linux-kernel - Re: [PATCH v3 09/14] platform/x86: acerhdf: Use the .should

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Message-ID: <43c8dade-4b6e-426b-bde7-769b50383145@linaro.org>
Date: Wed, 21 Aug 2024 15:25:48 +0200
From: Daniel Lezcano <daniel.lezcano@...aro.org>
To: "Rafael J. Wysocki" <rjw@...ysocki.net>,
 Linux PM <linux-pm@...r.kernel.org>
Cc: LKML <linux-kernel@...r.kernel.org>, Lukasz Luba <lukasz.luba@....com>,
 Zhang Rui <rui.zhang@...el.com>, Hans de Goede <hdegoede@...hat.com>,
 Peter Kaestle <peter@...e.net>, platform-driver-x86@...r.kernel.org
Subject: Re: [PATCH v3 09/14] platform/x86: acerhdf: Use the .should_bind()
 thermal zone callback

On 19/08/2024 18:19, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> 
> Make the acerhdf driver use the .should_bind() thermal zone
> callback to provide the thermal core with the information on whether or
> not to bind the given cooling device to the given trip point in the
> given thermal zone.  If it returns 'true', the thermal core will bind
> the cooling device to the trip and the corresponding unbinding will be
> taken care of automatically by the core on the removal of the involved
> thermal zone or cooling device.
> 
> The previously existing acerhdf_bind() function bound cooling devices
> to thermal trip point 0 only, so the new callback needs to return 'true'
> for trip point 0.  However, it is straightforward to observe that trip
> point 0 is an active trip point and the only other trip point in the
> driver's thermal zone is a critical one, so it is sufficient to return
> 'true' from that callback if the type of the given trip point is
> THERMAL_TRIP_ACTIVE.
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> Acked-by: Hans de Goede <hdegoede@...hat.com>

Reviewed-by: Daniel Lezcano <daniel.lezcano@...aro.org>


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