V5 depend on below patches. - https://lore.kernel.org/patchwork/patch/1237642/ [Add helpers for enabling/disabling a path] - https://patchwork.kernel.org/patch/11491027/ [Add devm_of_icc_get() as exported API for users ] dt-binding patch for QUP drivers. - https://patchwork.kernel.org/patch/11534149/ [Convert QUP bindings to YAML and add ICC, pin swap doc] High level design: - QUP wrapper/common driver. Vote for QUP core on behalf of earlycon from probe. Remove BW vote during earlycon exit call - SERIAL driver. Vote only for CPU/CORE path because driver is in FIFO mode only Vote/unvote from qcom_geni_serial_pm func. Bump up the CPU vote from set_termios call based on real time need - I2C driver. Vote for CORE/CPU/DDR path Vote/unvote from runtime resume/suspend callback As bus speed for I2C is fixed from probe itself no need for bump up. - SPI QUP driver. Vote only for CPU/CORE path because driver is in FIFO mode only Vote/unvote from runtime resume/suspend callback Bump up CPU vote based on real time need per transfer. - QSPI driver. Vote only for CPU path Vote/unvote from runtime resume/suspend callback Bump up CPU vote based on real time need per transfer. Changes in V2: - Add devm_of_icc_get() API interconnect core. - Add ICC support to common driver to fix earlyconsole crash. Changes in V3: - Define common ICC APIs in geni-se driver and use it across geni based I2C,SPI and UART driver. Changes in V4: - Add a patch to ICC core to scale peak requirement as twice of average if it is not mentioned explicilty. Changes in V5: - As per Georgi's suggestion removed patch from ICC core for assuming peak_bw as twice of average when it's not mentioned, instead assume it equall to avg_bw and keep this assumption in ICC client itself. - As per Matthias suggestion use enum for GENI QUP ICC paths. Akash Asthana (7): soc: qcom: geni: Support for ICC voting soc: qcom-geni-se: Add interconnect support to fix earlycon crash i2c: i2c-qcom-geni: Add interconnect support spi: spi-geni-qcom: Add interconnect support tty: serial: qcom_geni_serial: Add interconnect support spi: spi-qcom-qspi: Add interconnect support arm64: dts: sc7180: Add interconnect for QUP and QSPI arch/arm64/boot/dts/qcom/sc7180.dtsi | 127 ++++++++++++++++++++++++++++ drivers/i2c/busses/i2c-qcom-geni.c | 29 ++++++- drivers/soc/qcom/qcom-geni-se.c | 155 ++++++++++++++++++++++++++++++++++ drivers/spi/spi-geni-qcom.c | 32 ++++++- drivers/spi/spi-qcom-qspi.c | 59 ++++++++++++- drivers/tty/serial/qcom_geni_serial.c | 38 ++++++++- include/linux/qcom-geni-se.h | 44 ++++++++++ 7 files changed, 478 insertions(+), 6 deletions(-) -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,\na Linux Foundation Collaborative Project
