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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3FBC8C54EAA for ; Fri, 27 Jan 2023 16:15:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234068AbjA0QPk (ORCPT ); Fri, 27 Jan 2023 11:15:40 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42886 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234615AbjA0QPj (ORCPT ); Fri, 27 Jan 2023 11:15:39 -0500 Received: from mail-wm1-x330.google.com (mail-wm1-x330.google.com [IPv6:2a00:1450:4864:20::330]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8F30C7AE70 for ; Fri, 27 Jan 2023 08:15:28 -0800 (PST) Received: by mail-wm1-x330.google.com with SMTP id l41-20020a05600c1d2900b003daf986faaeso3844514wms.3 for ; Fri, 27 Jan 2023 08:15:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=pgZz+6PWFo4uW0VORVf3OBAL6wZ6DYjbjKUyaSSYmLM=; b=Ort+m9TbQelr2tInwYyQ8i8qHQ9blNIDw8TmQjGTYoR4bUs7fMU1NnbQrZhKPmY7OY bnGaPQLEplLrNuPt25RBJHdyb55D63iCHX2SOipQ5m2HVMHZFV1vsn+vdQxU3ZFuFOjv 3ggvXdOihf0ZvuO7ZituWSGczgLzkhUcp4AdTYssg9RFpXJZg6WqnkyaHR7GzfOzDO6Z uZtGy2pVmhKEFQnUtBTDX8Rja8TwXTShtIEIWgM21CKC1YsVaY9gPdQ6wKAZFqgeiMoj pADxQ3X+LeP1plXK4RroYiQbxr473gHm9Q3suLR68ArUmJN5R61LknbGQP1KSdt6dNqo O8uw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=pgZz+6PWFo4uW0VORVf3OBAL6wZ6DYjbjKUyaSSYmLM=; b=EvG2SPileJZpN2EI3qy+ONVDwTMDN1Mw7s50D0OqxRbNu8XEeyF4LABIVqNRpF/aEK HHyMpXvy9725L6XIogNdo8URugyKDw6YHZ2SpCqqifyasLZlA/34RZgWd9X5TevzjPC0 lkQBtNJM/ZJJTywJtpkbTetrsf1vTqvFwPj5UTcDEat8uos5AVuOnGSQ+v+SwaHcq1yF zm9mcfMb7cY4aE5p+bnw8lPlyG5ZMIuJOLcq68UI2CGgWMrrUY+mEU1drKcnU72uyCHb jYFDSCAGHGRaAdySBsXf0PnGdY8+EiOFTm+lkB2kHe6YcZL1pcPI63GcW0jFilud8LtB EMsA== X-Gm-Message-State: AO0yUKXqJYWqgd5DuRE/TmWixTwnReN0AFsoBsWj8qiWFU75Q9uNAvBT fj+12bVUTHuWvfqELvivcIDNyg== X-Google-Smtp-Source: AK7set8XGssyTqlV8J4exzGzcFmE8vvc7miQvlQUvYrj/PoNPn4D2LcsEEXmO53TfG7v3RdzI+/L8Q== X-Received: by 2002:a05:600c:4f4a:b0:3dc:16d4:a99f with SMTP id m10-20020a05600c4f4a00b003dc16d4a99fmr13556737wmq.8.1674836127152; Fri, 27 Jan 2023 08:15:27 -0800 (PST) Received: from [192.168.1.109] ([178.197.216.144]) by smtp.gmail.com with ESMTPSA id ip7-20020a05600ca68700b003dc433bb5e1sm427854wmb.9.2023.01.27.08.15.25 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 27 Jan 2023 08:15:26 -0800 (PST) Message-ID: Date: Fri, 27 Jan 2023 17:15:24 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.7.1 Subject: Re: [PATCH v9 07/10] arm64: dts: ls1046ardb: Add serdes bindings Content-Language: en-US To: Sean Anderson , Shawn Guo Cc: Vinod Koul , Kishon Vijay Abraham I , linux-phy@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Camelia Alexandra Groza , Madalin Bucur , Bagas Sanjaya , Rob Herring , Ioana Ciornei , linuxppc-dev@lists.ozlabs.org, devicetree@vger.kernel.org, Krzysztof Kozlowski , Li Yang References: <20221230000139.2846763-1-sean.anderson@seco.com> <20221230000139.2846763-8-sean.anderson@seco.com> <20230125234335.GC20713@T480> <8074f0be-8a70-a937-49f2-123e0bfc6218@seco.com> <20230127075248.GL20713@T480> <20a9070f-9673-2f51-97df-68e78c37d894@seco.com> From: Krzysztof Kozlowski In-Reply-To: <20a9070f-9673-2f51-97df-68e78c37d894@seco.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On 27/01/2023 17:11, Sean Anderson wrote: >>>>> >>>>> .../boot/dts/freescale/fsl-ls1046a-rdb.dts | 112 ++++++++++++++++++ >>>>> drivers/phy/freescale/Kconfig | 1 + >>>> >>>> The phy driver Kconfig change shouldn't be part of this patch. >>> >>> I put it here for bisectability, since this is the point where we need >>> to enable it. But I can do this in a separate patch if you want. >> >> From DT ABI perspective, it's already broken anyway if you need to change >> kernel and DT atomically. > > AIUI new kernels must work with old device trees, but new device trees need not > work with old kernels. So a change like this is fine, since the kernel won't > touch the serdes if it isn't supplied. You used the argument "bisectability". If the patchset is not bisectable, the ABI is broken. Best regards, Krzysztof