5 * Analog Devices ADM1075
8 Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1075.pdf
9 * Analog Devices ADM1272
12 Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1272.pdf
13 * Analog Devices ADM1275
16 Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1275.pdf
17 * Analog Devices ADM1276
20 Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1276.pdf
21 * Analog Devices ADM1278
24 Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1278.pdf
25 * Analog Devices ADM1293/ADM1294
26 Prefix: 'adm1293', 'adm1294'
28 Datasheet: http://www.analog.com/media/en/technical-documentation/data-sheets/ADM1293_1294.pdf
30 Author: Guenter Roeck <linux@roeck-us.net>
36 This driver supports hardware monitoring for Analog Devices ADM1075, ADM1272,
37 ADM1275, ADM1276, ADM1278, ADM1293, and ADM1294 Hot-Swap Controller and
38 Digital Power Monitors.
40 ADM1075, ADM1272, ADM1275, ADM1276, ADM1278, ADM1293, and ADM1294 are hot-swap
41 controllers that allow a circuit board to be removed from or inserted into
42 a live backplane. They also feature current and voltage readback via an
43 integrated 12 bit analog-to-digital converter (ADC), accessed using a
46 The driver is a client driver to the core PMBus driver. Please see
47 Documentation/hwmon/pmbus for details on PMBus client drivers.
53 This driver does not auto-detect devices. You will have to instantiate the
54 devices explicitly. Please see Documentation/i2c/instantiating-devices for
57 The ADM1075, unlike many other PMBus devices, does not support internal voltage
58 or current scaling. Reported voltages, currents, and power are raw measurements,
59 and will typically have to be scaled.
61 The shunt value in micro-ohms can be set via device tree at compile-time. Please
62 refer to the Documentation/devicetree/bindings/hwmon/adm1275.txt for bindings
63 if the device tree is used.
68 The driver supports standard PMBus driver platform data. Please see
69 Documentation/hwmon/pmbus for details.
75 The following attributes are supported. Limits are read-write, history reset
76 attributes are write-only, all other attributes are read-only.
78 inX_label "vin1" or "vout1" depending on chip variant and
79 configuration. On ADM1075, ADM1293, and ADM1294,
80 vout1 reports the voltage on the VAUX pin.
81 inX_input Measured voltage.
82 inX_min Minimum Voltage.
83 inX_max Maximum voltage.
84 inX_min_alarm Voltage low alarm.
85 inX_max_alarm Voltage high alarm.
86 inX_highest Historical maximum voltage.
87 inX_reset_history Write any value to reset history.
90 curr1_input Measured current.
91 curr1_max Maximum current.
92 curr1_max_alarm Current high alarm.
93 curr1_lcrit Critical minimum current. Depending on the chip
94 configuration, either curr1_lcrit or curr1_crit is
95 supported, but not both.
96 curr1_lcrit_alarm Critical current low alarm.
97 curr1_crit Critical maximum current. Depending on the chip
98 configuration, either curr1_lcrit or curr1_crit is
99 supported, but not both.
100 curr1_crit_alarm Critical current high alarm.
101 curr1_highest Historical maximum current.
102 curr1_reset_history Write any value to reset history.
105 power1_input Input power.
106 power1_input_lowest Lowest observed input power. ADM1293 and ADM1294 only.
107 power1_input_highest Highest observed input power.
108 power1_reset_history Write any value to reset history.
110 Power attributes are supported on ADM1075, ADM1272,
111 ADM1276, ADM1293, and ADM1294.
113 temp1_input Chip temperature.
114 temp1_max Maximum chip temperature.
115 temp1_max_alarm Temperature alarm.
116 temp1_crit Critical chip temperature.
117 temp1_crit_alarm Critical temperature high alarm.
118 temp1_highest Highest observed temperature.
119 temp1_reset_history Write any value to reset history.
121 Temperature attributes are supported on ADM1272 and