Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755627Ab3C2OgL (ORCPT ); Fri, 29 Mar 2013 10:36:11 -0400 Received: from ns.pmeerw.net ([87.118.82.44]:37986 "EHLO pmeerw.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754908Ab3C2OgK (ORCPT ); Fri, 29 Mar 2013 10:36:10 -0400 Date: Fri, 29 Mar 2013 15:36:07 +0100 (CET) From: Peter Meerwald To: Peter Ujfalusi cc: Russell King , Vinod Koul , Dan Williams , Tony Lindgren , Jarkko Nikula , Santosh Shilimkar , Felipe Balbi , linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [RFC] dmaengine: omap-dma: Start DMA without delay In-Reply-To: <1364566323-24144-1-git-send-email-peter.ujfalusi@ti.com> Message-ID: References: <1364566323-24144-1-git-send-email-peter.ujfalusi@ti.com> User-Agent: Alpine 2.01 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 765 Lines: 22 > Remove the use of a tasklet to start the DMA channel when issue_pending is > called. > The use of tasklet delays the DMA start which can cause issues at drivers, > for example the audio drivers expect that the DMA is started right away. > > Signed-off-by: Peter Ujfalusi I've reported the problem and now tested the patch applied on top of 3.8.5, running on beagle-xm; sounds good, so Tested-by: Peter Meerwald -- Peter Meerwald +43-664-2444418 (mobile) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/