6 * Analog Devices ADM1075
12 Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1075.pdf
14 * Analog Devices ADM1272
20 Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1272.pdf
22 * Analog Devices ADM1275
28 Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1275.pdf
30 * Analog Devices ADM1276
36 Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1276.pdf
38 * Analog Devices ADM1278
44 Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1278.pdf
46 * Analog Devices ADM1293/ADM1294
48 Prefix: 'adm1293', 'adm1294'
52 Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADM1293_1294.pdf
54 Author: Guenter Roeck <linux@roeck-us.net>
60 This driver supports hardware monitoring for Analog Devices ADM1075, ADM1272,
61 ADM1275, ADM1276, ADM1278, ADM1293, and ADM1294 Hot-Swap Controller and
62 Digital Power Monitors.
64 ADM1075, ADM1272, ADM1275, ADM1276, ADM1278, ADM1293, and ADM1294 are hot-swap
65 controllers that allow a circuit board to be removed from or inserted into
66 a live backplane. They also feature current and voltage readback via an
67 integrated 12 bit analog-to-digital converter (ADC), accessed using a
70 The driver is a client driver to the core PMBus driver. Please see
71 Documentation/hwmon/pmbus.rst for details on PMBus client drivers.
77 This driver does not auto-detect devices. You will have to instantiate the
78 devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
81 The ADM1075, unlike many other PMBus devices, does not support internal voltage
82 or current scaling. Reported voltages, currents, and power are raw measurements,
83 and will typically have to be scaled.
85 The shunt value in micro-ohms can be set via device tree at compile-time. Please
86 refer to the Documentation/devicetree/bindings/hwmon/adm1275.txt for bindings
87 if the device tree is used.
92 The driver supports standard PMBus driver platform data. Please see
93 Documentation/hwmon/pmbus.rst for details.
99 The following attributes are supported. Limits are read-write, history reset
100 attributes are write-only, all other attributes are read-only.
102 ======================= =======================================================
103 inX_label "vin1" or "vout1" depending on chip variant and
104 configuration. On ADM1075, ADM1293, and ADM1294,
105 vout1 reports the voltage on the VAUX pin.
106 inX_input Measured voltage.
107 inX_min Minimum Voltage.
108 inX_max Maximum voltage.
109 inX_min_alarm Voltage low alarm.
110 inX_max_alarm Voltage high alarm.
111 inX_highest Historical maximum voltage.
112 inX_reset_history Write any value to reset history.
115 curr1_input Measured current.
116 curr1_max Maximum current.
117 curr1_max_alarm Current high alarm.
118 curr1_lcrit Critical minimum current. Depending on the chip
119 configuration, either curr1_lcrit or curr1_crit is
120 supported, but not both.
121 curr1_lcrit_alarm Critical current low alarm.
122 curr1_crit Critical maximum current. Depending on the chip
123 configuration, either curr1_lcrit or curr1_crit is
124 supported, but not both.
125 curr1_crit_alarm Critical current high alarm.
126 curr1_highest Historical maximum current.
127 curr1_reset_history Write any value to reset history.
130 power1_input Input power.
131 power1_input_lowest Lowest observed input power. ADM1293 and ADM1294 only.
132 power1_input_highest Highest observed input power.
133 power1_reset_history Write any value to reset history.
135 Power attributes are supported on ADM1075, ADM1272,
136 ADM1276, ADM1293, and ADM1294.
138 temp1_input Chip temperature.
139 temp1_max Maximum chip temperature.
140 temp1_max_alarm Temperature alarm.
141 temp1_crit Critical chip temperature.
142 temp1_crit_alarm Critical temperature high alarm.
143 temp1_highest Highest observed temperature.
144 temp1_reset_history Write any value to reset history.
146 Temperature attributes are supported on ADM1272 and
148 ======================= =======================================================