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 23EC92F692A; Mon, 20 Oct 2025 10:16:35 +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=1760955396; cv=none; b=LNrXRDKFqK848d/T0DRewUNDTNmYE5YV3JOOL/0OTkt4b95oySJg7fpK6iSXlXy1q5N+RzjyKXwiD/6yBtFs3tfVXGZ/kBxkBvWILIS7nc62Mb/e2OJsiewSH6LVf9hdJ3GR5Jlm5snwTrFmLkZ4N9ixGB9uczQzgeYWlwiyPjk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760955396; c=relaxed/simple; bh=82G7aGi9lDAHGULL7xGtb9XMl5+EFmaPujI2gm5BSLc=; h=Message-ID:Date:MIME-Version:Subject:From:To:Cc:References: In-Reply-To:Content-Type; b=plu0uwNw4INVLiHqnoIj0Ut2qINLSUVB06KqF0IODToht/2ewdVqYMJH1yImaJ6d6AfpeFA+9dfNIVYDaDvrKy3e1BSgPHBsPm1njBTH99HZLqdp7Md0Wi6ibd6r+c5QHA2wQo7RIykRyXz+g1twfoz7eLhdmpvd1/bpr4VjeRM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FnFD3p3z; 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="FnFD3p3z" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5F496C116C6; Mon, 20 Oct 2025 10:16:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1760955395; bh=82G7aGi9lDAHGULL7xGtb9XMl5+EFmaPujI2gm5BSLc=; h=Date:Subject:From:To:Cc:References:In-Reply-To:From; b=FnFD3p3zzpVKp75GQYzSznkwUphjg7sSBNDkt2iZro2kDrnx4MwC9GJlXbs4XeU+D grZq5fMmGktfFryfBwqwnClMl7Nfj9HXGwshEjDm9tAcOlPKTXNarA2SLoJldkE4kS K7B2KJPR5R5HTZGip7OraT1lNe9h5i1aVQtOtP9L130bffRuzo65A0XLXIGysi2bJJ gFpKH1jjmZQ7UxmwfITcbvwZ3BSibgszcBdlFIuEdbEm0YsbdEl3As8vs1RnBm/63h E8ZoLq//OpL/BfNAv4OgcRmG7lfr4Ll/Xp3VVfzERLKMq3yNqLGV0aQ148r7edF28Y tSU7wRo5prhQA== Message-ID: <7140b8a8-1380-4859-84a3-681b3f1ce505@kernel.org> Date: Mon, 20 Oct 2025 12:16:28 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/6] dt-bindings: media: camss: Add qcom,kaanapali-camss binding From: Krzysztof Kozlowski To: Loic Poulain Cc: Hangxiang Ma , Jingyi Wang , Bryan O'Donoghue , Robert Foss , Andi Shyti , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bryan O'Donoghue , Todor Tomov , Vladimir Zapolskiy , Mauro Carvalho Chehab , linux-i2c@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, aiqun.yu@oss.qualcomm.com, tingwei.zhang@oss.qualcomm.com, trilok.soni@oss.qualcomm.com, yijie.yang@oss.qualcomm.com References: <20250924-knp-cam-v1-0-b72d6deea054@oss.qualcomm.com> <20250924-knp-cam-v1-2-b72d6deea054@oss.qualcomm.com> Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 8bit On 16/10/2025 12:43, Krzysztof Kozlowski wrote: > On 16/10/2025 10:47, Loic Poulain wrote: >> On Thu, Oct 16, 2025 at 7:52 AM Krzysztof Kozlowski wrote: >>> >>> On 15/10/2025 05:21, Hangxiang Ma wrote: >>>>>> + - const: csiphy4 >>>>>> + - const: csiphy5 >>>>>> + - const: vfe0 >>>>>> + - const: vfe1 >>>>>> + - const: vfe2 >>>>>> + - const: vfe_lite0 >>>>>> + - const: vfe_lite1 >>>>> Wouldn't it make sense to simplify this and have different camss nodes >>>>> for the 'main' and 'lite' paths? >>>>> >>>>> [...] >>>> No such plan till now. Other series may take this into consideration. >>> >>> We don't care much about your plan. You are expected to send correct >>> hardware description. >> >> To be fair, other platforms like sc8280xp-camss already have the >> all-in big camss node. >> Point is that if Lite and Main blocks are distinct enough we could >> have two simpler nodes. >> Would it make things any better from a dts and camss perspective? >> >> camss: isp@9253000 { >> compatible = "qcom,kaanapali-camss"; >> [...] >> } >> >> camss-lite:ips@9273000 { >> compatible = "qcom,kaanapali-lite-camss"; >> [...] >> } >> >> That approach would create two distinct CAMSS instances and separate >> media pipelines. >> However, it may not work with the current implementation, as the CSI >> PHYs would need to be shared between them. >> >> I guess this should be part of the broader discussion around >> splitting/busifying CAMSS. > > And this discussion CAN happen now, stopping this camss and any future > camss till we conclude the discussion. Whatever internal plans of that > teams are, rejecting technical discussion based on "no plans for that" > is a really bad argument, only stalling this patchset and raising eyebrows. To be clear, I expect Loic's comment to be fully and technically addressed, not with "no plan for that". This blocks this patchset and any new versions. Best regards, Krzysztof