.. SPDX-License-Identifier: GPL-2.0
Kernel driver max15301
======================
Supported chips:
* Maxim MAX15301
Prefix: 'max15301', 'bmr461'
Addresses scanned: -
Datasheet:
https://datasheets.maximintegrated.com/en/ds/MAX15301.pdf
* Maxim MAX15303
Prefix: 'max15303'
Addresses scanned: -
Datasheet:
https://www.analog.com/media/en/technical-documentation/data-sheets/max15303.pdf
Author: Erik Rosen <erik.rosen@metormote.com>
Description
-----------
This driver supports hardware monitoring for Maxim MAX15301 controller chip and
compatible modules.
The driver is a client driver to the core PMBus driver. Please see
Documentation/hwmon/pmbus.rst and Documentation.hwmon/pmbus-core 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.
Module parameters
-----------------
delay
-----
The controller requires a minimum interval between I2C bus accesses.
The default interval is set to 100 us. For manual override, the driver
provides a writeable module parameter, 'delay', which can be used to
set the interval to a value between 0 and 65,535 microseconds.
Sysfs entries
-------------
The following attributes are supported. Limits are read-write; all other
attributes are read-only.
======================= ========================================================
in1_label "vin"
in1_input Measured input voltage.
in1_lcrit Critical minimum input voltage.
in1_crit Critical maximum input voltage.
in1_lcrit_alarm Input voltage critical low alarm.
in1_crit_alarm Input voltage critical high alarm.
in2_label "vout1"
in2_input Measured output voltage.
in2_lcrit Critical minimum output Voltage.
in2_crit Critical maximum output voltage.
in2_lcrit_alarm Critical output voltage critical low alarm.
in2_crit_alarm Critical output voltage critical high alarm.
curr1_label "iout1"
curr1_input Measured output current.
curr1_crit Critical maximum output current.
curr1_crit_alarm Output current critical high alarm.
temp1_input Measured maximum temperature of all phases.
temp1_max Maximum temperature limit.
temp1_max_alarm High temperature alarm.
temp1_crit Critical maximum temperature limit.
temp1_crit_alarm Critical maximum temperature alarm.
======================= ========================================================
