From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752352Ab3KYWSU (ORCPT ); Mon, 25 Nov 2013 17:18:20 -0500 Received: from bear.ext.ti.com ([192.94.94.41]:59042 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751102Ab3KYWST (ORCPT ); Mon, 25 Nov 2013 17:18:19 -0500 Message-ID: <5293CC93.6040603@ti.com> Date: Mon, 25 Nov 2013 16:17:55 -0600 From: Joel Fernandes User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130803 Thunderbird/17.0.8 MIME-Version: 1.0 To: Tony Lindgren CC: Linux ARM Kernel List , , Linux Kernel Mailing List , Santosh Shilimkar Subject: Re: [PATCH 6/7] ARM: OMAP: Disable POSTED mode for errata i103 and i767 References: <1385415876-12387-1-git-send-email-joelf@ti.com> <1385415876-12387-7-git-send-email-joelf@ti.com> <20131125221437.GW10023@atomide.com> In-Reply-To: <20131125221437.GW10023@atomide.com> Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/25/2013 04:14 PM, Tony Lindgren wrote: > * Joel Fernandes [131125 13:46]: >> Enabling of Posted mode is seen to cause problems on dmtimer modules on AM33xx >> (much like other OMAPs). Reference discussions on forums [1] [2]. Earlier >> patch solving this on other OMAPs [3]. >> >> For OMAP SoCs with this errata, the fix has been to not enable Posted mode. >> However, on some SoCs (atleast AM33xx) which carry this errata, Posted mode >> is enabled on reset. So we not only need to ignore enabling of the POSTED bit >> when the timer is requested, but also disable Posted mode if errata is present. > > This could explain some occasional lost timers I saw a while back when > testing things.. We most likely should merge for the -rc series with cc stable. Sure, I agree. > > Does this depend on the other patches in this series? > No it doesn't depend. thanks, -Joel