From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.gna.ch (darkcity.gna.ch [195.226.6.51]) by ozlabs.org (Postfix) with ESMTP id 51B2F2C00A7 for ; Sat, 3 Aug 2013 02:52:44 +1000 (EST) Message-ID: <1375462346.3852.42.camel@thor.local> Subject: Re: therm_pm72 units, interface From: Michel =?ISO-8859-1?Q?D=E4nzer?= To: Aaro Koskinen Date: Fri, 02 Aug 2013 18:52:26 +0200 In-Reply-To: <20130802155818.GB29933@blackmetal.musicnaut.iki.fi> References: <1345066616.11751.2.camel@pasglop> <1358465885.2782.24.camel@pasglop> <20130719174300.GL14385@blackmetal.musicnaut.iki.fi> <1374275809.19894.562.camel@pasglop> <20130720203346.GM14385@blackmetal.musicnaut.iki.fi> <1375437816.3852.12.camel@thor.local> <1375447861.15999.1.camel@pasglop> <1375454871.3852.27.camel@thor.local> <20130802155818.GB29933@blackmetal.musicnaut.iki.fi> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Cc: Jan Engelhardt , Ben Hutchings , linuxppc-dev List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Fre, 2013-08-02 at 18:58 +0300, Aaro Koskinen wrote: > On Fri, Aug 02, 2013 at 04:47:51PM +0200, Michel D=C3=A4nzer wrote: > > On Fre, 2013-08-02 at 22:51 +1000, Benjamin Herrenschmidt wrote: > > > On Fri, 2013-08-02 at 12:03 +0200, Michel D=C3=A4nzer wrote: > > > > Could a similar change fix the same problem on desktop G5s? The sam= e > > > > values for slots_param in windfarm_pm112.c don't help, unfortunatel= y. > > >=20 > > > You have a 11,2 and a noisy fan ? Odd, mine(s) don't.... I can dbl ch= eck > > > the values vs. what Darwin uses tomorrow... > >=20 > > Yes, see /proc/cpuinfo below. > >=20 > > With older kernels (currently still using Debian's 3.2.0-4-powerpc64 > > because of this problem), the fans go basically silent as soon as the > > windfarm modules are loaded. With current kernels, the fans stay at the > > level OF sets them to, until after a while they go into 'airplane mode'= . > >=20 > > One thing I notice now is that the lines like > >=20 > > [ 9.539173] windfarm: CPUs control loops started. > > [ 16.209962] windfarm: Backside control loop started. > > [ 16.262274] windfarm: Slots control loop started. > > [ 16.371642] windfarm: Drive bay control loop started. > >=20 > > no longer appear in dmesg with current kernels. Should they? >=20 > Yes. They are printed once all the sensor and control modules are > loaded and registered. If the loops are not started, it's basically > doing nothing. Maybe something goes wrong in module loading? What lsmod > is showing? Thanks for the suggestion. The same windfarm modules were loaded in both cases, but i2c_powermac wasn't loaded with the newer kernels. Loading it manually fixes the problem. How is i2c_powermac supposed to get loaded with current kernels? --=20 Earthling Michel D=C3=A4nzer | http://www.amd.c= om Libre software enthusiast | Debian, X and DRI developer