linux-kernel - Re: [PATCH 0/5] thermal: multi-sensor aggregation support

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Message-ID: <20d3a0be-ba5f-439f-80ff-2e2bda3bb144@linaro.org>
Date: Fri, 29 Nov 2024 21:00:39 +0100
From: Daniel Lezcano <daniel.lezcano@...aro.org>
To: Nicolas Pitre <nico@...xnic.net>, "Rafael J . Wysocki"
 <rafael@...nel.org>, linux-pm@...r.kernel.org,
 linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, Nicolas Pitre <npitre@...libre.com>,
 Alexandre Bailon <abailon@...libre.com>
Subject: Re: [PATCH 0/5] thermal: multi-sensor aggregation support

On 12/11/2024 06:19, Nicolas Pitre wrote:
> This series provides support for thermal aggregation of multiple sensors.
> The "one sensor per zone" model is preserved for all its advantages.
> Aggregation is performed via the creation of a special zone whose purpose
> consists in aggregating its associated primary zones using a weighted
> average.
> 
> Motivation for this work stems from use cases where multiple sensors are
> contained within the same performance domain. In such case it is preferable
> to apply thermal mitigation while considering all such sensors as a whole.

Do we have a real use case where we can compare the per sensor vs 
aggregated sensors approach ?



> Previous incarnation by Alexandre Bailon can be found here:
> https://patchwork.kernel.org/project/linux-pm/cover/20240613132410.161663-1-abailon@baylibre.com/
> 
> diffstat:
>   .../bindings/thermal/thermal-zones.yaml       |   5 +-
>   arch/arm64/boot/dts/mediatek/mt8195.dtsi      | 210 +-----
>   drivers/thermal/Kconfig                       |  27 +
>   drivers/thermal/thermal_core.c                | 643 ++++++++++++++++++
>   drivers/thermal/thermal_core.h                |  14 +
>   drivers/thermal/thermal_of.c                  |  86 ++-
>   6 files changed, 780 insertions(+), 205 deletions(-)


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