From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.free-electrons.com ([88.190.12.23]:40649 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750765Ab1IUTRf convert rfc822-to-8bit (ORCPT ); Wed, 21 Sep 2011 15:17:35 -0400 Date: Wed, 21 Sep 2011 21:17:26 +0200 From: Thomas Petazzoni To: Devin Heitmueller Cc: linux-media@vger.kernel.org, srinivasa.deevi@conexant.com, Maxime Ripard Subject: Re: cx231xx: DMA problem on ARM Message-ID: <20110921211726.26de775e@skate> In-Reply-To: References: <20110921135604.64363a2e@skate> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-media-owner@vger.kernel.org List-ID: Hello Devin, Thanks for your quick reply. Le Wed, 21 Sep 2011 08:04:52 -0400, Devin Heitmueller a écrit : > I ran into the same issue on em28xx in the past (which is what those > parts of cx231xx are based on). Yes, just adding > URB_NO_TRANSFER_DMA_MAP should result in it starting to work. Please > try that out, and assuming it works feel free to submit a patch which > can be included upstream. Ok, we'll try this out and report the results, and if those are positive, the corresponding patch. Regards, Thomas -- Thomas Petazzoni, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com