From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 E3F6A3E8356; Fri, 4 Sep 2026 16:13:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788538394; cv=none; b=ZLORfykM0vp/E5xqCJdKoYBKwIyc8cPCp7kXmePGKyNPTpzQ+LjQF7PwX74ez3xsKeU4KuzEqzeZy96qWSwtejQSrNYkqkYTAVh3xEpVhrlLVza5a7CWrTaxL43GpGj3jSho3LhZdtG7UfUajpnT0QTtGT032odRgCBlvFSR9qE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788538394; c=relaxed/simple; bh=Wdau6pzSJ4Hn1JL28SR1mCaLnAAKsgBG++z8/J0bkrs=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=C/qqGdxG/fvg2LPbgCfZnBd6VHlDgQr3BDsH6u/OkKa83M7cnnRe58GOaWg8pjWxR1UZ3oh5MMgFGwb/YHjGtI5AExuw4K7I8zIMQdBZasCR3vznMlXQPuzUaBFNpbaIRQU7DM3hBzB5i1badYeJ0b6VO4sqRCmGKf4EvCzND0Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=bXcnqAbI; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="bXcnqAbI" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2A99F1F00A3F; Fri, 4 Sep 2026 16:13:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788538392; bh=lFm6IWT0Zg5qUTjYgWsAKTPLsujvuUUictmOZOAh8mE=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=bXcnqAbIlChfhEs3PONESgnIVxtHORjq8lRXX94v8ctKZwWGKIgYf+iZP3ZpwfUWJ OarXzG96DKOfTx+zhmClmvDqtoAZKtg0oYQUEYx1et4ZQFvVdzHLsUVvu3WFAoefhK c7BAPW3hTenoUZr+TEnwb5T2DilhT0UxfBB+0KLe7e9brkhd7ez2J3uq/KQQeRlEiy ROMnWY/ITiwfylaFJvAlCpJvbeJm9KOicKx538bcy6oHym9AayS1rdNHSQFY7X6fcr hRDjNz+M4oB0zDKmPf5zj3DIboNSfDrBbQjx+0UoaDbrFUYJ79vtwFUIQnqOic0hVp 4jZUFPdPvzMPw== Message-ID: <92afc051-3960-43c7-9104-159640a363cd@kernel.org> Date: Fri, 4 Sep 2026 17:13:07 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 07/13] arm64: dts: qcom: x1e80100-crd: Add ov08x40 RGB sensor on CSIPHY4 To: Nihal Kumar Gupta , Bryan O'Donoghue , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Vladimir Zapolskiy , Loic Poulain , Mauro Carvalho Chehab Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org References: <20260904-x1e-camss-csi2-phy-dtsi-v5-0-dc81d85b599d@linaro.org> <20260904-x1e-camss-csi2-phy-dtsi-v5-7-dc81d85b599d@linaro.org> <65c956d1-eadf-4bdb-bd66-0530421fda0f@oss.qualcomm.com> From: Bryan O'Donoghue Content-Language: en-GB Autocrypt: addr=bod@kernel.org; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 04/09/2026 17:03, Nihal Kumar Gupta wrote: > > On 04-09-2026 16:26, Bryan O'Donoghue wrote: >> + port@3 { >> + camss_csiphy4_inep: endpoint { >> + data-lanes = <0 1 2 3>; >> + remote-endpoint = <&csiphy4_out_ep>; >> + }; > Hi Bryan, > > camss_csiphy4_inep has data-lanes = <0 1 2 3> and csiphy4_in_ep on the > same physical link has data-lanes = <1 2 3 4>. Yes I'm aware of that and choose not to churn this. This is what the controller has always done - it only cares about the number of lanes in this mode not their value - in the old method it cares about the values too. ... Sigh, I can write a patch to count the number of lanes instead of what the code currently does. That way the old method and a new method based on +1 will not collide. One thing to note is that if the PHY mapped lanes <2 3> the camss side would not care if we represented that as <0 1> <1 2> or <2 3> since all it cares about after this series is the _number_ of lanes. That said it is less confusing to have a uniform numbering scheme at both ends. --- bod