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- Kernel driver tc654
- ===================
- Supported chips:
- * Microchip TC654 and TC655
- Prefix: 'tc654'
- Datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/20001734C.pdf
- Authors:
- Chris Packham <chris.packham@alliedtelesis.co.nz>
- Masahiko Iwamoto <iwamoto@allied-telesis.co.jp>
- Description
- -----------
- This driver implements support for the Microchip TC654 and TC655.
- The TC654 uses the 2-wire interface compatible with the SMBUS 2.0
- specification. The TC654 has two (2) inputs for measuring fan RPM and
- one (1) PWM output which can be used for fan control.
- Configuration Notes
- -------------------
- Ordinarily the pwm1_mode ABI is used for controlling the pwm output
- mode. However, for this chip the output is always pwm, and the
- pwm1_mode determines if the pwm output is controlled via the pwm1 value
- or via the Vin analog input.
- Setting pwm1_mode to 1 will cause the pwm output to be driven based on
- the pwm1 value. Setting pwm1_mode to 0 will cause the pwm output to be
- driven based on the Vin input.
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