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 808DDF3C984 for ; Tue, 24 Feb 2026 14:34:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=QvPQfS2HcOi6Dwcm5kCIBpAWK6QLR1BenH137ecxFTk=; b=wQyAO6le6A/9jhYxp1yqwvB9Sl MqcDRVnvMdw0C98/xqi7WOCtjKAY7aJSWXiv7BcgnK4bi5JhLygfQo64xo0bbXKKHQAbjgrgnvtto JUSZYOT6as0RP9LvDlvj3NOZZXoRJc/5uA86Pg0Ygh7GoZ8p6vjhAiLcUNdu1W6ZCokMiNEhaewxE xA7dQsdD5xjE2K2lUlBrH9pu3DdpJcXeR2S1O1Em9+2PRww3nnHA7W4JgxWjm/IDJmtUc4D/oJtf6 x5XtILzPwJuTYWCMQjfIuHjW1Mjs4yLrc6E9rllBGBCj9pHQ0+CXcjqAbnlhVzdTsitwf6AzWTxoQ 5WufCAGA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vutUp-00000002EQb-2lgz; Tue, 24 Feb 2026 14:34:43 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vutUo-00000002EQM-2Pco; Tue, 24 Feb 2026 14:34:42 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id B165461119; Tue, 24 Feb 2026 14:34:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id EE404C116D0; Tue, 24 Feb 2026 14:34:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771943681; bh=ONrZv/Iu6JWBztYdh+If2jwoZaKJW0Rj0z5BS5znOgA=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=QIay9dhOkmQuG3tnDjLlIFjJjdqNNX28pHW5hV13zcYYTXRuNob0DmAFubY7ELLwM JrlocQ3+VZ3H6U0FR+8CKOnu7nxLPILtXgsVZJQ4grj1xqj+MZjtQMLhuIPuA1LRzf HskFXf5m6YCduHz3G1b+/ahmyp9BQi3eSKNZDsptcgWN1bRQuIrmA1GbnZ7+iD29Hs n+4PUn8s+WrTDENwUajLTmSZ0z/pAJRWwYwe/b1bkvboFXXKZfqkL+CdPfsyoRqzUf q+x9v/Xe6B8T5Uw9XMjnw7C95JKHE3mYkOZf7fkUZsCoroZMnxLq6QdzT+1sYPi9Cm R9xYGX2hx0Z8Q== Message-ID: <1cdc36f2-6e51-492a-9063-7d0a784f5118@kernel.org> Date: Tue, 24 Feb 2026 15:34:36 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 1/3] media: dt-bindings: rockchip,vdec: Correct reg-names order for RK35{76,88} To: Cristian Ciocaltea , Nicolas Dufresne Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , Detlev Casanova , Ezequiel Garcia , Mauro Carvalho Chehab , Hans Verkuil , kernel@collabora.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Conor Dooley , linux-media@vger.kernel.org References: <20260223-vdec-reg-order-rk3576-v2-0-daf4942dfc02@collabora.com> <20260223-vdec-reg-order-rk3576-v2-1-daf4942dfc02@collabora.com> <20260224-saffron-peccary-from-heaven-2d5e6e@quoll> <244b22d3be77047163b4e47c4ed33b5b1befb4b4.camel@collabora.com> <0874bb3d-b38d-4ea3-a5b0-2da2484cc3e5@kernel.org> <0c9a158a-f70e-461c-900b-6f6485064a02@collabora.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; keydata= xsFNBFVDQq4BEAC6KeLOfFsAvFMBsrCrJ2bCalhPv5+KQF2PS2+iwZI8BpRZoV+Bd5kWvN79 cFgcqTTuNHjAvxtUG8pQgGTHAObYs6xeYJtjUH0ZX6ndJ33FJYf5V3yXqqjcZ30FgHzJCFUu JMp7PSyMPzpUXfU12yfcRYVEMQrmplNZssmYhiTeVicuOOypWugZKVLGNm0IweVCaZ/DJDIH gNbpvVwjcKYrx85m9cBVEBUGaQP6AT7qlVCkrf50v8bofSIyVa2xmubbAwwFA1oxoOusjPIE J3iadrwpFvsZjF5uHAKS+7wHLoW9hVzOnLbX6ajk5Hf8Pb1m+VH/E8bPBNNYKkfTtypTDUCj NYcd27tjnXfG+SDs/EXNUAIRefCyvaRG7oRYF3Ec+2RgQDRnmmjCjoQNbFrJvJkFHlPeHaeS BosGY+XWKydnmsfY7SSnjAzLUGAFhLd/XDVpb1Een2XucPpKvt9ORF+48gy12FA5GduRLhQU vK4tU7ojoem/G23PcowM1CwPurC8sAVsQb9KmwTGh7rVz3ks3w/zfGBy3+WmLg++C2Wct6nM Pd8/6CBVjEWqD06/RjI2AnjIq5fSEH/BIfXXfC68nMp9BZoy3So4ZsbOlBmtAPvMYX6U8VwD TNeBxJu5Ex0Izf1NV9CzC3nNaFUYOY8KfN01X5SExAoVTr09ewARAQABzSVLcnp5c3p0b2Yg S296bG93c2tpIDxrcnprQGtlcm5lbC5vcmc+wsGVBBMBCgA/AhsDBgsJCAcDAgYVCAIJCgsE FgIDAQIeAQIXgBYhBJvQfg4MUfjVlne3VBuTQ307QWKbBQJoF1BKBQkWlnSaAAoJEBuTQ307 QWKbHukP/3t4tRp/bvDnxJfmNdNVn0gv9ep3L39IntPalBFwRKytqeQkzAju0whYWg+R/rwp +r2I1Fzwt7+PTjsnMFlh1AZxGDmP5MFkzVsMnfX1lGiXhYSOMP97XL6R1QSXxaWOpGNCDaUl ajorB0lJDcC0q3xAdwzRConxYVhlgmTrRiD8oLlSCD5baEAt5Zw17UTNDnDGmZQKR0fqLpWy 786Lm5OScb7DjEgcA2PRm17st4UQ1kF0rQHokVaotxRM74PPDB8bCsunlghJl1DRK9s1aSuN hL1Pv9VD8b4dFNvCo7b4hfAANPU67W40AaaGZ3UAfmw+1MYyo4QuAZGKzaP2ukbdCD/DYnqi tJy88XqWtyb4UQWKNoQqGKzlYXdKsldYqrLHGoMvj1UN9XcRtXHST/IaLn72o7j7/h/Ac5EL 8lSUVIG4TYn59NyxxAXa07Wi6zjVL1U11fTnFmE29ALYQEXKBI3KUO1A3p4sQWzU7uRmbuxn naUmm8RbpMcOfa9JjlXCLmQ5IP7Rr5tYZUCkZz08LIfF8UMXwH7OOEX87Y++EkAB+pzKZNNd hwoXulTAgjSy+OiaLtuCys9VdXLZ3Zy314azaCU3BoWgaMV0eAW/+gprWMXQM1lrlzvwlD/k whyy9wGf0AEPpLssLVt9VVxNjo6BIkt6d1pMg6mHsUEVzsFNBFVDXDQBEADNkrQYSREUL4D3 Gws46JEoZ9HEQOKtkrwjrzlw/tCmqVzERRPvz2Xg8n7+HRCrgqnodIYoUh5WsU84N03KlLue MNsWLJBvBaubYN4JuJIdRr4dS4oyF1/fQAQPHh8Thpiz0SAZFx6iWKB7Qrz3OrGCjTPcW6ei OMheesVS5hxietSmlin+SilmIAPZHx7n242u6kdHOh+/SyLImKn/dh9RzatVpUKbv34eP1wA GldWsRxbf3WP9pFNObSzI/Bo3kA89Xx2rO2roC+Gq4LeHvo7ptzcLcrqaHUAcZ3CgFG88CnA 6z6lBZn0WyewEcPOPdcUB2Q7D/NiUY+HDiV99rAYPJztjeTrBSTnHeSBPb+qn5ZZGQwIdUW9 YegxWKvXXHTwB5eMzo/RB6vffwqcnHDoe0q7VgzRRZJwpi6aMIXLfeWZ5Wrwaw2zldFuO4Dt 91pFzBSOIpeMtfgb/Pfe/a1WJ/GgaIRIBE+NUqckM+3zJHGmVPqJP/h2Iwv6nw8U+7Yyl6gU BLHFTg2hYnLFJI4Xjg+AX1hHFVKmvl3VBHIsBv0oDcsQWXqY+NaFahT0lRPjYtrTa1v3tem/ JoFzZ4B0p27K+qQCF2R96hVvuEyjzBmdq2esyE6zIqftdo4MOJho8uctOiWbwNNq2U9pPWmu 4vXVFBYIGmpyNPYzRm0QPwARAQABwsF8BBgBCgAmAhsMFiEEm9B+DgxR+NWWd7dUG5NDfTtB YpsFAmgXUF8FCRaWWyoACgkQG5NDfTtBYptO0w//dlXJs5/42hAXKsk+PDg3wyEFb4NpyA1v qmx7SfAzk9Hf6lWwU1O6AbqNMbh6PjEwadKUk1m04S7EjdQLsj/MBSgoQtCT3MDmWUUtHZd5 RYIPnPq3WVB47GtuO6/u375tsxhtf7vt95QSYJwCB+ZUgo4T+FV4hquZ4AsRkbgavtIzQisg Dgv76tnEv3YHV8Jn9mi/Bu0FURF+5kpdMfgo1sq6RXNQ//TVf8yFgRtTUdXxW/qHjlYURrm2 H4kutobVEIxiyu6m05q3e9eZB/TaMMNVORx+1kM3j7f0rwtEYUFzY1ygQfpcMDPl7pRYoJjB dSsm0ZuzDaCwaxg2t8hqQJBzJCezTOIkjHUsWAK+tEbU4Z4SnNpCyM3fBqsgYdJxjyC/tWVT AQ18NRLtPw7tK1rdcwCl0GFQHwSwk5pDpz1NH40e6lU+NcXSeiqkDDRkHlftKPV/dV+lQXiu jWt87ecuHlpL3uuQ0ZZNWqHgZoQLXoqC2ZV5KrtKWb/jyiFX/sxSrodALf0zf+tfHv0FZWT2 zHjUqd0t4njD/UOsuIMOQn4Ig0SdivYPfZukb5cdasKJukG1NOpbW7yRNivaCnfZz6dTawXw XRIV/KDsHQiyVxKvN73bThKhONkcX2LWuD928tAR6XMM2G5ovxLe09vuOzzfTWQDsm++9UKF a/A= In-Reply-To: <0c9a158a-f70e-461c-900b-6f6485064a02@collabora.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 24/02/2026 15:07, Cristian Ciocaltea wrote: > On 2/24/26 3:54 PM, Krzysztof Kozlowski wrote: >> On 24/02/2026 14:48, Nicolas Dufresne wrote: >>> Le mardi 24 février 2026 à 14:18 +0100, Krzysztof Kozlowski a écrit : >>>> On 24/02/2026 14:14, Nicolas Dufresne wrote: >>>>>>> >>>>>>> reg-names: >>>>>>> - items: >>>>>>> + oneOf: >>>>>>> - const: function >>>>>>> - - const: link >>>>>>> - - const: cache >>>>>>> + - items: >>>>>>> + - const: link >>>>>>> + - const: function >>>>>>> + - const: cache >>>>>> >>>>>> No, ABI break without point. >>>>> >>>>> Its not released yet, otherwise both order would need to be allowed. >>>>> >>>> Also, not true. >>>> >>>> git describe --contains c6ffb7e1fb90 >>>> v6.17-rc1~90^2~3 >>> >>> Ack, I thought this was part of 7.0, it would have been logical to be part of >>> 7.0-rc1 I must say. Whatever happen, backward compat will unfortunatly be >>> needed. >> >> >> I was here checking the binding, so the ABI. DTS maybe was in v7.0-rc1 >> indeed. Anyway, the commit msg should describe the impact on users of >> this ABI, at least known users. > > My bad, I only checked the DTS changes which landed in v7.0-rc1, and wrongly > assumed the binding also landed about the same time. I think it's unlikely > there are any (external) users of this binding, but obviously we cannot be 100% > sure. > > Would it be acceptable to extend the binding so that it allows both the current > and the new proposed order to coexist? Depends also on the drivers and that's your "users analysis" should cover. If there are no known released users of relatively new ABI, it is fine to propose the change with such explanation and reason - poor hardware description because convention expects the main device's address to be used as first "reg" entry. You can have also oneOf with older list "deprecated: true", if want to keep any users unaffected. Best regards, Krzysztof