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Tue, 29 Sep 2026 04:44:02 -0700 (PDT) X-Received: by 2002:a05:620a:404d:b0:939:9f51:29a0 with SMTP id af79cd13be357-93c43ce6b41mr2573889185a.50.1790682241809; Tue, 29 Sep 2026 04:44:01 -0700 (PDT) Received: from [192.168.1.31] ([85.196.172.179]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4a00cf2d973sm86145495e9.0.2026.09.29.04.44.00 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 29 Sep 2026 04:44:01 -0700 (PDT) Message-ID: <63cc2480-a8b7-460f-b89d-8526cb17db36@oss.qualcomm.com> Date: Tue, 29 Sep 2026 14:43:58 +0300 Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 0/3] Add Qualcomm CAMNOC ICC provider To: Bryan O'Donoghue , Atanas Filipov , Georgi Djakov , linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org Cc: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Dmitry Baryshkov References: <20260819093211.1436275-1-atanas.filipov@oss.qualcomm.com> <8df7fdb2-813c-402c-99c0-9de6b0dbcd0e@kernel.org> Content-Language: en-US From: "Gjorgji Rosikopulos (Consultant)" In-Reply-To: <8df7fdb2-813c-402c-99c0-9de6b0dbcd0e@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: dIjITXrWOUZ7mVe2MDPfWW55WSMNTrU6 X-Proofpoint-GUID: dIjITXrWOUZ7mVe2MDPfWW55WSMNTrU6 X-Authority-Analysis: v=2.4 cv=Z+55j3RA c=1 sm=1 tr=0 ts=6abba483 cx=c_pps a=HLyN3IcIa5EE8TELMZ618Q==:117 a=Q/e3f29T3Hw2hnAEzBPF7w==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=R6d1XtvNd3bo7WazfPwA:9 a=QEXdDO2ut3YA:10 a=bTQJ7kPSJx9SKPbeHEYW:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTI5MDA0NiBTYWx0ZWRfX/yzpIJ06l2IK 8KwNC1RTEKKxgaZSAlBerKPq1PPYAe5vwo56Hv3oJqP9hCsDQ0VR3Fki+4y/YgANGQhSznIH1OZ HMWc9+JsLtDnJCUVn2FEeRmE0vErps0syJSOuDFkfidP5ORx6cfkhurUB4GgvJ5PxJ5mDKzOWA1 XDr61g7Gz8y5bKHQcb+GVemP2nSiLLAtVRE+l7/wdnq67383fPNFKEjnzw2xxcGwvg3XR2j8W6N gDkHZCob0T/uy0QDy65Xf8qFJ/nOYKCvia88Y/hUKjeE40qNXxmIiOGoNejkvpM2/hutg8gCZ9Y 2sbQ+TPEbHwC96DHSJiqBjnR+D1/K5OlT/W7VaW5pOOCsX46zf8mGEak/eiF2xRTjDPLRY34YSV NeCAFRoOimLTIk+MW0Gs/JIHQn9KwdiFaH8M88NiWX5Jf6mOqzc9ZPvPDmnVSpFs6XZoU6IQc51 tHyKIfiUdQpNqsPzj6w== X-Proofpoint-Spam-Info: AW1haW4tMjYwOTI5MDA0NiBTYWx0ZWRfX6gnbF40r/Dk8 /HDDl7XXd6X89nS3jSq7oaO/Ov4BE4qb+nUxQIZCUyscr57izR4M7W6jkxcab6OWFqtGqDI8Wf5 Quh6V9xOzX1RnkIKUMYByznIVJZYajU= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-29_04,2026-09-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 impostorscore=0 phishscore=0 bulkscore=0 malwarescore=0 suspectscore=0 clxscore=1015 lowpriorityscore=0 priorityscore=1501 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609290046 Hi Bryan, On 9/29/2026 11:39 AM, Bryan O'Donoghue wrote: > On 19/08/2026 10:32, Atanas Filipov wrote: >> This series adds a device tree binding and driver for the Qualcomm >> Camera Network-on-Chip (CAMNOC) interconnect provider for SM8250. >> >> CAMNOC is the internal AXI interconnect within the camera subsystem. >> Multiple camera sub-devices (IFE, JPEG, BPS, IPE, etc.) share >> CAM_CC_CAMNOC_AXI_CLK. Direct clk_set_rate() calls from each consumer >> cause a last-writer-wins race. This series introduces a lightweight ICC >> provider that aggregates bandwidth votes from all consumers and applies >> a single clk_set_rate() call. >> >> Changes since v1: >> - dt-bindings: add all SM8250 CAMNOC master port IDs to qcom,camnoc.h >> (IFE 0/1, IFE Lite 0-4, BPS, IPE 0/1, JPEG, JPEG DMA, CDM, FD, SBI, >> ICP) with a short comment per group (Dmitry Baryshkov) >> - dt-bindings: add IFE simple consumer example alongside the JPEG >> OPP-based example; clarify opp-hz and opp-peak-kBps semantics in >> comments; fix maintainer email; align provider node name with DTS >> - driver: register all SM8250 CAMNOC master nodes >> >> Atanas Filipov (3): >> dt-bindings: interconnect: Add Qualcomm CAMNOC ICC binding >> interconnect: qcom: Add CAMNOC interconnect provider driver >> arm64: dts: qcom: sm8250: Add CAMNOC ICC provider node >> >> .../bindings/interconnect/qcom,camnoc.yaml | 124 ++++++++ >> arch/arm64/boot/dts/qcom/sm8250.dtsi | 8 + >> drivers/interconnect/qcom/Kconfig | 10 + >> drivers/interconnect/qcom/Makefile | 2 + >> drivers/interconnect/qcom/qcom-camnoc.c | 279 ++++++++++++++++++ >> .../dt-bindings/interconnect/qcom,camnoc.h | 52 ++++ >> 6 files changed, 475 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/interconnect/qcom,camnoc.yaml >> create mode 100644 drivers/interconnect/qcom/qcom-camnoc.c >> create mode 100644 include/dt-bindings/interconnect/qcom,camnoc.h >> >> >> base-commit: 9e970952a9503d6ab471a2fea4c10b6a2785406f >> -- >> 2.34.1 >> >> > > I'd like to see the code for actually _using_ this in CAMSS, seems a bit > incomplete without that part. Yes the next patchset will include the CAMSS part. ~Gjorgji > > --- > bod