: dts: mt8173: Add thermal zone node for
 mt8173.

On Wed, 2015-10-28 at 21:09 +0530, Viresh Kumar wrote:
> On 22-10-15, 20:02, Dawei Chien wrote:
> > Add thermal zone node to mt8173.dtsi.
> > 
> > Signed-off-by: Dawei Chien <dawei.chien@...iatek.com>
> > ---
> > This patch is base on
> > https://patchwork.kernel.org/patch/7249821/
> > https://patchwork.kernel.org/patch/7249861/
> > https://patchwork.kernel.org/patch/7249891/
> > ---
> >  arch/arm64/boot/dts/mediatek/mt8173.dtsi |   90 ++++++++++++++++++++++++++++++
> >  1 file changed, 90 insertions(+)
> > 
> > diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> > index 3b18f37..eaf12bf 100644
> > --- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> > +++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> > @@ -16,6 +16,7 @@
> >  #include <dt-bindings/interrupt-controller/arm-gic.h>
> >  #include <dt-bindings/power/mt8173-power.h>
> >  #include <dt-bindings/reset-controller/mt8173-resets.h>
> > +#include <dt-bindings/thermal/mt8173.h>
> >  #include "mt8173-pinfunc.h"
> >  
> >  / {
> > @@ -54,6 +55,18 @@
> >  			reg = <0x000>;
> >  			enable-method = "psci";
> >  			cpu-idle-states = <&CPU_SLEEP_0>;
> > +			static-power-points = <
> > +				859000  43
> > +				908000  52
> > +				983000  86
> > +				1009000 123
> > +				1028000 138
> > +				1083000 172
> > +				1110900 180
> > +				1125000 192
> 
> What's the unit of power here? Is this power accurate? Or just a
> number representing the power ?

The unit is mW. This power was measured by tools, but it may be not
accurate enough since this tool has a error range.

> > +			>;
> > +			dynamic-power-coefficient = <263>;
> > +			#cooling-cells = <2>;
> >  		};
> 
> @Rob: Looks like another good candidate for the OPP-v2 table? Power.
> 


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