[PATCH v11 0/6] Add interconnect driver for IPQ9574 SoC
From: Varadarajan Narayanan <hidden>
Date: 2024-04-30 06:42:38
MSM platforms manage NoC related clocks and scaling from RPM. However, in IPQ SoCs, RPM is not involved in managing NoC related clocks and there is no NoC scaling. However, there is a requirement to enable some NoC interface clocks for the accessing the peripherals present in the system. Hence add a minimalistic interconnect driver that establishes a path from the processor/memory to those peripherals and vice versa. Change icc-clk driver to take master and slave ids instead of auto generating. Currently, drivers/clk/qcom/clk-cbf-8996.c is the only user of icc-clk. And, it had exactly one master and one slave node. For this the auto generated master (= 1) and slave (= 0) was enough. However, when drivers/clk/qcom/gcc-ipq9574.c wanted to make use of the icc-clk framework, it had more number of master and slave nodes and the auto generated ids did not suit the usage. --- v11: No code changes Commit log changed for the first patch Added Acked-By: to 3 patches v10: Set gcc-ipq9574 driver's sync_state to icc_sync_state v9: Squash icc-clk driver change and cbf-msm8996 change Remove HWS_DATA macro v8: Change icc-clk driver to take master and slave ids instead of auto generating Remove ICC_xxx defines from dt-bindings header Define MASTER/SLAVE_xxx macros from 0 .. n v7: Fix macro names in dt-bindings header Do clock get in icc driver v6: Removed 'Reviewed-by: Krzysztof' from dt-bindings patch Remove clock get from ICC driver as suggested by Stephen Boyd so that the actual peripheral can do the clock get first_id -> icc_first_node_id Remove tristate from INTERCONNECT_CLK v5: Split gcc-ipq9574.c and common.c changes into separate patches Introduce devm_icc_clk_register Fix error handling v4: gcc-ipq9574.c Use clk_hw instead of indices common.c Do icc register in qcom_cc_probe() call stream common.h Add icc clock info to qcom_cc_desc structure v3: qcom,ipq9574.h Move 'first id' define to clock driver gcc-ipq9574.c: Use indexed identifiers here to avoid confusion Fix error messages and move code to common.c as it can be shared with future SoCs v2: qcom,ipq9574.h Fix license identifier Rename macros qcom,ipq9574-gcc.yaml Include interconnect-cells gcc-ipq9574.c Update commit log Remove IS_ENABLED(CONFIG_INTERCONNECT) and auto select it from Kconfig ipq9574.dtsi Moved to separate patch Include interconnect-cells to clock controller node drivers/clk/qcom/Kconfig: Auto select CONFIG_INTERCONNECT & CONFIG_INTERCONNECT_CLK Varadarajan Narayanan (6): interconnect: icc-clk: Specify master/slave ids dt-bindings: interconnect: Add Qualcomm IPQ9574 support interconnect: icc-clk: Add devm_icc_clk_register clk: qcom: common: Add interconnect clocks support clk: qcom: ipq9574: Use icc-clk for enabling NoC related clocks arm64: dts: qcom: ipq9574: Add icc provider ability to gcc .../bindings/clock/qcom,ipq9574-gcc.yaml | 3 + arch/arm64/boot/dts/qcom/ipq9574.dtsi | 2 + drivers/clk/qcom/Kconfig | 2 + drivers/clk/qcom/clk-cbf-8996.c | 7 ++- drivers/clk/qcom/common.c | 35 ++++++++++- drivers/clk/qcom/common.h | 9 +++ drivers/clk/qcom/gcc-ipq9574.c | 33 +++++++++++ drivers/interconnect/icc-clk.c | 24 +++++++- .../dt-bindings/interconnect/qcom,ipq9574.h | 59 +++++++++++++++++++ include/linux/interconnect-clk.h | 4 ++ 10 files changed, 173 insertions(+), 5 deletions(-) create mode 100644 include/dt-bindings/interconnect/qcom,ipq9574.h -- 2.34.1