From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 31F26C433E0 for ; Thu, 31 Dec 2020 18:54:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E354D222BB for ; Thu, 31 Dec 2020 18:54:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726549AbgLaSyP (ORCPT ); Thu, 31 Dec 2020 13:54:15 -0500 Received: from jabberwock.ucw.cz ([46.255.230.98]:46884 "EHLO jabberwock.ucw.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726210AbgLaSyO (ORCPT ); Thu, 31 Dec 2020 13:54:14 -0500 Received: by jabberwock.ucw.cz (Postfix, from userid 1017) id 876521C0B79; Thu, 31 Dec 2020 19:53:30 +0100 (CET) Date: Thu, 31 Dec 2020 19:53:29 +0100 From: Pavel Machek To: Tony Lindgren Cc: linux-omap@vger.kernel.org, =?iso-8859-1?Q?Beno=EEt?= Cousson , devicetree@vger.kernel.org, Carl Philipp Klemm , Merlijn Wajer , Sebastian Reichel , Daniel Lezcano , Eduardo Valentin , Peter Ujfalusi Subject: Re: [PATCH 2/3] ARM: dts: motorola-mapphone: Configure lower temperature passive cooling Message-ID: <20201231185329.GA28294@amd> References: <20201230084232.19221-1-tony@atomide.com> <20201230084232.19221-2-tony@atomide.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="OXfL5xGRrasGEqWY" Content-Disposition: inline In-Reply-To: <20201230084232.19221-2-tony@atomide.com> User-Agent: Mutt/1.5.23 (2014-03-12) Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org --OXfL5xGRrasGEqWY Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! > The current cooling device temperature is too high at 100C as we have a > battery on the device right next to the SoC as pointed out by Carl Philipp > Klemm . Let's configure the max temperature to > 80C. It is very possible I don't have power management set up correctly, as it breaks the modem. (Additional problem is that shutdown does not work for me, it reboots instead, so emergency poweroff won't do much good). Shortly after bootup with kernel 5.9, I was using for motmdm debugging. 19:03, uptime 4min, CPU temp rose from 41 to 43C. Battery and board are at 28C, 30C. Let me plug in the charger. It draws 350mA from USB. 19:20, CPU still at 43C, board and battery at 30C. That's way better than I remember. I ran "cat /dev/zero"; within seconds, CPU is at 52C. It also went down to 45C rather quickly. Lets try three instances of cat /dev/zero. Again, 52C in 20 seconds and it slowly climbs to 58.5C. Let's try ofono build. 60C rather quickly, then 62C and 65C. It takes few minutes to climb to 68.5C. But... this is way better then I remember. Let's hope temperatures don't climb back during some other use. (Also... machine seems cooler to touch.) Best regards, Pavel --=20 http://www.livejournal.com/~pavelmachek --OXfL5xGRrasGEqWY Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAl/uHikACgkQMOfwapXb+vK9LACfR1wSOqcfb8LEiCHOD71dfbP2 vJkAoLGNjajcYWJqMAf1m8evlr4fld/X =R5fC -----END PGP SIGNATURE----- --OXfL5xGRrasGEqWY--