From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, URIBL_BLOCKED,USER_AGENT_NEOMUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 69737C169C4 for ; Mon, 11 Feb 2019 13:09:43 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3107221855 for ; Mon, 11 Feb 2019 13:09:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="NUhDd376" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3107221855 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bootlin.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=9ryK16bmi0G9vnmgyyyuxLeWxRIobWhL6cOJwkwKVKI=; b=NUhDd376JMtrWL pCapl5tkqRQDISedpEErvvZivBFOterXJxLjhAptcUHceJk14y4ZthCGqg1/xVC+d5NJiDXmYg63v Kriv9Xfpe9MV6xrS9RX996h/BL9rZIbiqZeXUzh6e74+HiSEFJ0Rq+QS31eIbCH6R/43GcizGno8G PbbEYKTK4BTn1l8T2tS3ZF4n5xV+V2dXErs9Bnf9VLly4PeMKxESaoZH36dWoBCZuo+ht+pG00GXw YuZRbOUOGuiKH/EBN5VcFobuPcVoCc95fQG5I9tU+GiIzTjY4uP3u0g2pOSQIbh2j7IldZ0oWVrfz dFBe0ijDSuOjpUiOWpQw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gtBL7-0002f0-Ai; Mon, 11 Feb 2019 13:09:37 +0000 Received: from relay11.mail.gandi.net ([217.70.178.231]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gtBL0-0002c1-UV for linux-arm-kernel@lists.infradead.org; Mon, 11 Feb 2019 13:09:34 +0000 Received: from localhost (aaubervilliers-681-1-80-177.w90-88.abo.wanadoo.fr [90.88.22.177]) (Authenticated sender: maxime.ripard@bootlin.com) by relay11.mail.gandi.net (Postfix) with ESMTPSA id 5F3FA100007; Mon, 11 Feb 2019 13:09:16 +0000 (UTC) Date: Mon, 11 Feb 2019 14:09:15 +0100 From: Maxime Ripard To: Rob Herring Subject: Re: [PATCH v2 4/7] of: address: Add support for the dma-parent property Message-ID: <20190211130915.6lgenqziixecik5p@flea> References: <824396752ee40c8e4222fddb4a80408646989c17.1549482066.git-series.maxime.ripard@bootlin.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20180716 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190211_050931_275077_79992304 X-CRM114-Status: GOOD ( 13.60 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Thomas Petazzoni , Arnd Bergmann , Robin Murphy , dri-devel , Georgi Djakov , Paul Kocialkowski , Chen-Yu Tsai , Yong Deng , Frank Rowand , Dave Martin , "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Feb 06, 2019 at 02:57:51PM -0600, Rob Herring wrote: > On Wed, Feb 6, 2019 at 1:42 PM Maxime Ripard wrote: > > > > Some SoCs have devices that are using a separate bus from the main bus to > > perform DMA. > > > > These buses might have some restrictions and/or different mapping than from > > the CPU side, so we'd need to express those using the usual dma-ranges, but > > using a different DT node than the node's parent. > > > > Add support for a dma-parent property that links to the DMA bus used by the > > device in such a case. > > ?? dma-parent is gone now, right? And I see #dma-parent-cells? Urgh, right... I forgot to update the commit log, I'll resend it. Maxime -- Maxime Ripard, Bootlin Embedded Linux and Kernel engineering https://bootlin.com _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel