From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933456Ab2GCGa4 (ORCPT ); Tue, 3 Jul 2012 02:30:56 -0400 Received: from hqemgate03.nvidia.com ([216.228.121.140]:7331 "EHLO hqemgate03.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933432Ab2GCGas (ORCPT ); Tue, 3 Jul 2012 02:30:48 -0400 X-PGP-Universal: processed; by hqnvupgp08.nvidia.com on Mon, 02 Jul 2012 23:30:45 -0700 Message-ID: <4FF290A1.6060603@nvidia.com> Date: Tue, 3 Jul 2012 11:56:41 +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: Mark Brown CC: Stephen Warren , "tiwai@suse.de" , "perex@perex.cz" , Stephen Warren , "lrg@ti.com" , "alsa-devel@alsa-project.org" , "linux-kernel@vger.kernel.org" , "linux-tegra@vger.kernel.org" Subject: Re: [PATCH] ASoC: tegra: use dmaengine based dma driver References: <1340969673-7776-1-git-send-email-ldewangan@nvidia.com> <1340969673-7776-2-git-send-email-ldewangan@nvidia.com> <4FEDDF89.1050907@wwwdotorg.org> <4FEF166D.2010705@nvidia.com> <4FF15B16.9020903@nvidia.com> <4FF1D00D.6040402@wwwdotorg.org> <20120702164717.GH25093@opensource.wolfsonmicro.com> In-Reply-To: <20120702164717.GH25093@opensource.wolfsonmicro.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 Monday 02 July 2012 10:17 PM, Mark Brown wrote: > * PGP Signed by an unknown key > > On Mon, Jul 02, 2012 at 10:45:01AM -0600, Stephen Warren wrote: > >> to work. No audio is heard, and aplay eventually exits with the >> following error message: > For values of eventually that will be about 10s by default. > >> aplay: pcm_write:1603: write error: Input/output error >> I believe this means that the DMA simply isn't operating. > Yes, normally. Let me debug this specific to T20 but it will not stop to apply the patch.