From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roger Quadros Subject: Re: PM: UART not resuming from OFF mode Date: Mon, 10 Aug 2009 09:50:39 +0300 Message-ID: <4A7FC33F.8030508@nokia.com> References: <4A7BEC0A.9030909@nokia.com> <87k51f4mto.fsf@deeprootsystems.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from smtp.nokia.com ([192.100.122.230]:56046 "EHLO mgw-mx03.nokia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751615AbZHJGvD (ORCPT ); Mon, 10 Aug 2009 02:51:03 -0400 In-Reply-To: Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: "ext Aguirre Rodriguez, Sergio Alberto" Cc: Kevin Hilman , "linux-omap@vger.kernel.org" ext Aguirre Rodriguez, Sergio Alberto wrote: > >> -----Original Message----- >> From: linux-omap-owner@vger.kernel.org [mailto:linux-omap- >> owner@vger.kernel.org] On Behalf Of Kevin Hilman >> Sent: Friday, August 07, 2009 11:21 AM >> To: Roger Quadros >> Cc: linux-omap@vger.kernel.org >> Subject: Re: PM: UART not resuming from OFF mode >> >> Roger Quadros writes: >> >>> I'm facing this strange problem since some days. I have 3 identical >>> boards using OMAP3430 ES3.1 and I'm using Kevin's PM >>> tree. http://git.kernel.org/?p=linux/kernel/git/khilman/linux-omap- >> pm.git;a=shortlog;h=pm >>> The problem is that UART3 fails to operate correctly after OFF mode on >>> _two_ of the boards but works on one. It seems to receive characters >>> but 0 only. So characters do not show up on terminal. >>> >>> Is anybody experiencing similar problems with UART and off mode on your >> boards? >> >> Is this after suspend-to-OFF or OFF-while-idle? >> >> I've experienced this with UART1 on SDP ES3.0, but according to >> Rajendra it didn't happen on SDP ES3.1 (I don't currently have any >> ES3.1 hardware) :( >> >> Are all of yours ES3.1 ? > > Could it be related to board encryption type (GP, EMU, HS)? The boards on which it is passing and failing are ES3.1 HS. > > I'm not an expert on the topic, but I'm just throwing possible variants... > > Regards, > Sergio >> I haven't tracked it further since I only saw it on my SDP with UART1 >> and not on any other board. >> >> Kevin >> >> >> >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-omap" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html >