From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756846Ab2CLTr3 (ORCPT ); Mon, 12 Mar 2012 15:47:29 -0400 Received: from mail-yw0-f46.google.com ([209.85.213.46]:44537 "EHLO mail-yw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756440Ab2CLTr2 (ORCPT ); Mon, 12 Mar 2012 15:47:28 -0400 MIME-Version: 1.0 In-Reply-To: <1331520476.4657.79.camel@vkoul-udesk3> References: <1331101687.24656.319.camel@vkoul-udesk3> <20120307093026.GM17370@n2100.arm.linux.org.uk> <20120307103112.GP17370@n2100.arm.linux.org.uk> <20120307124620.GT17370@n2100.arm.linux.org.uk> <20120307142634.GA18787@n2100.arm.linux.org.uk> <20120307162755.GB18787@n2100.arm.linux.org.uk> <1331188201.4657.51.camel@vkoul-udesk3> <1331204128.4657.54.camel@vkoul-udesk3> <1331206459.4657.59.camel@vkoul-udesk3> <1331211513.4657.67.camel@vkoul-udesk3> <1331284918.4657.69.camel@vkoul-udesk3> <1331285959.4657.76.camel@vkoul-udesk3> <1331520476.4657.79.camel@vkoul-udesk3> Date: Mon, 12 Mar 2012 20:47:27 +0100 Message-ID: Subject: Re: [PATCH/RFC] dmaengine: add a slave parameter to __dma_request_channel() From: Linus Walleij To: Vinod Koul Cc: Guennadi Liakhovetski , Russell King - ARM Linux , linux-kernel@vger.kernel.org, Jassi Brar , Magnus Damm , Paul Mundt Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Mar 12, 2012 at 3:47 AM, Vinod Koul wrote: > On Fri, 2012-03-09 at 13:20 +0100, Guennadi Liakhovetski wrote: >> It can be made to work as long as there's only one DMAC group with >> configurable channels and all other DMACs are dedicated to specific >> peripherals, yes. I don't know whether there are already now or are >> approaching any platforms with multiple reconfigurable groups. > > And that is what I am talking about. > > Having specific channel mapping given by platform for all channels which > are to be used dedicated. And a pool of channels which can be used by > anyone (if they can be) on a platform. > > Does this proposal sound good for others as well. It sounds good to me. Yours, Linus Walleij