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From: Daniel Lezcano <daniel.lezcano@linaro.org>
To: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Rob Herring <robh@kernel.org>,
	linux-pm@vger.kernel.org, Zhang Rui <rui.zhang@intel.com>,
	Lukasz Luba <lukasz.luba@arm.com>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
	<devicetree@vger.kernel.org>,
	open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] thermal/core: Introduce user trip points
Date: Tue, 2 Jul 2024 18:31:52 +0200	[thread overview]
Message-ID: <2a8f5b5f-b67a-4bd0-afe9-f09473aea2d5@linaro.org> (raw)
In-Reply-To: <CAJZ5v0jV+0bWqpCR1Q2rYLJvx0J6hgExzRks6YDPL9gX_HK0rA@mail.gmail.com>

On 02/07/2024 13:03, Rafael J. Wysocki wrote:

[ ... ]

>>> Trips cannot be created on the fly ATM.
>>>
>>> What can be done is to create trips that are invalid to start with and
>>> then set their temperature via sysfs.  This has been done already for
>>> quite a while AFAICS.
>>
>> Yes, I remember that.
>>
>> I would like to avoid introducing more weirdness in the thermal
>> framework which deserve a clear ABI.
>>
>> What is missing to create new trip points on the fly ?
> 
> A different data structure to store them (essentially, a list instead
> of an array).
> 
> I doubt it's worth the hassle.
> 
> What's wrong with the current approach mentioned above?  It will need
> to be supported going forward anyway.

So when the "user trip point" option will be set, a thermal zone will 
have ~ten(?) user trip points initialized to an invalid temperature ?


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  parent reply	other threads:[~2024-07-02 16:31 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-06-27  8:54 [PATCH] thermal/core: Introduce user trip points Daniel Lezcano
2024-06-28 13:56 ` Rafael J. Wysocki
2024-07-01 13:17   ` Daniel Lezcano
2024-07-01 13:36     ` Rafael J. Wysocki
2024-07-01 15:13   ` Daniel Lezcano
2024-07-01 15:47     ` Rafael J. Wysocki
2024-07-01 15:50       ` Daniel Lezcano
2024-07-01 16:26 ` Rob Herring
2024-07-02  9:29   ` Daniel Lezcano
2024-07-02 10:22     ` Rafael J. Wysocki
2024-07-02 10:56       ` Daniel Lezcano
2024-07-02 11:03         ` Rafael J. Wysocki
2024-07-02 11:17           ` Rafael J. Wysocki
2024-07-02 16:31           ` Daniel Lezcano [this message]
2024-07-02 17:15             ` Rafael J. Wysocki
2024-07-02 22:49               ` Daniel Lezcano
2024-07-03 11:20                 ` Rafael J. Wysocki

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