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, 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 CDC14C282CE for ; Mon, 8 Apr 2019 08:23:29 +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 9AFBE20870 for ; Mon, 8 Apr 2019 08:23:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="njxBPjex" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9AFBE20870 Authentication-Results: mail.kernel.org; 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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 1hDPWx-0000W5-Rm; Mon, 08 Apr 2019 08:21:27 +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 1hDPWr-0000UU-HY for linux-arm-kernel@lists.infradead.org; Mon, 08 Apr 2019 08:21:26 +0000 Received: from localhost (aaubervilliers-681-1-89-125.w90-88.abo.wanadoo.fr [90.88.30.125]) (Authenticated sender: maxime.ripard@bootlin.com) by relay11.mail.gandi.net (Postfix) with ESMTPSA id E5BEB100009; Mon, 8 Apr 2019 08:21:16 +0000 (UTC) Date: Mon, 8 Apr 2019 10:21:16 +0200 From: Maxime Ripard To: Chen-Yu Tsai Subject: Re: [PATCH v5 0/7] sunxi: Add DT representation for the MBUS controller Message-ID: <20190408082116.ndh3qnbgw4p6j75c@flea> References: <5ca841d1.1c69fb81.f4702.b85d@mx.google.com> <20190408081126.t3blyvtcqslzvki2@flea> MIME-Version: 1.0 In-Reply-To: User-Agent: NeoMutt/20180716 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190408_012124_700397_8C6B071B X-CRM114-Status: GOOD ( 21.21 ) 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 , Rob Herring , Thomas Petazzoni , Arnd Bergmann , devicetree , Robin Murphy , dri-devel , Georgi Djakov , Paul Kocialkowski , Yong Deng , Frank Rowand , Dave Martin , linux-arm-kernel Content-Type: multipart/mixed; boundary="===============7410107130962294657==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============7410107130962294657== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="icwy4xww433vtde7" Content-Disposition: inline --icwy4xww433vtde7 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Mon, Apr 08, 2019 at 04:14:53PM +0800, Chen-Yu Tsai wrote: > On Mon, Apr 8, 2019 at 4:11 PM Maxime Ripard wrote: > > > > On Sat, Apr 06, 2019 at 01:06:07AM -0500, Rob Herring wrote: > > > On Mon, Apr 01, 2019 at 10:56:40AM +0200, Maxime Ripard wrote: > > > > Hi, > > > > > > > > We've had for quite some time to hack around in our drivers to take into > > > > account the fact that our DMA accesses are not done through the parent > > > > node, but through another bus with a different mapping than the CPU for the > > > > RAM (0 instead of 0x40000000 for most SoCs). > > > > > > > > After some discussion after the submission of a camera device suffering of > > > > the same hacks, I've decided to put together a serie that introduce a > > > > special interconnect name called "dma" that that allows to express the DMA > > > > relationship between a master and its bus, even if they are not direct > > > > parents in the DT. > > > > > > > > Let me know what you think, > > > > Maxime > > > > > > LGTM. > > > > > > How do you propose merging this? I can take 1-5, and 6 and 7 thru > > > arm-soc? > > > > You can merge 1-4, and I'll merge 5 through drm-misc and 6-7 through > > arm-soc > > Wouldn't there be some runtime dependency between 3, 4, and 5? What issue did you have in mind? I guess the only issue would be if we have the new DT properties, but not the new core code. But that seems pretty unlikely, since each of the trees will work independently, and next should have all of them. Maxime -- Maxime Ripard, Bootlin Embedded Linux and Kernel engineering https://bootlin.com --icwy4xww433vtde7 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRcEzekXsqa64kGDp7j7w1vZxhRxQUCXKsEfAAKCRDj7w1vZxhR xQaEAQCjhg8hQs5SWWaTx+cGymxQRADr9EokhV0aemSp75TUGgEAztIDyNTTXeqS 92Vu+ICKEwRJOUeC09HDWwR8oPJtHgw= =KVwc -----END PGP SIGNATURE----- --icwy4xww433vtde7-- --===============7410107130962294657== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============7410107130962294657==--