| .. 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 |
| ======================= ======================================================= |
