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Fri, 29 May 2026 07:58:17 -0700 (PDT) Message-ID: <23d2a824-e894-4c26-8bd1-02bbb8a7c6d1@linaro.org> Date: Fri, 29 May 2026 15:58:16 +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 4/8] arm64: dts: qcom: shikra: Add CAMSS node To: Vikram Sharma , bod@kernel.org, Nihal Kumar Gupta Cc: Vladimir Zapolskiy , Loic Poulain , Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Robert Foss , Andi Shyti , Bjorn Andersson , Konrad Dybcio , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , linux-arm-msm@vger.kernel.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, Suresh Vankadara References: <20260526-shikra-camss-review-v1-0-645d2c8c75a7@qti.qualcomm.com> <20260526-shikra-camss-review-v1-4-645d2c8c75a7@qti.qualcomm.com> <178000689150.4557.11759359941436928903.b4-reply@b4> From: Bryan O'Donoghue Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 29/05/2026 15:52, Vikram Sharma wrote: > Shikra and Agatti are not iommu compatible in terms of Stream ID. Only VFE SID is same > for both. Agatti is documenting iommu for VFE, CDM and OPE. OPE is not yet enabled for > Shikra and in my opinion it should be added as a separate yaml similar to Agatti. > "https://lore.kernel.org/all/20260508-camss-isp-ope-v3-9- > bb1055274603@oss.qualcomm.com/" > > Regarding cdm iommu we have excluded it as we do not use it to program registers as of now. Which will be a problem as soon as CDM is attempted to be enabled and yaml changes are dropped upstream. Hmm then it seems to me that five is too many for Agatti's IOMMU set. I'd like a number list so that we are discussing facts instead of nebulous hypotheticals. For both Agatti and Shikra. --- bod