From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Eugeny S. Mints" Subject: Re: nokia 770 [was Re: community PM requirements/issues and PowerOP] Date: Wed, 13 Dec 2006 15:12:07 +0300 Message-ID: <457FEE17.8080806@gmail.com> References: <20060914101704.GA17820@elf.ucw.cz> <1158583334.28629.19.camel@localhost> <20060919182523.GE7099@elf.ucw.cz> <200612121200.18513.david-b@pacbell.net> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <200612121200.18513.david-b@pacbell.net> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.osdl.org Errors-To: linux-pm-bounces@lists.osdl.org To: David Brownell Cc: scott.preece@motorola.com, matthew.a.locke@comcast.net, linux-pm@lists.osdl.org, Pavel Machek , Amit Kucheria List-Id: linux-pm@vger.kernel.org David Brownell wrote: > On Tuesday 19 September 2006 11:25 am, Pavel Machek wrote: >> Could you perhaps provide list of operating points for 770? It would >> help understanding a bit, I'd say. > = > If there was a followup here, I missed it ... > = > ISTR that it doesn't use (formal) operating points, and that a lot of the > basic SOC power savings (vs powering off the display or wifi) come from a > different kind of mechanism entirely. Namely, a combination of dynamic > tick with a modified system idle task, which enters one of the OMAP low > power modes during those long periods between clock ticks or other irqs. > = > That's one of the standard power saving schemes used on OMAP1 platforms > with Linux. sample of reasonable operating points for OMAP1 platforms along with approp= riate = patches may be found at http://dynamicpower.sourceforge.net/dpm-omap.html Eugeny > = > - Dave > _______________________________________________ > linux-pm mailing list > linux-pm@lists.osdl.org > https://lists.osdl.org/mailman/listinfo/linux-pm > =