Re: [PATCH v2 0/3] Add Qualcomm CAMNOC ICC provider

[Gjorgji Rosikopulos (Consultant)]

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