linux-kernel - RE: [PATCH v7 RESEND 2/3] thermal: exynos_tmu: Support new hardware and update TMU interface

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Message-ID: <000001dc5d32$2b4bfb20$81e3f160$@samsung.com>
Date: Mon, 24 Nov 2025 20:04:53 +0900
From: 손신 <shin.son@...sung.com>
To: "'Daniel Lezcano'" <daniel.lezcano@...aro.org>, "'Bartlomiej
 Zolnierkiewicz'" <bzolnier@...il.com>, "'Krzysztof Kozlowski'"
	<krzk@...nel.org>, "'Rafael J . Wysocki'" <rafael@...nel.org>, "'Zhang Rui'"
	<rui.zhang@...el.com>, "'Lukasz	Luba'" <lukasz.luba@....com>, "'Rob
	Herring'" <robh@...nel.org>, "'Conor Dooley'" <conor+dt@...nel.org>, "'Alim
	Akhtar'" <alim.akhtar@...sung.com>
Cc: "'Henrik Grimler'" <henrik@...mler.se>, <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>,
	<shin.son@...sung.com>
Subject: RE: [PATCH v7 RESEND 2/3] thermal: exynos_tmu: Support new hardware
 and update TMU interface

Hello, Daniel Lezcano.

> On 11/24/25 11:06, 손신 wrote:
> [ ... ]
> 
> > However, since ExynosAutov920 diverges significantly from the existing
> > driver, Would introducing a separate driver instead of unifying
> everything be acceptable?
> 
> So this driver is one controller for multiple sensors while the others
> drivers are one controller for one sensor, right ?
> 

Yes. As far as I understand, the previous Exynos variants used one TMU controller per sensor,
while on ExynosAutoV920 the hardware has multiple TMU instances and each instance contains multiple sensors.
Therefore, this new automotive SoC requires supporting multiple sensors behind a single TMU controller.

Best regards,
Shin