From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753620Ab2AaLDw (ORCPT ); Tue, 31 Jan 2012 06:03:52 -0500 Received: from hqemgate03.nvidia.com ([216.228.121.140]:6022 "EHLO hqemgate03.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752682Ab2AaLDv (ORCPT ); Tue, 31 Jan 2012 06:03:51 -0500 X-PGP-Universal: processed; by hqnvupgp07.nvidia.com on Tue, 31 Jan 2012 03:03:50 -0800 Message-ID: <4F27CA58.2020809@nvidia.com> Date: Tue, 31 Jan 2012 16:32:48 +0530 From: Laxman Dewangan User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20101208 Thunderbird/3.1.7 MIME-Version: 1.0 To: Stephen Warren CC: "ccross@android.com" , "olof@lixom.net" , "linux@arm.linux.org.uk" , "linux-tegra@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH V1] arm: tegra: dma: not required to move requestor when stopping. References: <1327392649-27605-1-git-send-email-ldewangan@nvidia.com> <74CDBE0F657A3D45AFBB94109FB122FF178CB81E5F@HQMAIL01.nvidia.com> In-Reply-To: <74CDBE0F657A3D45AFBB94109FB122FF178CB81E5F@HQMAIL01.nvidia.com> Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wednesday 25 January 2012 02:27 AM, Stephen Warren wrote: > Laxman Dewangan wrote at Tuesday, January 24, 2012 1:11 AM: >> It is not require to move the requestor of dma to INVALID >> option before stopping dma. >> >> Signed-off-by: Laxman Dewangan > Acked-by: Stephen Warren > Tested-by: Stephen Warren > > I know that Laxman has checked with the HW engineers, and they see no > reason to do this. I was originally worried about hung FIFOs preventing > an in-progress DMA from completely without the removed code, but according > to HW, that isn't a concern. > Olaf, Can it be applied if it is OK to you? Thanks, Laxman