Hi, BWMON is a data bandwidth monitor providing throughput/bandwidth over certain interconnect links in a SoC. It might be used to gather current bus usage and vote for interconnect bandwidth, thus adjusting the bus speed based on actual usage. The work is built on top of Thara Gopinath's patches with several cleanups, changes and simplifications. This is "initial version", which means the work is not finished. The goal is to add support for further devices (version 5 of bwmon) and usage of devfreq governors, similarly to tegra30 devfreq driver. Best regards, Krzysztof Krzysztof Kozlowski (4): dt-bindings: interconnect: qcom,sdm845-cpu-bwmon: add BWMON device opp: Add apis to retrieve opps with interconnect bandwidth soc: qcom: icc-bwmon: Add bandwidth monitoring driver arm64: dts: qcom: sdm845: Add CPU BWMON .../interconnect/qcom,sdm845-cpu-bwmon.yaml | 105 ++++++ MAINTAINERS | 7 + arch/arm64/boot/dts/qcom/sdm845.dtsi | 60 ++++ drivers/opp/core.c | 120 +++++++ drivers/soc/qcom/Kconfig | 10 + drivers/soc/qcom/Makefile | 1 + drivers/soc/qcom/icc-bwmon.c | 328 ++++++++++++++++++ include/linux/pm_opp.h | 19 + 8 files changed, 650 insertions(+) create mode 100644 Documentation/devicetree/bindings/interconnect/qcom,sdm845-cpu-bwmon.yaml create mode 100644 drivers/soc/qcom/icc-bwmon.c -- 2.32.0
