.. SPDX-License-Identifier: GPL-2.0
Kernel driver lt3074
====================
Supported chips:
* Analog Devices LT3074
Prefix: 'lt3074'
Addresses scanned: -
Datasheet:
https://www.analog.com/en/products/lt3074.html
Authors: Cedric Encarnacion <cedricjustine.encarnacion@analog.com>
Description
-----------
This driver supports hardware monitoring for Analog Devices LT3074 Linear
Regulator with PMBus interface.
The LT3074 is a low voltage, ultra-low noise and ultra-fast transient
response linear regulator with PMBus serial interface. PMBus telemetry
feature provides information regarding the output voltage and current,
input voltage, bias voltage and die temperature.
The driver is a client driver to the core PMBus driver. Please see
Documentation/hwmon/pmbus.rst for details on PMBus client drivers.
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 entries
-------------
======================= =======================================================
in1_label "vin"
in1_input Measured input voltage
in1_max Input overvoltage warning limit
in1_max_alarm Input overvoltage warning status
in1_min Input undervoltage warning limit
in1_min_alarm Input undervoltage warning status
in2_label "vmon"
in2_input Measured bias voltage
in2_max Bias overvoltage warning limit
in2_min Bias undervoltage warning limit
in3_label "vout1"
in3_input Measured output voltage
in3_max Output overvoltage warning limit
in3_max_alarm Output overvoltage warning status
in3_min Output undervoltage warning limit
in3_min_alarm Output undervoltage warning status
curr1_label "iout1"
curr1_input Measured output current.
curr1_crit Output overcurrent fault limit
curr1_crit_alarm Output overcurrent fault status
temp1_input Measured temperature
temp1_max Maximum temperature limit
temp1_max_alarm Overtemperature warning status
======================= =======================================================
