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