1Kernel driver bel-pfe
  2======================
  3
  4Supported chips:
  5
  6  * BEL PFE1100
  7
  8    Prefixes: 'pfe1100'
  9
 10    Addresses scanned: -
 11
 12    Datasheet: https://www.belfuse.com/resources/datasheets/powersolutions/ds-bps-pfe1100-12-054xa.pdf
 13
 14  * BEL PFE3000
 15
 16    Prefixes: 'pfe3000'
 17
 18    Addresses scanned: -
 19
 20    Datasheet: https://www.belfuse.com/resources/datasheets/powersolutions/ds-bps-pfe3000-series.pdf
 21
 22Author: Tao Ren <rentao.bupt@gmail.com>
 23
 24
 25Description
 26-----------
 27
 28This driver supports hardware monitoring for below power supply devices
 29which support PMBus Protocol:
 30
 31  * BEL PFE1100
 32
 33    1100 Watt AC to DC power-factor-corrected (PFC) power supply.
 34    PMBus Communication Manual is not publicly available.
 35
 36  * BEL PFE3000
 37
 38    3000 Watt AC/DC power-factor-corrected (PFC) and DC-DC power supply.
 39    PMBus Communication Manual is not publicly available.
 40
 41The driver is a client driver to the core PMBus driver. Please see
 42Documentation/hwmon/pmbus.rst for details on PMBus client drivers.
 43
 44
 45Usage Notes
 46-----------
 47
 48This driver does not auto-detect devices. You will have to instantiate the
 49devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
 50details.
 51
 52Example: the following will load the driver for an PFE3000 at address 0x20
 53on I2C bus #1::
 54
 55	$ modprobe bel-pfe
 56	$ echo pfe3000 0x20 > /sys/bus/i2c/devices/i2c-1/new_device
 57
 58
 59Platform data support
 60---------------------
 61
 62The driver supports standard PMBus driver platform data.
 63
 64
 65Sysfs entries
 66-------------
 67
 68======================= =======================================================
 69curr1_label		"iin"
 70curr1_input		Measured input current
 71curr1_max               Input current max value
 72curr1_max_alarm         Input current max alarm
 73
 74curr[2-3]_label		"iout[1-2]"
 75curr[2-3]_input		Measured output current
 76curr[2-3]_max           Output current max value
 77curr[2-3]_max_alarm     Output current max alarm
 78
 79fan[1-2]_input          Fan 1 and 2 speed in RPM
 80fan1_target             Set fan speed reference for both fans
 81
 82in1_label		"vin"
 83in1_input		Measured input voltage
 84in1_crit		Input voltage critical max value
 85in1_crit_alarm		Input voltage critical max alarm
 86in1_lcrit               Input voltage critical min value
 87in1_lcrit_alarm         Input voltage critical min alarm
 88in1_max                 Input voltage max value
 89in1_max_alarm           Input voltage max alarm
 90
 91in2_label               "vcap"
 92in2_input               Hold up capacitor voltage
 93
 94in[3-8]_label		"vout[1-3,5-7]"
 95in[3-8]_input		Measured output voltage
 96in[3-4]_alarm           vout[1-2] output voltage alarm
 97
 98power[1-2]_label	"pin[1-2]"
 99power[1-2]_input        Measured input power
100power[1-2]_alarm	Input power high alarm
101
102power[3-4]_label	"pout[1-2]"
103power[3-4]_input	Measured output power
104
105temp[1-3]_input		Measured temperature
106temp[1-3]_alarm         Temperature alarm
107======================= =======================================================
108
109.. note::
110
111    - curr3, fan2, vout[2-7], vcap, pin2, pout2 and temp3 attributes only
112      exist for PFE3000.