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[91.159.24.186]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-3acf5fca873sm2468511fa.30.2026.11.06.03.30.08 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 06 Nov 2026 03:30:08 -0800 (PST) Message-ID: <6f206d24-8e63-486f-80ae-68503f3e3c53@linaro.org> Date: Fri, 6 Nov 2026 13:30:07 +0200 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/4] dt-bindings: media: qcom,sm8150-camss: Add SM8150 CAMSS To: Bryan O'Donoghue , Andrew Gigena Cc: Loic Poulain , Robert Foss , Andi Shyti , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bryan O'Donoghue , Mauro Carvalho Chehab , Bjorn Andersson , Konrad Dybcio , Abel Vesa , linux-arm-msm@vger.kernel.org, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org References: <20261104-sm8150-v7-4-rc1-camss-v1-0-7a9534a9a22f@andrewgigena.dev> <20261104-sm8150-v7-4-rc1-camss-v1-2-7a9534a9a22f@andrewgigena.dev> <904675e8-701d-4fd6-b418-6c0dcc9288b9@linaro.org> <5ba03b8e-1d51-4e66-a802-37e63814f5d5@linaro.org> <1fd0e1a9-ef5a-4fb8-8c55-556b62b73ace@linaro.org> From: Vladimir Zapolskiy In-Reply-To: <1fd0e1a9-ef5a-4fb8-8c55-556b62b73ace@linaro.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 11/6/26 13:24, Bryan O'Donoghue wrote: > On 06/11/2026 03:06, Andrew Gigena wrote: >> Hi Vladimir, Bryan, >> >> Thank you both for the review and for taking the time to explain the >> direction. >> >> Vladimir: I understand your point about the stand-alone CSI2 PHY model, >> and I agree that is where CAMSS should go. I hope this series does not >> give the impression of entrenching the legacy description; that is not >> my intention. My concern is that I don't think I can do the PHY-API >> conversion properly within this series: as far as I can see, >> qcom-mipi-csi2 currently only carries the x1e80100/glymur >> configuration and no upstream DTS uses the PHY-API path yet to take as >> a reference point. >> Converting SM8150 would also affect the other CAMSS SoCs that >> still use the legacy description, so it looks like a separate and >> larger piece of work. >> >> If I'm missing something, or if there is an existing branch or series I >> should base that work on, I would be grateful for a pointer. I would >> also be glad to help with the conversion as a follow-up if that is the >> preferred path. >> >> Bryan: as the CAMSS maintainer, could you let me know what you would >> like me to do for this series? I am happy to keep the legacy CSIPHY >> description for now and follow up with the PHY-API conversion, or to >> fold it into this series if you think that is the right thing. I will >> follow your guidance. >> >> This is my first submission, so I appreciate the patience. >> >> In the meantime, I will send v2 with the review fixes so the series >> does not stall. >> >> Thanks, > > A) No top posting pretty please with sugar on top. > > B) Since we are reusing an existing PHY init sequence there is no need > to port all of that stuff into drivers/phy right now > > There are several complexities involved in porting existing bindings a > new topology whilst supporting the old. > That's exactly the reason why the new CAMSS changes shall rely only on the new CSIPHY layout only. -- Best wishes, Vladimir