linux-kernel - Re: [PATCH 3/3] hwmon: (cros_ec) register fans into thermal framework cooling devices

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Message-ID: <ec2f7e54-0582-475d-af91-42d9be65cd3e@t-8ch.de>
Date: Tue, 29 Apr 2025 22:45:56 +0200
From: Thomas Weißschuh <linux@...ssschuh.net>
To: lschyi@...omium.org
Cc: Benson Leung <bleung@...omium.org>, 
	Guenter Roeck <groeck@...omium.org>, Jean Delvare <jdelvare@...e.com>, 
	Guenter Roeck <linux@...ck-us.net>, Jonathan Corbet <corbet@....net>, 
	chrome-platform@...ts.linux.dev, linux-kernel@...r.kernel.org, linux-hwmon@...r.kernel.org, 
	linux-doc@...r.kernel.org, Sung-Chi Li <lschyi@...gle.com>
Subject: Re: [PATCH 3/3] hwmon: (cros_ec) register fans into thermal
 framework cooling devices

On 2025-04-29 16:14:23+0800, Sung-Chi Li via B4 Relay wrote:
> From: Sung-Chi Li <lschyi@...omium.org>
> 
> Register fans connected under EC as thermal cooling devices as well, so
> these fans can then work with the thermal framework.
> 
> During the driver probing phase, we will also try to register each fan
> as a thermal cooling device based on previous probe result (whether the
> there are fans connected on that channel, and whether EC supports fan
> control). The basic get max state, get current state, and set current
> state methods are then implemented as well.

There is also HWMON_C_REGISTER_TZ, however it depends on OF.
But this patch looks very generic, so maybe it makes sense to implement
it in the hwmon core.

> Signed-off-by: Sung-Chi Li <lschyi@...omium.org>
> ---
>  Documentation/hwmon/cros_ec_hwmon.rst |  2 +
>  drivers/hwmon/cros_ec_hwmon.c         | 72 +++++++++++++++++++++++++++++++++++
>  2 files changed, 74 insertions(+)

<snip>