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

Atanas Filipov <[email protected]>
Newsgroups org.kernel.vger.linux-pm,org.kernel.vger.linux-arm-msm,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel
Message-ID <[email protected]>
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
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