linux-kernel - Re: [PATCH v2 1/7] dt-bindings: thermal: Add Google GS101 TMU

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Message-ID: <20260121-stoic-lavender-okapi-c27c51@quoll>
Date: Wed, 21 Jan 2026 08:52:37 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Tudor Ambarus <tudor.ambarus@...aro.org>
Cc: "Rafael J. Wysocki" <rafael@...nel.org>, 
	Daniel Lezcano <daniel.lezcano@...aro.org>, Zhang Rui <rui.zhang@...el.com>, 
	Lukasz Luba <lukasz.luba@....com>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Alim Akhtar <alim.akhtar@...sung.com>, Bartlomiej Zolnierkiewicz <bzolnier@...il.com>, 
	Kees Cook <kees@...nel.org>, "Gustavo A. R. Silva" <gustavoars@...nel.org>, 
	Peter Griffin <peter.griffin@...aro.org>, André Draszik <andre.draszik@...aro.org>, 
	willmcvicker@...gle.com, jyescas@...gle.com, shin.son@...sung.com, 
	linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
	linux-hardening@...r.kernel.org
Subject: Re: [PATCH v2 1/7] dt-bindings: thermal: Add Google GS101 TMU

On Mon, Jan 19, 2026 at 12:08:47PM +0000, Tudor Ambarus wrote:
> Document the Thermal Management Unit (TMU) found on the Google GS101 SoC.
> 
> The GS101 TMU utilizes a hybrid control model shared between the
> Application Processor (AP) and the ACPM (Alive Clock and Power Manager)
> firmware.
> 
> While the TMU is a standard memory-mapped IP block, on this platform
> the AP's direct register access is restricted to the interrupt pending
> (INTPEND) registers for event identification. High-level functional
> tasks, such as sensor initialization, threshold programming, and
> temperature reads, are delegated to the ACPM firmware.
> 
> Signed-off-by: Tudor Ambarus <tudor.ambarus@...aro.org>
> ---
>  .../bindings/thermal/google,gs101-tmu-top.yaml     | 67 ++++++++++++++++++++++
>  1 file changed, 67 insertions(+)

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>

Best regards,
Krzysztof