1Kernel driver tc654 2=================== 3 4Supported chips: 5 * Microchip TC654 and TC655 6 Prefix: 'tc654' 7 Datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/20001734C.pdf 8 9Authors: 10 Chris Packham <chris.packham@alliedtelesis.co.nz> 11 Masahiko Iwamoto <iwamoto@allied-telesis.co.jp> 12 13Description 14----------- 15This driver implements support for the Microchip TC654 and TC655. 16 17The TC654 uses the 2-wire interface compatible with the SMBUS 2.0 18specification. The TC654 has two (2) inputs for measuring fan RPM and 19one (1) PWM output which can be used for fan control. 20 21Configuration Notes 22------------------- 23Ordinarily the pwm1_mode ABI is used for controlling the pwm output 24mode. However, for this chip the output is always pwm, and the 25pwm1_mode determines if the pwm output is controlled via the pwm1 value 26or via the Vin analog input. 27 28 29Setting pwm1_mode to 1 will cause the pwm output to be driven based on 30the pwm1 value. Setting pwm1_mode to 0 will cause the pwm output to be 31driven based on the Vin input. 32