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Fri, 06 Nov 2026 03:24:26 -0800 (PST) Received: from [192.168.0.167] ([109.77.115.215]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4b741cdd8d7sm27597265e9.1.2026.11.06.03.24.25 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 06 Nov 2026 03:24:25 -0800 (PST) Message-ID: <1fd0e1a9-ef5a-4fb8-8c55-556b62b73ace@linaro.org> Date: Fri, 6 Nov 2026 11:24:24 +0000 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: Andrew Gigena Cc: Vladimir Zapolskiy , 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> From: Bryan O'Donoghue Content-Language: en-GB In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit 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. TBH adding a single new enum to a switch is a much better immediate outcome. Happy to take a SoC enablement now and work-up the switch of older binginds to new over time. --- bod