From mboxrd@z Thu Jan 1 00:00:00 1970 From: Felipe Balbi Subject: Re: [PATCH v5 1/3] ARM: add CPPI 4.1 DMA support Date: Tue, 04 Jan 2011 16:56:28 +0200 Message-ID: <1294152988.1822.12.camel@eowin> References: <201005152214.53993.sshtylyov@ru.mvista.com> <4D21F3F2.6090302@mvista.com> <20110103163447.GB2911@n2100.arm.linux.org.uk> <19F8576C6E063C45BE387C64729E739404BD3F2C4D@dbde02.ent.ti.com> <4D220246.5020303@mvista.com> <19F8576C6E063C45BE387C64729E739404BD3F2C58@dbde02.ent.ti.com> <20110103204416.GA2240@legolas.emea.dhcp.ti.com> <4D231B5F.7030607@mvista.com> <1294149984.1822.9.camel@eowin> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: Received: from ns1.siteground211.com ([209.62.36.12]:47333 "EHLO serv01.siteground211.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751176Ab1ADO4e (ORCPT ); Tue, 4 Jan 2011 09:56:34 -0500 In-Reply-To: Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Ming Lei Cc: Sergei Shtylyov , balbi@ti.com, "Gupta, Ajay Kumar" , "davinci-linux-open-source@linux.davincidsp.com" , Russell King - ARM Linux , "linux-omap@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" Hi, On Tue, 2011-01-04 at 22:40 +0800, Ming Lei wrote: > > The end goal is just to drop all these ad-hoc "APIs" for accessing DMA > > on musb code. > > If this kind of DMA controllers are only used by MUSB, seems not > necessary to convert to dmaengine API. Any benefit we can get > from the convert? MUSB is cross-platform already after all. correct, OMAP GPIO controller is only used on OMAPs, so why do we even bother having gpiolib, right ? -- balbi