From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kevin Hilman Subject: Re: PM branch updates: 3430sdp and omap3evm results Date: Tue, 03 Feb 2009 22:10:00 -0800 Message-ID: <871vueag1z.fsf@deeprootsystems.com> References: <87fxj4ty1l.fsf@deeprootsystems.com> <3a2dabf50902010605n4f642d21p35d76f1eef8fa908@mail.gmail.com> <3a2dabf50902032134tf769d73m5fe7837e6d6c79a2@mail.gmail.com> <877i46ahcn.fsf@deeprootsystems.com> <3a2dabf50902032144i24a539a4i887b0153e81d1e9e@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from rv-out-0506.google.com ([209.85.198.225]:40785 "EHLO rv-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751120AbZBDGKF (ORCPT ); Wed, 4 Feb 2009 01:10:05 -0500 Received: by rv-out-0506.google.com with SMTP id k40so2405131rvb.1 for ; Tue, 03 Feb 2009 22:10:04 -0800 (PST) In-Reply-To: <3a2dabf50902032144i24a539a4i887b0153e81d1e9e@mail.gmail.com> (Ramesh Gupta Guntha's message of "Wed\, 4 Feb 2009 11\:14\:54 +0530") Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Ramesh Gupta Guntha Cc: linux-omap@vger.kernel.org Ramesh Gupta Guntha writes: > Kevin, > > > On 2/4/09, Kevin Hilman wrote: >> Ramesh Gupta Guntha writes: >> >> > Hi, >> > >> > I am able to resolve all other issues with this pm branch except one issue, >> > >> > I am not able to enable the iva2 clock once system is suspended and >> > resumed, I am getting below messages. >> >> >> >> <3>clock: dpll2_ck failed transition to 'locked' >> >> clock: dpll2_ck failed transition to 'locked' >> >> <3>clock: dpll2_ck failed transition to 'locked' >> >> clock: dpll2_ck failed transition to 'locked' >> > >> > Once after booting ( without adding bridgedriver/ installing bridgedriver) >> > CM_CLKEN_PLL_IVA2 value shows as 0x37 indicates IVA2 DPLL in locked mode. >> > >> > once after system suspend the value is not restored I am seeing that as >> > 0x11 indicates IVA2 DPLL is low power stop mode. >> > >> > Can any one please provide your inputs on the above error? I tried >> > reconfiguring the CM_CLKEN_PLL_IVA2 to lock mode but still I am seeing >> > the same messages as above while enabling iva2 clock. >> >> Are you suspending into retention or off-mode? > > I am suspending into Off mode. > Do you see this problem when only going into retention? If not, sounds like we're missing some registers being saved/restored across off-mode. Kevin