8 Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX34440.pdf
10 PMBus 5-Channel Power-Supply Manager and Intelligent Fan Controller
13 Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX34441.pdf
15 PMBus Power-Supply Data Logger
18 Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX34446.pdf
20 PMBus 16-Channel V/I Monitor and 12-Channel Sequencer/Marginer
23 Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX34451.pdf
25 PMBus 12-Channel Voltage Monitor & Sequencer
28 Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX34460.pdf
30 PMBus 16-Channel Voltage Monitor & Sequencer
33 Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX34461.pdf
35 Author: Guenter Roeck <linux@roeck-us.net>
41 This driver supports hardware monitoring for Maxim MAX34440 PMBus 6-Channel
42 Power-Supply Manager, MAX34441 PMBus 5-Channel Power-Supply Manager
43 and Intelligent Fan Controller, and MAX34446 PMBus Power-Supply Data Logger.
44 It also supports the MAX34451, MAX34460, and MAX34461 PMBus Voltage Monitor &
45 Sequencers. The MAX34451 supports monitoring voltage or current of 12 channels
46 based on GIN pins. The MAX34460 supports 12 voltage channels, and the MAX34461
47 supports 16 voltage channels.
49 The driver is a client driver to the core PMBus driver. Please see
50 Documentation/hwmon/pmbus for details on PMBus client drivers.
56 This driver does not auto-detect devices. You will have to instantiate the
57 devices explicitly. Please see Documentation/i2c/instantiating-devices for
60 For MAX34446, the value of the currX_crit attribute determines if current or
61 voltage measurement is enabled for a given channel. Voltage measurement is
62 enabled if currX_crit is set to 0; current measurement is enabled if the
63 attribute is set to a positive value. Power measurement is only enabled if
64 channel 1 (3) is configured for voltage measurement, and channel 2 (4) is
65 configured for current measurement.
71 The driver supports standard PMBus driver platform data.
77 The following attributes are supported. Limits are read-write; all other
78 attributes are read-only.
80 in[1-6]_label "vout[1-6]".
81 in[1-6]_input Measured voltage. From READ_VOUT register.
82 in[1-6]_min Minimum Voltage. From VOUT_UV_WARN_LIMIT register.
83 in[1-6]_max Maximum voltage. From VOUT_OV_WARN_LIMIT register.
84 in[1-6]_lcrit Critical minimum Voltage. VOUT_UV_FAULT_LIMIT register.
85 in[1-6]_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT register.
86 in[1-6]_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status.
87 in[1-6]_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status.
88 in[1-6]_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT status.
89 in[1-6]_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT status.
90 in[1-6]_lowest Historical minimum voltage.
91 in[1-6]_highest Historical maximum voltage.
92 in[1-6]_reset_history Write any value to reset history.
94 MAX34446 only supports in[1-4].
96 curr[1-6]_label "iout[1-6]".
97 curr[1-6]_input Measured current. From READ_IOUT register.
98 curr[1-6]_max Maximum current. From IOUT_OC_WARN_LIMIT register.
99 curr[1-6]_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT register.
100 curr[1-6]_max_alarm Current high alarm. From IOUT_OC_WARNING status.
101 curr[1-6]_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status.
102 curr[1-4]_average Historical average current (MAX34446/34451 only).
103 curr[1-6]_highest Historical maximum current.
104 curr[1-6]_reset_history Write any value to reset history.
106 in6 and curr6 attributes only exist for MAX34440.
107 MAX34446 only supports curr[1-4].
109 power[1,3]_label "pout[1,3]"
110 power[1,3]_input Measured power.
111 power[1,3]_average Historical average power.
112 power[1,3]_highest Historical maximum power.
114 Power attributes only exist for MAX34446.
116 temp[1-8]_input Measured temperatures. From READ_TEMPERATURE_1 register.
117 temp1 is the chip's internal temperature. temp2..temp5
118 are remote I2C temperature sensors. For MAX34441, temp6
119 is a remote thermal-diode sensor. For MAX34440, temp6..8
120 are remote I2C temperature sensors.
121 temp[1-8]_max Maximum temperature. From OT_WARN_LIMIT register.
122 temp[1-8]_crit Critical high temperature. From OT_FAULT_LIMIT register.
123 temp[1-8]_max_alarm Temperature high alarm.
124 temp[1-8]_crit_alarm Temperature critical high alarm.
125 temp[1-8]_average Historical average temperature (MAX34446 only).
126 temp[1-8]_highest Historical maximum temperature.
127 temp[1-8]_reset_history Write any value to reset history.
129 temp7 and temp8 attributes only exist for MAX34440.
130 MAX34446 only supports temp[1-3].
132 MAX34451 supports attribute groups in[1-16] (or curr[1-16] based on input pins)
134 MAX34460 supports attribute groups in[1-12] and temp[1-5].
135 MAX34461 supports attribute groups in[1-16] and temp[1-5].