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 ADM1273
28 Datasheet: Not yet publicly available
30 * Analog Devices ADM1275
36 Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1275.pdf
38 * Analog Devices ADM1276
44 Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1276.pdf
46 * Analog Devices ADM1278
52 Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1278.pdf
54 * Analog Devices ADM1281
60 Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/adm1281.pdf
62 * Analog Devices ADM1293/ADM1294
64 Prefix: 'adm1293', 'adm1294'
68 Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADM1293_1294.pdf
70 Author: Guenter Roeck <linux@roeck-us.net>
76 This driver supports hardware monitoring for Analog Devices ADM1075, ADM1272,
77 ADM1273, ADM1275, ADM1276, ADM1278, ADM1281, ADM1293, and ADM1294 Hot-Swap
78 Controller and Digital Power Monitors.
80 ADM1075, ADM1272, ADM1273, ADM1275, ADM1276, ADM1278, ADM1281, ADM1293, and
81 ADM1294 are hot-swap controllers that allow a circuit board to be removed from
82 or inserted into a live backplane. They also feature current and voltage
83 readback via an integrated 12 bit analog-to-digital converter (ADC), accessed
84 using a PMBus interface.
86 The driver is a client driver to the core PMBus driver. Please see
87 Documentation/hwmon/pmbus.rst for details on PMBus client drivers.
93 This driver does not auto-detect devices. You will have to instantiate the
94 devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
97 The ADM1075, unlike many other PMBus devices, does not support internal voltage
98 or current scaling. Reported voltages, currents, and power are raw measurements,
99 and will typically have to be scaled.
101 The shunt value in micro-ohms can be set via device tree at compile-time. Please
102 refer to the Documentation/devicetree/bindings/hwmon/adi,adm1275.yaml for bindings
103 if the device tree is used.
105 Platform data support
106 ---------------------
108 The driver supports standard PMBus driver platform data. Please see
109 Documentation/hwmon/pmbus.rst for details.
115 The following attributes are supported. Limits are read-write, history reset
116 attributes are write-only, all other attributes are read-only.
118 ======================= =======================================================
119 inX_label "vin1" or "vout1" depending on chip variant and
120 configuration. On ADM1075, ADM1293, and ADM1294,
121 vout1 reports the voltage on the VAUX pin.
122 inX_input Measured voltage.
123 inX_min Minimum Voltage.
124 inX_max Maximum voltage.
125 inX_min_alarm Voltage low alarm.
126 inX_max_alarm Voltage high alarm.
127 inX_highest Historical maximum voltage.
128 inX_reset_history Write any value to reset history.
131 curr1_input Measured current.
132 curr1_max Maximum current.
133 curr1_max_alarm Current high alarm.
134 curr1_lcrit Critical minimum current. Depending on the chip
135 configuration, either curr1_lcrit or curr1_crit is
136 supported, but not both.
137 curr1_lcrit_alarm Critical current low alarm.
138 curr1_crit Critical maximum current. Depending on the chip
139 configuration, either curr1_lcrit or curr1_crit is
140 supported, but not both.
141 curr1_crit_alarm Critical current high alarm.
142 curr1_highest Historical maximum current.
143 curr1_reset_history Write any value to reset history.
146 power1_input Input power.
147 power1_input_lowest Lowest observed input power. ADM1293 and ADM1294 only.
148 power1_input_highest Highest observed input power.
149 power1_reset_history Write any value to reset history.
151 Power attributes are supported on ADM1075, ADM1272,
152 ADM1273, ADM1276, ADM1293, and ADM1294.
154 temp1_input Chip temperature.
155 temp1_max Maximum chip temperature.
156 temp1_max_alarm Temperature alarm.
157 temp1_crit Critical chip temperature.
158 temp1_crit_alarm Critical temperature high alarm.
159 temp1_highest Highest observed temperature.
160 temp1_reset_history Write any value to reset history.
162 Temperature attributes are supported on ADM1272,
163 ADM1273, ADM1278, and ADM1281.
164 ======================= =======================================================