linux-kernel - RE: [EXT] Re: [PATCH v6] arm64: dts: ls1088a: add one more thermal zone node

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Date:   Fri, 10 May 2019 03:40:57 +0000
From:   Andy Tang <andy.tang@....com>
To:     Shawn Guo <shawnguo@...nel.org>
CC:     Leo Li <leoyang.li@....com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
        "daniel.lezcano@...aro.org" <daniel.lezcano@...aro.org>,
        "rui.zhang@...el.com" <rui.zhang@...el.com>,
        "edubezval@...il.com" <edubezval@...il.com>
Subject: RE: [EXT] Re: [PATCH v6] arm64: dts: ls1088a: add one more thermal
 zone node

> -----Original Message-----
> From: Shawn Guo <shawnguo@...nel.org>
> Sent: 2019年5月10日 11:14
> To: Andy Tang <andy.tang@....com>
> Cc: Leo Li <leoyang.li@....com>; robh+dt@...nel.org;
> mark.rutland@....com; linux-arm-kernel@...ts.infradead.org;
> devicetree@...r.kernel.org; linux-kernel@...r.kernel.org;
> linux-pm@...r.kernel.org; daniel.lezcano@...aro.org; rui.zhang@...el.com;
> edubezval@...il.com
> Subject: [EXT] Re: [PATCH v6] arm64: dts: ls1088a: add one more thermal
> zone node
> 
> Caution: EXT Email
> 
> On Tue, Apr 23, 2019 at 10:25:07AM +0800, Yuantian Tang wrote:
> > Ls1088a has 2 thermal sensors, core cluster and SoC platform. Core
> > cluster sensor is used to monitor the temperature of core and SoC
> > platform is for platform. The current dts only support the first sensor.
> > This patch adds the second sensor node to dts to enable it.
> >
> > Signed-off-by: Yuantian Tang <andy.tang@....com>
> > ---
> > v6:
> >         - add cooling device map to cpu0-7 in platform node.
I like to explain a little. I think it makes sense that multiple thermal zone map to same cooling device. 
In this way, no matter which thermal zone raises a temp alarm, it can call cooling device to chill out.
I also asked cpufreq maintainer about the cooling map issue, he think it would be fine.
I have tested and no issue found. 

Daniel, what's your thought?

Thanks,
Andy
> 
> @Daniel, are you fine with this version?
> 
> Shawn

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