linux-kernel - RE: [PATCH 01/22] dt-bindings: thermal: samsung,exynos: specify cells

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Date: Mon, 24 Jun 2024 09:36:22 +0530
From: "Alim Akhtar" <alim.akhtar@...sung.com>
To: "'Krzysztof Kozlowski'" <krzk@...nel.org>, "'Krzysztof Kozlowski'"
	<krzysztof.kozlowski@...aro.org>, "'Daniel Lezcano'"
	<daniel.lezcano@...aro.org>, "'Zhang Rui'" <rui.zhang@...el.com>, "'Lukasz
 Luba'" <lukasz.luba@....com>, "'Rob Herring'" <robh@...nel.org>, "'Conor
 Dooley'" <conor+dt@...nel.org>, "'Guillaume La Roque'"
	<glaroque@...libre.com>, "'Krzysztof Kozlowski'" <krzk+dt@...nel.org>,
	"'Vasily Khoruzhick'" <anarsoul@...il.com>, "'Chen-Yu Tsai'"
	<wens@...e.org>, "'Jernej Skrabec'" <jernej.skrabec@...il.com>, "'Samuel
 Holland'" <samuel@...lland.org>, "'Shawn	Guo'" <shawnguo@...nel.org>,
	"'Sascha Hauer'" <s.hauer@...gutronix.de>, "'Pengutronix Kernel Team'"
	<kernel@...gutronix.de>, "'Fabio Estevam'" <festevam@...il.com>, "'Anson
 Huang'" <Anson.Huang@....com>, "'Thierry Reding'"
	<thierry.reding@...il.com>, "'Jonathan Hunter'" <jonathanh@...dia.com>,
	"'Dmitry Baryshkov'" <dmitry.baryshkov@...aro.org>, "'Amit Kucheria'"
	<amitk@...nel.org>, 'Niklas Söderlund'
	<niklas.soderlund@...natech.se>, "'Heiko Stuebner'" <heiko@...ech.de>,
	"'Biju	Das'" <biju.das.jz@...renesas.com>, "'Orson Zhai'"
	<orsonzhai@...il.com>, "'Baolin Wang'" <baolin.wang@...ux.alibaba.com>,
	"'Chunyan Zhang'" <zhang.lyra@...il.com>, "'Alexandre Torgue'"
	<alexandre.torgue@...s.st.com>, "'Pascal Paillet'" <p.paillet@...s.st.com>,
	"'Keerthy'" <j-keerthy@...com>, "'Broadcom internal kernel review list'"
	<bcm-kernel-feedback-list@...adcom.com>, "'Florian Fainelli'"
	<florian.fainelli@...adcom.com>, "'Scott Branden'" <sbranden@...adcom.com>,
	"'zhanghongchen'" <zhanghongchen@...ngson.cn>, "'Matthias Brugger'"
	<matthias.bgg@...il.com>, "'AngeloGioacchino Del Regno'"
	<angelogioacchino.delregno@...labora.com>, "'Bjorn Andersson'"
	<andersson@...nel.org>, "'Geert Uytterhoeven'" <geert+renesas@...der.be>
Cc: <linux-pm@...r.kernel.org>, <linux-samsung-soc@...r.kernel.org>,
	<devicetree@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <linux-amlogic@...ts.infradead.org>,
	<linux-sunxi@...ts.linux.dev>, <imx@...ts.linux.dev>,
	<linux-tegra@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
	<linux-renesas-soc@...r.kernel.org>, <linux-rockchip@...ts.infradead.org>,
	<linux-stm32@...md-mailman.stormreply.com>, "'Florian Fainelli'"
	<f.fainelli@...il.com>, <linux-rpi-kernel@...ts.infradead.org>,
	<linux-mediatek@...ts.infradead.org>, <cpgs@...sung.com>
Subject: RE: [PATCH 01/22] dt-bindings: thermal: samsung,exynos: specify
 cells



> -----Original Message-----
> From: Krzysztof Kozlowski <krzk@...nel.org>
> Sent: Saturday, June 15, 2024 3:09 PM
> To: Alim Akhtar <alim.akhtar@...sung.com>; 'Krzysztof Kozlowski'
> <krzysztof.kozlowski@...aro.org>; 'Daniel Lezcano'
[snip]
> On 14/06/2024 16:29, Alim Akhtar wrote:
> > Hi Krzysztof,
> >
> >> -----Original Message-----
> >> From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> >> Sent: Friday, June 14, 2024 3:16 PM
> >> To: Daniel Lezcano <daniel.lezcano@...aro.org
> > .stormreply.com;
> >> Subject: [PATCH 01/22] dt-bindings: thermal: samsung,exynos: specify
> >> cells
> >>
> >> All Samsung Exynos SoCs Thermal Management Units have only one
> >> sensor, so make '#thermal-sensor-cells' fixed at 0.
> >>
> > This is not entirely true, there are SoCs which have multiple temp sensors.
> > It is true that currently only one sensor support is added though.
> 
> All supported by mainline. Others do not exist now :)
> 
> >
> > So we can leave this as is or you suggest to make it to support only
> > one sensor (to match the current DT support), and later (in near
> > future) change it again to match what HW actually support?
> 
> Yes, different devices can have different value (and bindings).
Ok, this is fine for now.

> Best regards,
> Krzysztof