Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762143AbZDAIdp (ORCPT ); Wed, 1 Apr 2009 04:33:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1760836AbZDAIdS (ORCPT ); Wed, 1 Apr 2009 04:33:18 -0400 Received: from relay.atmel.no ([80.232.32.139]:51575 "EHLO relay.atmel.no" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761398AbZDAIdQ (ORCPT ); Wed, 1 Apr 2009 04:33:16 -0400 Date: Wed, 1 Apr 2009 10:33:07 +0200 From: Hans-Christian Egtvedt To: Hans-Christian Egtvedt Cc: "Sosnowski, Maciej" , "linux-kernel@vger.kernel.org" , "Williams, Dan J" Subject: Re: [PATCH 1/2] dw_dmac: set CAP_PRIVATE capability for DW DMA controller Message-ID: <20090401103307.27c8426d@hcegtvedt> In-Reply-To: <20090401070440.326f6e7f@hcegtvedt> References: <1237894506-11622-1-git-send-email-hans-christian.egtvedt@atmel.com> <129600E5E5FB004392DDC3FB599660D790F8C3EB@irsmsx504.ger.corp.intel.com> <20090401070440.326f6e7f@hcegtvedt> Organization: Atmel X-Mailer: Claws Mail 3.6.1 (GTK+ 2.16.0; i486-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1228 Lines: 37 On Wed, 1 Apr 2009 07:04:40 +0200 Hans-Christian Egtvedt wrote: > On Tue, 31 Mar 2009 15:01:49 +0100 > "Sosnowski, Maciej" wrote: > > Remember however that you can leave the device generally non-private > > and attempt as needed to allocate a channel for exclusive usage by > > dma_request_channel() > > > > The weird part was that when testing this, the dma_request_channel() > would not return any channel before DMA_PRIVATE flag was set. I think > I did this some time ago, I can do a retest with the current 2.6.29 > and see how it behaves. > On 2.6.29 I do not have to set the DMA_PRIVATE flag for dma_request_channel() to work now. So I guess this patch could be skipped. I am quite sure I did the previous testing without any of the DMA clients enabled. My original work was based on 2.6.29-rc3 IIRC. So I do not really know why this was needed. -- Best regards, Hans-Christian Egtvedt -- 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/