linux-kernel - Re: 2.6.22-rc1-mm1 [cannot change thermal trip points]

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Message-ID: <20070604091331.GB4802@suse.de>
Date:	Mon, 4 Jun 2007 11:13:31 +0200
From:	Stefan Seyfried <seife@...e.de>
To:	Pavel Machek <pavel@....cz>
Cc:	Matthew Garrett <mjg59@...f.ucam.org>, Len Brown <lenb@...nel.org>,
	trenn@...e.de, Chuck Ebbert <cebbert@...hat.com>,
	len.brown@...el.com, Maciej Rutecki <maciej.rutecki@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
	torvalds@...ux-foundation.org
Subject: Re: 2.6.22-rc1-mm1 [cannot change thermal trip points]

On Tue, May 22, 2007 at 11:06:36AM +0200, Pavel Machek wrote:
 
> We need to ignore trip point updates from BIOS, and we need to poll
> thermals when use overrides trip points. That's expected. Plus I've
> yet to see platform actually updating the trip points.

Thinkpad 600, whenever a trip point is crossed, all trip points are updated.
I think they implemented hysteresis that way.
ISTR that hp nx5000 did something similar, but i might be wrong on this one.
-- 
Stefan Seyfried
QA / R&D Team Mobile Devices        |              "Any ideas, John?"
SUSE LINUX Products GmbH, Nürnberg  | "Well, surrounding them's out." 

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