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Mon, 29 Dec 2025 18:29:22 -0800 (PST) Date: Mon, 29 Dec 2025 21:29:42 -0500 From: Richard Acayan To: Vladimir Zapolskiy Cc: Konrad Dybcio , Dmitry Baryshkov , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Sakari Ailus , Tianshu Qiu , Mauro Carvalho Chehab , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-media@vger.kernel.org, Robert Mader Subject: Re: [PATCH v4 5/5] arm64: dts: qcom: sdm670-google-sargo: add imx355 front camera Message-ID: References: <20251211014846.16602-6-mailingradian@gmail.com> <341012f3-18bd-4f96-98c1-f964d1fedb8f@oss.qualcomm.com> <1d830282-a778-44aa-918b-5ab3e1516c0d@linaro.org> <4c4e8e5b-66b1-4227-86ee-756eca945972@oss.qualcomm.com> <79e2bb5b-9bca-4712-87bb-e0371b36bf50@linaro.org> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <79e2bb5b-9bca-4712-87bb-e0371b36bf50@linaro.org> On Wed, Dec 17, 2025 at 05:11:11AM +0200, Vladimir Zapolskiy wrote: > On 12/17/25 03:41, Richard Acayan wrote: > > On Tue, Dec 16, 2025 at 05:23:53PM +0200, Vladimir Zapolskiy wrote: > > > For whatever reason CAMSS on SDM670 is very special, because IIRC there is no > > > other platform with preset status poperties of endpoints. This exclusive SDM670 > > > specifics shall be analysed and eliminated, since it hasn't been done during > > > patch review time, it's time to do it right now then. > > > > An SoC-common endpoint node is how panels are hooked up to DSI. This > > seems to be the case for SDM670, SDM845, SM8[123456]50, etc. > > It's not special or unpopular for DSI, but CAMSS seems to be the > > subsystem where an endpoint node pre-defined by the SoC is only in > > SDM670. > > Only SDM670 CAMSS endpoints contain 'status' property, not DSI, not > CAMSS on any other platform. This makes SDM670 CAMSS special, and as > I've said above this very odd exclusiveness should be eliminated. Oh, if everyone is actually fine with empty endpoints for CAMSS (`camss_endpoint0: endpoint {};` in SoC dtsi), it might be easier to patch the driver to accept this: https://lore.kernel.org/r/20251230022759.9449-1-mailingradian@gmail.com