linux-kernel - Re: [PATCH 1/3] hwmon: Add thermal sensor driver for Surface Aggregator Module

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Date: Sat, 30 Mar 2024 04:58:27 -0700
From: Guenter Roeck <linux@...ck-us.net>
To: Maximilian Luz <luzmaximilian@...il.com>, Jean Delvare
 <jdelvare@...e.com>, Ilpo Järvinen
 <ilpo.jarvinen@...ux.intel.com>, Hans de Goede <hdegoede@...hat.com>
Cc: Ivor Wanders <ivor@...nders.net>, linux-kernel@...r.kernel.org,
 platform-driver-x86@...r.kernel.org, linux-hwmon@...r.kernel.org
Subject: Re: [PATCH 1/3] hwmon: Add thermal sensor driver for Surface
 Aggregator Module

On 3/30/24 04:24, Maximilian Luz wrote:
> Some of the newer Microsoft Surface devices (such as the Surface Book
> 3 and Pro 9) have thermal sensors connected via the Surface Aggregator
> Module (the embedded controller on those devices). Add a basic driver
> to read out the temperature values of those sensors.
> 
> Link: https://github.com/linux-surface/surface-aggregator-module/issues/59
> Signed-off-by: Maximilian Luz <luzmaximilian@...il.com>

I very much dislike the idea of having multiple drivers for hardware
monitoring on the same system. Please explain in detail why this and
the fan driver for the same system need separate drivers.

I'll also very much want to know if we will see submissions for separate
voltage, current, power, energy, humidity, and/or other hardware monitoring
entities for the same system later on.

Guenter