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 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EC83EC433F5 for ; Fri, 13 May 2022 12:12:19 +0000 (UTC) Received: by smtp.kernel.org (Postfix) id CFE44C34117; Fri, 13 May 2022 12:12:19 +0000 (UTC) Received: from mout.kundenserver.de (mout.kundenserver.de [217.72.192.75]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.kernel.org (Postfix) with ESMTPS id 67962C34100; Fri, 13 May 2022 12:12:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 smtp.kernel.org 67962C34100 Authentication-Results: smtp.kernel.org; dmarc=none (p=none dis=none) header.from=arndb.de Authentication-Results: smtp.kernel.org; spf=none smtp.mailfrom=arndb.de Received: from mail-yb1-f182.google.com ([209.85.219.182]) by mrelayeu.kundenserver.de (mreue109 [213.165.67.113]) with ESMTPSA (Nemesis) id 1MbRXj-1oMt1j3R4z-00boIG; Fri, 13 May 2022 14:12:15 +0200 Received: by mail-yb1-f182.google.com with SMTP id v59so14926109ybi.12; Fri, 13 May 2022 05:12:14 -0700 (PDT) X-Gm-Message-State: AOAM5307hYrGKDnjucx03ZAXIvRk5A98UOlMP/iMtU+WUZDYGXUh1foP CUmC/zzyWFsHWwFvnzGHbOeiROPaP5EeYMXRwp4= X-Google-Smtp-Source: ABdhPJxfSXlHQiGp7nrwso72I/95P47eTph2XTKWx941GNdu4mVPGKCRC9whxXixu0RskwZlxcjV+W7Q9bXxryN7UkU= X-Received: by 2002:a25:31c2:0:b0:641:660f:230f with SMTP id x185-20020a2531c2000000b00641660f230fmr4509779ybx.472.1652443933446; Fri, 13 May 2022 05:12:13 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Arnd Bergmann Date: Fri, 13 May 2022 14:11:57 +0200 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [GIT PULL] arm: mediatek: DT updates for v5.19 To: Matthias Brugger List-Id: Cc: arm-soc , SoC Team , "moderated list:ARM/Mediatek SoC support" , "linux-arm-kernel@lists.infradead.org" , Yong Wu Content-Type: text/plain; charset="UTF-8" X-Provags-ID: V03:K1:4zJjeeb/GTUawC3h+0/FnSud8sLRCd1DxqyF79rdqy4kAJSXvZR tBoSUdsPuQl09rY25MJMtmPg2WwrxoRkDNFC12Cbu73Bfn6nTcBaVi9/Q9upLTkQFG41vfQ dmILUzKVy9Xf1vP2MOfmIGsHolyS1T+SeF/FzgBmEtHDnlZn0rsV9JlZ5WBmNd7H9bzsxrd E8oeZLrTAhfbzdMrkCO1Q== X-UI-Out-Filterresults: notjunk:1;V03:K0:hfnO9XevpwM=:8s0kzudaz60Lie0YjRcTTN 9UptlzWPzswis7SceInv1F+9PcgrW1Xy0EVUnNVVmfRPghNqYPFRIvj2adGXY8Lhnvdx4sBfk hmTVXKUbMFgyOoknbnbjfDGuvnzilfbhPWSGMtk8hdRB0r2/CoumcEP2xYtwoaGULvv4jAdtX ZsDHc7BLVBZ9GAvx/AYPwxFW5jL896K09BwZCx+CoLH6yEYHPu2CvdLRFc+bCOk0jicSb9QYC 2whPfgACzruMcs3uxoxsR0UrePEnNvowih0uoLSHJqZILrkbY+ir67uwTHG9Yg6/gLCIPqPwR SRZIDDqq6ibyPyfz7mMUzmaHMi7MJ7L4hsTMj8YQtcLaDkQ7yZ7L1HXdz2UB3l57yjHEUvZES cCu9AK0hjTQfdd0pKpIj2vHgLdfbqymEeq8Gbt8bKTcNVtuY4LKwreWcQGOzWYxaQySaQQ9F0 /aLVKp4YVgjUpi4DHpRS1KUJk2o8/H4FYqCsZ+1PeibdDLxYe3PeQ7UHxLEVsNW+qv5L7IpWN Cfd4O4tbGk+PAHCysC9R54K/Q3d+m4n+bjsbmmL4d8PAArcWOg8ZRPOsJ1KbAIV+Aq8anD1qP dGYn3EWB2465go8E5B03so+3GAscjeL6hJOaJW5S+GPZ76TacPJ1BWF4+zmlfFthP+x+dppyH UmVFLReu/FkJSfyDUlzXbKZHPueaP760t38W0S5q2BzZejrI+SDZs7VMFMyRnI0tXe1THhWd+ KbeAMhRDAKtgcW+LAsbQLOb4lhYNiZ+G+UHBogajtq7W9iUDssx7Xyx0kyzwX0YLwNFaxnzLK GO0/lyVqucq0D/SQGpPGFCylLnLSwzNlhIFXM+S2pziEPPz+UY= On Fri, May 13, 2022 at 1:21 PM Matthias Brugger wrote: > > Hi Arnd and Olof, > > Please have a look on the below 32 bit DT updates for v5.19. Apologies for the > late pull request but I got sick and needed my time to recover. > Yong Wu (1): > arm: dts: mediatek: Get rid of mediatek, larb for MM nodes Can you clarify what this means for backwards compatibility? I see old kernels used to parse these properties, does that mean that the updated DT is no longer compatible with them? If you break compatibility, this should only be done for exceptional reasons, and explain the tradeoffs. What is the oldest kernel that is still compatible with the updated DT files, and why can't we just keep the properties around? Arnd 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 3946FC433EF for ; Fri, 13 May 2022 12:12:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:Subject:Message-ID:Date:From: In-Reply-To:References:MIME-Version:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=A+oU6+DUzv0AempwM2dV+CThVzv+GdUeZiJh+xp5ybU=; b=jgbpUo5LX+ub6m QRl+JMU005+1H5YkuaQC8DZISPh1MidZc3JT5B2R73//I1qsUmkM156XQQ7GTY3LvuKSK+bme9V59 2nd+bTAAgVUVZt7DMmy9DS9QADGxpEtRCq3cLiRyOZp8O2dHYndKlpGui53kopOPJ/J0nWVpr0rhW q4NtFq/vJZy0LSmxT2cey4ejKq/N69jXdnjwff51La4mzMRseH6pk0QnNv5sIx/ttEjotyyC/s3lg YRm8RNHS117waCP5suxghgCTi4UqL7/ybIw59uwuzymM4t5MoYGdjBOslYJfCjIKCr3cNWmFEKuO7 DGrQu7om9Xj8FG1VWaxA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1npU9m-00Fx9M-Ad; Fri, 13 May 2022 12:12:30 +0000 Received: from mout.kundenserver.de ([212.227.126.133]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1npU9a-00Fx55-5O; Fri, 13 May 2022 12:12:19 +0000 Received: from mail-yb1-f173.google.com ([209.85.219.173]) by mrelayeu.kundenserver.de (mreue012 [213.165.67.97]) with ESMTPSA (Nemesis) id 1MXGSU-1nGoXg3zdm-00YhPN; Fri, 13 May 2022 14:12:15 +0200 Received: by mail-yb1-f173.google.com with SMTP id y76so15014138ybe.1; Fri, 13 May 2022 05:12:14 -0700 (PDT) X-Gm-Message-State: AOAM532/lz+igJEf06Ww2e6Wb3gumUhS9MIPL7p52Ry7LZeLLG2ID9Te O7DpVafmYjgF/DBJC1PAlGMZLC4gxbWJXlAeeVM= X-Google-Smtp-Source: ABdhPJxfSXlHQiGp7nrwso72I/95P47eTph2XTKWx941GNdu4mVPGKCRC9whxXixu0RskwZlxcjV+W7Q9bXxryN7UkU= X-Received: by 2002:a25:31c2:0:b0:641:660f:230f with SMTP id x185-20020a2531c2000000b00641660f230fmr4509779ybx.472.1652443933446; Fri, 13 May 2022 05:12:13 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Arnd Bergmann Date: Fri, 13 May 2022 14:11:57 +0200 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [GIT PULL] arm: mediatek: DT updates for v5.19 To: Matthias Brugger Cc: arm-soc , SoC Team , "moderated list:ARM/Mediatek SoC support" , "linux-arm-kernel@lists.infradead.org" , Yong Wu X-Provags-ID: V03:K1:jYi8MElG/U3RQ1+iv7gyNNxd72GWq5Tw1dpSuzSFMEIyJBtLuyi JneUvf3wM5Yc/ZEBrlC7efnsQVhNe8amIHPlhOO00Cj+jrACVjDSXH3r6qG30mBjiV850Em +1L3MnunuYko5z1duspGjS+SSvyp1aEIF2xN7KMdDR5coGRufvn54kRTW6S1pC0JWN1BLbz YbMo56fTFdvw6yGiphhow== X-UI-Out-Filterresults: notjunk:1;V03:K0:2AV5i9Lgso0=:CyQLP/rtuh3daqRjJgTsOc M0W6+Y8qJVTiUQA5EX87KXiTPndvS+bNiMmYquoRfG5BMHObYLWiA7upyUurAlBWF3IMscYVc 0za9TS3XSlllwXOPIncs10AS4sypN8cuC7fMfyOoSU7k1Ko71S20YyTzKgLEmK7+pIzVDSf2R lp8wVh0GCUQ+yaZ0bdW3D5iFT0q4wxCEfRKZ/IdL+pyRrp+g7xjy4aGBsXxGzOSsGrnSL9hiK od/zfOnXhvWRW6EqkBTax59sCy/E3VkzxjPhN8hstPGfQivLyVctlTeyDm7OGBbrBWXD4pYLi ml7IQCRIIsnenY8Qa0CQf94vTZwLv89koMZNJNyMTEH7dD5cYSzX0AoLU+2vvoynsUC+pXcJy wEV85GsCMr0LUWv4SoZQVUXG7IgMtkb7TY8eK7Z0E+hXAFKpWMvTqGJqH2Ao9mlwTMtZ11QUs p/2ooszviTotopJe29xBbUxLnlKR+v6xW5pP588Yb2T22ewPluh9aj3cq4k+PKXnPV0a99MZW rmI4hot3mOATP5sZSsqoVsM2OCimY7ceCvwcuX8SfHajoBZWWDplQ2XjW1S4qv3ptioWW8sah 2hmVBW5KaN6d0EtYAR+eC5AZlMRiXW1xRnMLDYxna9rCmaRnqMObqgp96aHFgBpsGz/Y//pii Kby57vkDJWDqwkFDB3cK2evFj5f5VW5UhvqZF/J9nJFVeakXBpzRtevol8LXUKqQENPB2MBz0 ZbI5sgpuFv1Ov3QgQy53e2n57R4ZC9J5LI+zlcT2hbje2bQy2CexbCHeZWpzdkwDykxC2LX0f kPE3h67LDUoqsSzEkhbXLxPp17MQjZvynkAFDoYxqSBDnsi/DE= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220513_051218_545572_FC2FB6D0 X-CRM114-Status: GOOD ( 13.82 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On Fri, May 13, 2022 at 1:21 PM Matthias Brugger wrote: > > Hi Arnd and Olof, > > Please have a look on the below 32 bit DT updates for v5.19. Apologies for the > late pull request but I got sick and needed my time to recover. > Yong Wu (1): > arm: dts: mediatek: Get rid of mediatek, larb for MM nodes Can you clarify what this means for backwards compatibility? I see old kernels used to parse these properties, does that mean that the updated DT is no longer compatible with them? If you break compatibility, this should only be done for exceptional reasons, and explain the tradeoffs. What is the oldest kernel that is still compatible with the updated DT files, and why can't we just keep the properties around? Arnd _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 9167CC433F5 for ; Fri, 13 May 2022 12:13:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:Subject:Message-ID:Date:From: In-Reply-To:References:MIME-Version:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=zMojgeCS+QPRu64ovCV3If0p1CQRSUjL+IdFbhbYIZI=; b=B7dR270oBzatR6 EiaENmmPzxDMjNdTiZ9mipqKh8irzb2iIuaZZg1ew2vl0tyeaWs+PoMyg4zjcWuLmtjGeKtIs1nJF HnjPqYRXQcJWXgCZZxoCBale5q7wn1yn8hqPVGvROaa9pECXPSpFwmu6lLFA9HQREH6VsSGJlK3Yg 8I2uoLPu6qOrBNPZFLob8YraDuQx3VWu0Y3+FR157Rt8CD7FeZ8XiotDc2Ul3+zHdn6tLqaq02GvS kd11WZSMeIfiPhaxDLl73m9O7N7Mtkasg/mdTix/vy7TXKvl5NuS929GHSr/DXWa9rUj9zLM+rAKx itjdm40DglVzwqi6Xf7w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1npU9e-00Fx6t-16; Fri, 13 May 2022 12:12:22 +0000 Received: from mout.kundenserver.de ([212.227.126.133]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1npU9a-00Fx55-5O; Fri, 13 May 2022 12:12:19 +0000 Received: from mail-yb1-f173.google.com ([209.85.219.173]) by mrelayeu.kundenserver.de (mreue012 [213.165.67.97]) with ESMTPSA (Nemesis) id 1MXGSU-1nGoXg3zdm-00YhPN; Fri, 13 May 2022 14:12:15 +0200 Received: by mail-yb1-f173.google.com with SMTP id y76so15014138ybe.1; Fri, 13 May 2022 05:12:14 -0700 (PDT) X-Gm-Message-State: AOAM532/lz+igJEf06Ww2e6Wb3gumUhS9MIPL7p52Ry7LZeLLG2ID9Te O7DpVafmYjgF/DBJC1PAlGMZLC4gxbWJXlAeeVM= X-Google-Smtp-Source: ABdhPJxfSXlHQiGp7nrwso72I/95P47eTph2XTKWx941GNdu4mVPGKCRC9whxXixu0RskwZlxcjV+W7Q9bXxryN7UkU= X-Received: by 2002:a25:31c2:0:b0:641:660f:230f with SMTP id x185-20020a2531c2000000b00641660f230fmr4509779ybx.472.1652443933446; Fri, 13 May 2022 05:12:13 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Arnd Bergmann Date: Fri, 13 May 2022 14:11:57 +0200 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [GIT PULL] arm: mediatek: DT updates for v5.19 To: Matthias Brugger Cc: arm-soc , SoC Team , "moderated list:ARM/Mediatek SoC support" , "linux-arm-kernel@lists.infradead.org" , Yong Wu X-Provags-ID: V03:K1:jYi8MElG/U3RQ1+iv7gyNNxd72GWq5Tw1dpSuzSFMEIyJBtLuyi JneUvf3wM5Yc/ZEBrlC7efnsQVhNe8amIHPlhOO00Cj+jrACVjDSXH3r6qG30mBjiV850Em +1L3MnunuYko5z1duspGjS+SSvyp1aEIF2xN7KMdDR5coGRufvn54kRTW6S1pC0JWN1BLbz YbMo56fTFdvw6yGiphhow== X-UI-Out-Filterresults: notjunk:1;V03:K0:2AV5i9Lgso0=:CyQLP/rtuh3daqRjJgTsOc M0W6+Y8qJVTiUQA5EX87KXiTPndvS+bNiMmYquoRfG5BMHObYLWiA7upyUurAlBWF3IMscYVc 0za9TS3XSlllwXOPIncs10AS4sypN8cuC7fMfyOoSU7k1Ko71S20YyTzKgLEmK7+pIzVDSf2R lp8wVh0GCUQ+yaZ0bdW3D5iFT0q4wxCEfRKZ/IdL+pyRrp+g7xjy4aGBsXxGzOSsGrnSL9hiK od/zfOnXhvWRW6EqkBTax59sCy/E3VkzxjPhN8hstPGfQivLyVctlTeyDm7OGBbrBWXD4pYLi ml7IQCRIIsnenY8Qa0CQf94vTZwLv89koMZNJNyMTEH7dD5cYSzX0AoLU+2vvoynsUC+pXcJy wEV85GsCMr0LUWv4SoZQVUXG7IgMtkb7TY8eK7Z0E+hXAFKpWMvTqGJqH2Ao9mlwTMtZ11QUs p/2ooszviTotopJe29xBbUxLnlKR+v6xW5pP588Yb2T22ewPluh9aj3cq4k+PKXnPV0a99MZW rmI4hot3mOATP5sZSsqoVsM2OCimY7ceCvwcuX8SfHajoBZWWDplQ2XjW1S4qv3ptioWW8sah 2hmVBW5KaN6d0EtYAR+eC5AZlMRiXW1xRnMLDYxna9rCmaRnqMObqgp96aHFgBpsGz/Y//pii Kby57vkDJWDqwkFDB3cK2evFj5f5VW5UhvqZF/J9nJFVeakXBpzRtevol8LXUKqQENPB2MBz0 ZbI5sgpuFv1Ov3QgQy53e2n57R4ZC9J5LI+zlcT2hbje2bQy2CexbCHeZWpzdkwDykxC2LX0f kPE3h67LDUoqsSzEkhbXLxPp17MQjZvynkAFDoYxqSBDnsi/DE= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220513_051218_545572_FC2FB6D0 X-CRM114-Status: GOOD ( 13.82 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, May 13, 2022 at 1:21 PM Matthias Brugger wrote: > > Hi Arnd and Olof, > > Please have a look on the below 32 bit DT updates for v5.19. Apologies for the > late pull request but I got sick and needed my time to recover. > Yong Wu (1): > arm: dts: mediatek: Get rid of mediatek, larb for MM nodes Can you clarify what this means for backwards compatibility? I see old kernels used to parse these properties, does that mean that the updated DT is no longer compatible with them? If you break compatibility, this should only be done for exceptional reasons, and explain the tradeoffs. What is the oldest kernel that is still compatible with the updated DT files, and why can't we just keep the properties around? Arnd _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel