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