Kernel driver max16064

Supported chips:

Author: Guenter Roeck <linux@roeck-us.net>

Description

This driver supports hardware monitoring for Maxim MAX16064 Quad Power-Supply Controller with Active-Voltage Output Control and PMBus Interface.

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 for details.

Platform data support

The driver supports standard PMBus driver platform data.

Sysfs entries

The following attributes are supported. Limits are read-write; all other attributes are read-only.

in[1-4]_label

"vout[1-4]"

in[1-4]_input

Measured voltage. From READ_VOUT register.

in[1-4]_min

Minimum Voltage. From VOUT_UV_WARN_LIMIT register.

in[1-4]_max

Maximum voltage. From VOUT_OV_WARN_LIMIT register.

in[1-4]_lcrit

Critical minimum Voltage. VOUT_UV_FAULT_LIMIT register.

in[1-4]_crit

Critical maximum voltage. From VOUT_OV_FAULT_LIMIT register.

in[1-4]_min_alarm

Voltage low alarm. From VOLTAGE_UV_WARNING status.

in[1-4]_max_alarm

Voltage high alarm. From VOLTAGE_OV_WARNING status.

in[1-4]_lcrit_alarm

Voltage critical low alarm. From VOLTAGE_UV_FAULT status.

in[1-4]_crit_alarm

Voltage critical high alarm. From VOLTAGE_OV_FAULT status.

in[1-4]_highest

Historical maximum voltage.

in[1-4]_reset_history

Write any value to reset history.

temp1_input

Measured temperature. From READ_TEMPERATURE_1 register.

temp1_max

Maximum temperature. From OT_WARN_LIMIT register.

temp1_crit

Critical high temperature. From OT_FAULT_LIMIT register.

temp1_max_alarm

Chip temperature high alarm. Set by comparing READ_TEMPERATURE_1 with OT_WARN_LIMIT if TEMP_OT_WARNING status is set.

temp1_crit_alarm

Chip temperature critical high alarm. Set by comparing READ_TEMPERATURE_1 with OT_FAULT_LIMIT if TEMP_OT_FAULT status is set.

temp1_highest

Historical maximum temperature.

temp1_reset_history

Write any value to reset history.