From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754676AbYISOfH (ORCPT ); Fri, 19 Sep 2008 10:35:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752474AbYISOe4 (ORCPT ); Fri, 19 Sep 2008 10:34:56 -0400 Received: from de01egw01.freescale.net ([192.88.165.102]:36946 "EHLO de01egw01.freescale.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752723AbYISOez (ORCPT ); Fri, 19 Sep 2008 10:34:55 -0400 Message-ID: <48D3B880.3070607@freescale.com> Date: Fri, 19 Sep 2008 09:34:40 -0500 From: Timur Tabi User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.8.1.16) Gecko/20080702 SeaMonkey/1.1.11 MIME-Version: 1.0 To: Haavard Skinnemoen CC: Dan Williams , lkml Subject: Re: dmaengine.c: question about device_alloc_chan_resources References: <48D02589.8070601@freescale.com> <20080918162826.3a9d9429@hskinnemo-gx745.norway.atmel.com> <48D2664D.7040204@freescale.com> <20080918164535.5e9f77a8@hskinnemo-gx745.norway.atmel.com> <20080919132544.533ab7d0@hskinnemo-gx745.norway.atmel.com> In-Reply-To: <20080919132544.533ab7d0@hskinnemo-gx745.norway.atmel.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 Haavard Skinnemoen wrote: > Yes, or maybe provide an interface for simply requesting a channel > without having to register any callbacks. I could use this feature. The sound drivers for our MPC8610 processor use DMA, but the drivers need to control the DMA hardware directly, so I can't use dmaengine. I would like to be able to just reserve the channels and program them as I see fit. -- Timur Tabi Linux kernel developer at Freescale