From mboxrd@z Thu Jan 1 00:00:00 1970 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.subspace.kernel.org (Postfix) with ESMTPS id 61DCB17A2EA; Thu, 12 Jun 2025 11:02:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749726152; cv=none; b=L7aF5zxMnMlcUtpuRETdSJTFdNOaqOIlIN2Vlh5qgl+DQux3Ekucw7Q0J1cTKA/NyEzfzWJXDc10Z3ed5Szq58T/YJPsxtpZewjhZJahvNLSkrXBb6mwLhV5WJAw19656b3aGE1sfKRFDibxgTY2Ara9HpLOnhlHFjgMfKaHaA4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749726152; c=relaxed/simple; bh=2229ea5WbGCr+bkdJYi3fVs4L9fTm+iTKUI3f075qNA=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=uT2e9SNYGcxPIq+WsQkccPhaCbtteu2O2kmOZtWVSApNj+qu6oyUV0SftC4B1GUw81CqyJCC+E1SKPnBTvnOo1qB4qdJXfibKtR3d8V0pS3qKryiG6rIzZWryJ62orWQemCg/RJH6/F4K3sOkJRfn76z00Q/4NnSvug942lOGts= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=JGNvwFWF; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="JGNvwFWF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0A330C4CEED; Thu, 12 Jun 2025 11:02:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1749726151; bh=2229ea5WbGCr+bkdJYi3fVs4L9fTm+iTKUI3f075qNA=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=JGNvwFWFpyuZ2dFUcfyrZdVtdNCJeEI6SKb4KV9ArATjDYdVehtv1XdRWh3zMaJsF tO1sxZK8L41DJ9kk/whBUyxaJzOqPuaVkD/58QTSTKvskeQ5/n+WzKjzkfMdLH1ery nOoqT0G51w2R1BczftZcuSL5l1AWKuEE17LeORFnIkiyicG5Ka7FIQ8rXSGf4LPbaC n8/7qX+jmnUS2/nrDhhTHj7kGmvLDCGYSnOokoln2/7uR5/g+MHRdTuyDZ7cVMpO4o FGQuIDP6SN/9NNSUutB3LoPV7VTQ8dKJ0cdRFQoqMYhxV6EazG40EU5lMtB7M946Ow ABqk6XbG2ak5g== Message-ID: Date: Thu, 12 Jun 2025 13:02:26 +0200 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 08/10] dt-bindings: media: qcom: Add Qualcomm MIPI C-/D-PHY schema for CSIPHY IPs To: Vladimir Zapolskiy , Krzysztof Kozlowski , Rob Herring , Bjorn Andersson , Konrad Dybcio , Bryan O'Donoghue Cc: Conor Dooley , Robert Foss , Todor Tomov , Mauro Carvalho Chehab , Neil Armstrong , Vinod Koul , linux-arm-msm@vger.kernel.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org References: <20250612011531.2923701-1-vladimir.zapolskiy@linaro.org> <20250612011531.2923701-9-vladimir.zapolskiy@linaro.org> <6e411e89-ce1e-4d6a-8d48-b800554f830e@kernel.org> <9e38a09b-1521-4196-b179-d29c62e143bc@linaro.org> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 12/06/2025 09:57, Vladimir Zapolskiy wrote: > On 6/12/25 10:39, Krzysztof Kozlowski wrote: >> On 12/06/2025 09:38, Krzysztof Kozlowski wrote: >>> On 12/06/2025 03:15, Vladimir Zapolskiy wrote: >>>> Add dt-binding schema for Qualcomm CAMSS CSIPHY IP, which provides >>>> MIPI C-PHY/D-PHY interfaces on Qualcomm SoCs. >>>> >>>> Signed-off-by: Vladimir Zapolskiy >>>> --- >>>> RFC verion of the change: >>>> * https://lore.kernel.org/all/20250513143918.2572689-1-vladimir.zapolskiy@linaro.org/ >>>> >>>> Changes from RFC to v1: >>>> * moved from phy/qcom,csiphy.yaml to media/qcom,csiphy.yaml, >>>> * added 'clock-names' property, >>>> * removed SM8250 CSIPHY specifics, a generic binding is good enough for now, >> >> >> Now I noticed this... weird change and clearly a no-go. >> >> Device binding cannot be generic, so it is not good enough for now. >> Please write specific bindings for specific hardware. >> > > Can I add platform specific changes on top of the displayed generic one > like in Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml > etc? > > The generic compatible is sufficienlty good for adding the enhanced > CSIPHY support to any currently present in the upstream platform CAMSS. > > Obviously I can rename it to something SoC-specific, but then a question > arises, if a selected platform has to be a totally new one in the upstream, > or it could be among any of platforms with a ready CAMSS, and a backward > compatibility is preserved by these series and the new CSIPHY dt bindings. Just use a specific compatible for the actual hardware this is being added for. I don't understand why this is different than all other work upstream. Best regards, Krzysztof