From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934414AbbJHPnd (ORCPT ); Thu, 8 Oct 2015 11:43:33 -0400 Received: from mout.kundenserver.de ([212.227.126.131]:56866 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934072AbbJHPnb (ORCPT ); Thu, 8 Oct 2015 11:43:31 -0400 From: Arnd Bergmann To: linux-arm-kernel@lists.infradead.org Cc: "M'boumba Cedric Madianga" , mcoquelin.stm32@gmail.com, robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, linux@arm.linux.org.uk, vinod.koul@intel.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org Subject: Re: [PATCH 1/4] dt-bindings: Document the STM32 DMA bindings Date: Thu, 08 Oct 2015 17:43:11 +0200 Message-ID: <13614799.2Hi64P0fJ2@wuerfel> User-Agent: KMail/4.11.5 (Linux/3.16.0-10-generic; KDE/4.11.5; x86_64; ; ) In-Reply-To: <1444317612-818-2-git-send-email-cedric.madianga@gmail.com> References: <1444317612-818-1-git-send-email-cedric.madianga@gmail.com> <1444317612-818-2-git-send-email-cedric.madianga@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Provags-ID: V03:K0:/0GGkRAnexpdbo96DfX2AwpEwjCM6TmhiaddF9TaB2ivRVQ//er iiEybI9nHcaJnMkmlzK8iOCEEEId46Ot2VupWbOJ4pIwL/LaYaUkzKetALjUfA5KjlHtiYr 8sc/7Zv8JLOq9c4PAYWLFcGVDd/pw+RE84OeN64nujng3fQ4+3+fooD7KBzi9JlvBay30b3 8L8FEwEQXTN0vtif3iRdw== X-UI-Out-Filterresults: notjunk:1;V01:K0:7TVfAI+fJ/U=:AF+cjEaNonFTPoJ+pOHtVJ 68dg4MbiVze2jr2XF0a6TplRRjOJthkQcqP7IOJesv+7QnNic9LAKFClUFGleD6jtRNTFoUjP k4kQChZGBIQlJ4VTRMDExhRqdF4RHIp06ShKgZPtyL6NxC67vt7Uqn/9rylNYU9tLPH80bKPZ d5REhLZPmw4VLcHk0fg2cCQg2kRfI+fJnJPdrMDviT2jiTOYlE+I5aPIBQLnQgNt83ziynB8p I6k8235VTX5GcIOJGj94oPWIsXSlBA5KhoreQJxDVaOEDrh45qCSc4BRmtDOgZq5NWah4fu8y 8beNoeJWt++pzWQfAtpsCgytt6mmHig2j4UorpjIrH6DnKpFm+Bf7vlf5HghbB5TT1mDpFx+q xSvz9bBppn4wxFXWcEfWS/SiOQMjD+ooBWpU5gWhN7FMtVWGYNk2AZgWI0WU9foJ7zwbztAu1 AoMoUbCKywCaTSfem5d/VW5iKeuYIlQ0Ruxk8Qgx+rZeJuY/gT7Hg19cvm8wLRSeapSIooA5M L74Vyc2xqpr0Ouz4VduaqlYHbG5KMCUD7e17vAU/kNkLLsZFby2bjcPFkgskWGfB9bTZFxBYv 3Z1lmg2bvezF2vOYSPz6UPip68+5ez1yN+S2Z1PZnXXF4NX0phrHmjpmnxXO2f+4ARCtaxzUh Ktj83rphML2tZvAslPRXaEwWHn2W7jBBu0W+aeHzaDwfWiVVjF4p6tfMSTsQzM+6u1e4UdUs/ l0rAfzH75SOM2zwo Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thursday 08 October 2015 17:20:09 M'boumba Cedric Madianga wrote: > +Each dmas request consists of 5 cells: > +1. A phandle pointing to the STM32 DMA controller > +2. The channel id > +3. The request line number > +4. A 32bit mask specifying the DMA channel configuration > It's fairly unusual to encode the channel id here, rather than letting the driver pick one. Is that actually required here? Arnd