Aspeed AST2600 is a server management SoC which has 16 PWM channels and 16 fan tacho channel. This series of patch provides AST2600 PWM/Fan tacho support in hwmon class. The driver provides a sysfs interface, and user can configure PWM duty cycle and read current FAN speed in RPM. Troy Lee (4): dt-bindings: hwmon: Add Aspeed AST2600 PWM/Fan ARM: dts: aspeed: Add Aspeed AST2600 PWM/Fan node in devicetree hwmon: Add Aspeed AST2600 support hwmon: Support Aspeed AST2600 PWM/Fan tachometer .../bindings/hwmon/aspeed2600-pwm-tacho.txt | 69 ++ Documentation/hwmon/aspeed_pwm_tachometer.rst | 24 + Documentation/hwmon/index.rst | 1 + arch/arm/boot/dts/aspeed-ast2600-evb.dts | 149 +++ arch/arm/boot/dts/aspeed-g6.dtsi | 10 + drivers/hwmon/Kconfig | 10 + drivers/hwmon/Makefile | 1 + drivers/hwmon/aspeed2600-pwm-tacho.c | 1053 +++++++++++++++++ 8 files changed, 1317 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/aspeed2600-pwm-tacho.txt create mode 100644 Documentation/hwmon/aspeed_pwm_tachometer.rst create mode 100644 drivers/hwmon/aspeed2600-pwm-tacho.c -- 2.17.1