From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomi Valkeinen Subject: Re: [PATCH] omap3: l3: Temporary fix to avoid the kernel hang with beagle board. Date: Mon, 01 Aug 2011 09:01:19 +0300 Message-ID: <1312178479.2075.12.camel@deskari> References: <1304952352-27837-1-git-send-email-r.sricharan@ti.com> <4E18F0D1.3080704@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: Received: from na3sys009aog108.obsmtp.com ([74.125.149.199]:47194 "EHLO na3sys009aog108.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753350Ab1HAGBZ (ORCPT ); Mon, 1 Aug 2011 02:01:25 -0400 Received: by mail-fx0-f45.google.com with SMTP id b27so4857169fxb.32 for ; Sun, 31 Jul 2011 23:01:24 -0700 (PDT) In-Reply-To: Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Paul Walmsley Cc: Santosh Shilimkar , sricharan , linux-omap@vger.kernel.org On Sat, 2011-07-09 at 18:30 -0600, Paul Walmsley wrote: > Hi Santosh, > > On Sat, 9 Jul 2011, Santosh Shilimkar wrote: > > > Sorry for not closing the loop on this thread but I thought Tomi > > root-caused the DSS timeout issue to incorrect reset sequence of > > DSS IP. With that fixed I though we shouldn't see that issue. > > OK great, happy to hear that it was tracked down! > > Tomi, do you have patches to fix the reset bug? I have to say I'm not sure what this is about... I haven't seen any hangs. There was (or perhaps still is) problems with the hwmod code resetting DSS. This was because the hwmod code didn't enable all the DSS clocks before doing the reset. However, this shouldn't cause any problems in the current mainline kernel, as the DSS driver there does a reset itself. This will change then the DSS starts using pmruntime. Tomi