Documentation: hwmon: Document the IBM CFF power supply

Kernel driver ibm-cffps

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Supported chips:

  * IBM Common Form Factor power supply

Author: Eddie James <eajames@us.ibm.com>

Description

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This driver supports IBM Common Form Factor (CFF) power supplies. This driver

is a client to the core PMBus driver.

Usage Notes

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This driver does not auto-detect devices. You will have to instantiate the

devices explicitly. Please see Documentation/i2c/instantiating-devices for

details.

Sysfs entries

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The following attributes are supported:

curr1_alarm		Output current over-current alarm.

curr1_input		Measured output current in mA.

curr1_label		"iout1"

fan1_alarm		Fan 1 warning.

fan1_fault		Fan 1 fault.

fan1_input		Fan 1 speed in RPM.

fan2_alarm		Fan 2 warning.

fan2_fault		Fan 2 fault.

fan2_input		Fan 2 speed in RPM.

in1_alarm		Input voltage under-voltage alarm.

in1_input		Measured input voltage in mV.

in1_label		"vin"

in2_alarm		Output voltage over-voltage alarm.

in2_input		Measured output voltage in mV.

in2_label		"vout1"

power1_alarm		Input fault or alarm.

power1_input		Measured input power in uW.

power1_label		"pin"

temp1_alarm		PSU inlet ambient temperature over-temperature alarm.

temp1_input		Measured PSU inlet ambient temp in millidegrees C.

temp2_alarm		Secondary rectifier temp over-temperature alarm.

temp2_input		Measured secondary rectifier temp in millidegrees C.

temp3_alarm		ORing FET temperature over-temperature alarm.

temp3_input		Measured ORing FET temperature in millidegrees C.