1 .. SPDX-License-Identifier: GPL-2.0
7 * Linear Technology LTC2992
9 Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ltc2992.pdf
11 Author: Alexandru Tachici <alexandru.tachici@analog.com>
17 This driver supports hardware monitoring for Linear Technology LTC2992 power monitor.
19 LTC2992 is a rail-to-rail system monitor that measures current,
20 voltage, and power of two supplies.
22 Two ADCs simultaneously measure each supply's current. A third ADC monitors
23 the input voltages and four auxiliary external voltages.
29 The following attributes are supported. Limits are read-write,
30 all other attributes are read-only.
32 in_reset_history Reset all highest/lowest values.
34 inX_input Measured voltage.
35 inX_lowest Minimum measured voltage.
36 inX_highest Maximum measured voltage.
37 inX_min Minimum voltage allowed.
38 inX_max Maximum voltage allowed.
39 inX_min_alarm An undervoltage occurred. Cleared on read.
40 inX_max_alarm An overvoltage occurred. Cleared on read.
42 currX_input Measured current.
43 currX_lowest Minimum measured current.
44 currX_highest Maximum measured current.
45 currX_min Minimum current allowed.
46 currX_max Maximum current allowed.
47 currX_min_alarm An undercurrent occurred. Cleared on read.
48 currX_max_alarm An overcurrent occurred. Cleared on read.
50 powerX_input Measured power.
51 powerX_input_lowest Minimum measured voltage.
52 powerX_input_highest Maximum measured voltage.
53 powerX_min Minimum power.
54 powerX_max Maximum power.
55 powerX_min_alarm An underpower occurred. Cleared on read.
56 powerX_max_alarm An overpower occurred. Cleared on read.