linux-kernel - Re: [PATCH v2] arm64: dts: ls1088a: add one more thermal zone node

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Date:   Mon, 4 Mar 2019 14:53:03 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Andy Tang <andy.tang@....com>
Cc:     "mark.rutland@....com" <mark.rutland@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
        "daniel.lezcano@...aro.org" <daniel.lezcano@...aro.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Leo Li <leoyang.li@....com>,
        "edubezval@...il.com" <edubezval@...il.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "rui.zhang@...el.com" <rui.zhang@...el.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2] arm64: dts: ls1088a: add one more thermal zone node

On Mon, Mar 04, 2019 at 06:46:32AM +0000, Andy Tang wrote:
> 
> 
> > -----Original Message-----
> > From: Shawn Guo <shawnguo@...nel.org>
> > Sent: 2019年3月4日 14:21
> > 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: Re: [PATCH v2] arm64: dts: ls1088a: add one more thermal zone node
> > 
> > On Mon, Mar 04, 2019 at 11:21:11AM +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>
> > > ---
> > > v2:
> > > 	- Add more information about sensors to description
> > > PS: In order to keep consistency to the first thermal-zone node, there
> > > will be "WARNING: line over 80 characters" warnings.
> > >
> > >  arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi |   43
> > +++++++++++++++++++++--
> > >  1 files changed, 39 insertions(+), 4 deletions(-)
> > >
> > > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > index 661137f..9f52bc9 100644
> > > --- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > +++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > @@ -129,19 +129,19 @@
> > >  	};
> > >
> > >  	thermal-zones {
> > > -		cpu_thermal: cpu-thermal {
> > > +		ccu {
> > 
> > Is this change really necessary?  What does 'ccu' stand for?
> I think so. ccu stands for core cluster unit. cpu is too general.
> On some platforms, there are more than one core clusters.
> At least we should change it to "core cluster" if short form is not appropriate.

Yes, please give it a more descriptive name.

Shawn