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.. SPDX-License-Identifier: GPL-2.0
Kernel driver adp1050
=====================
Supported chips:
* Analog Devices ADP1050
Prefix: 'adp1050'
Addresses scanned: I2C 0x70 - 0x77
Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADP1050.pdf
* Analog Devices ADP1051
Prefix: 'adp1051'
Addresses scanned: I2C 0x70 - 0x77
Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADP1051.pdf
* Analog Devices ADP1055
Prefix: 'adp1055'
Addresses scanned: I2C 0x4B - 0x77
Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADP1055.pdf
* Analog Devices LTP8800-1A/-2/-4A
Prefix: 'ltp8800'
Addresses scanned: -
Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/LTP8800-1A.pdf
https://www.analog.com/media/en/technical-documentation/data-sheets/LTP8800-2.pdf
https://www.analog.com/media/en/technical-documentation/data-sheets/LTP8800-4A.pdf
Authors:
- Radu Sabau <radu.sabau@analog.com>
Description
-----------
This driver supports hardware monitoring for Analog Devices ADP1050, ADP1051,
and ADP1055 Digital Controller for Isolated Power Supply with PMBus interface,
and the LTP8800 step-down μModule regulators.
The ADP1050, ADP1051, and ADP1055 are advanced digital controllers with PMBus™
interface targeting high density, high efficiency dc-to-dc power
conversion used to monitor system temperatures, voltages and currents. The
LTP8800 is a family of step-down μModule regulators that provides microprocessor
core voltage from 54V power distribution architecture. Through the PMBus
interface, the device can monitor input/output voltages, input current and
temperature.
Usage Notes
-----------
This driver does not auto-detect devices. You will have to instantiate
the devices explicitly.
Please see Documentation/i2c/instantiating-devices.rst for details.
Platform data support
---------------------
The driver supports standard PMBus driver platform data.
Sysfs Attributes
----------------
================= ========================================
in1_label "vin"
in1_input Measured input voltage
in1_alarm Input voltage alarm
in1_crit Critical maximum input voltage
in1_crit_alarm Input voltage high alarm
in1_lcrit Critical minimum input voltage
in1_lcrit_alarm Input voltage critical low alarm
in2_label "vout1"
in2_input Measured output voltage
in2_crit Critical maximum output voltage
in2_crit_alarm Output voltage high alarm
in2_lcrit Critical minimum output voltage
in2_lcrit_alarm Output voltage critical low alarm
in2_max Critical maximum output voltage
in2_max_alarm Output voltage critical max alarm
in2_min Critical minimum output voltage
in2_min_alarm Output voltage critical min alarm
curr1_label "iin"
curr1_input Measured input current.
curr1_alarm Input current alarm
curr1_crit Critical maximum input current
curr1_crit_alarm Input current high alarm
curr2_label "iout1"
curr2_input Measured output current
curr2_alarm Output current alarm
curr2_crit Critical maximum output current
curr2_crit_alarm Output current high alarm
curr2_lcrit Critical minimum output current
curr2_lcrit_alarm Output current critical low alarm
curr2_max Critical maximum output current
curr2_max_alarm Output current critical max alarm
power1_label "pout1"
power1_input Measured output power
power1_crit Critical maximum output power
power1_crit_alarm Output power high alarm
temp1_input Measured temperature
temp1_crit Critical high temperature
temp1_crit_alarm Chip temperature critical high alarm
temp1_max Critical maximum temperature
temp1_max_alarm Temperature critical max alarm
temp2_input Measured temperature
temp2_crit Critical high temperature
temp2_crit_alarm Chip temperature critical high alarm
temp2_max Critical maximum temperature
temp2_max_alarm Temperature critical max alarm
================= ========================================
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