Kernel driver max20830

Supported chips:

• Analog Devices MAX20830

  Prefix: ‘max20830’

  Addresses scanned: -

  Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/max20830.pdf

• Analog Devices MAX20830C

  Prefix: ‘max20830c’

  Addresses scanned: -

  Datasheet:

• Analog Devices MAX20840C

  Prefix: ‘max20840c’

  Addresses scanned: -

  Datasheet:

Author:

• Alexis Czezar Torreno <alexisczezar.torreno@analog.com>

Description

This driver supports hardware monitoring for Analog Devices MAX20830, MAX20830C and MAX20840C. These are Step-Down Switching Regulator with PMBus Interface.

MAX20830, and MAX20830C are 2.7V to 16V, 30A fully integrated step-down DC-DC switching regulators. MAX20840C is similar but can reach 40A. Through the PMBus interface, these devices can monitor input/output voltages, output current and temperature.

The driver is a client driver to the core PMBus driver. Please see Kernel driver pmbus for details on PMBus client drivers.

Sysfs entries

in1_label	“vin”
in1_input	Measured input voltage
in1_alarm	Input voltage alarm
in2_label	“vout1”
in2_input	Measured output voltage
in2_alarm	Output voltage alarm
curr1_label	“iout1”
curr1_input	Measured output current
curr1_alarm	Output current alarm
temp1_input	Measured temperature
temp1_alarm	Chip temperature alarm