Kernel driver xdpe152

Supported chips:

  • Infineon XDPE152C4

    Prefix: ‘xdpe152c4’

  • Infineon XDPE15284

    Prefix: ‘xdpe15284’

Authors:

Greg Schwendimann <greg.schwendimann@infineon.com>

Description

This driver implements support for Infineon Digital Multi-phase Controller XDPE152C4 and XDPE15284 dual loop voltage regulators. The devices are compliant with:

  • Intel VR13, VR13HC and VR14 rev 1.86 converter specification.
  • Intel SVID rev 1.93. protocol.
  • PMBus rev 1.3.1 interface.

Devices support linear format for reading input and output voltage, input and output current, input and output power and temperature.

Devices support two pages for telemetry.

The driver provides for current: input, maximum and critical thresholds and maximum and critical alarms. Low Critical thresholds and Low critical alarm are supported only for current output. The driver exports the following attributes for via the sysfs files, where indexes 1, 2 are for “iin” and 3, 4 for “iout”:

curr[1-4]_crit

curr[1-4]_crit_alarm

curr[1-4]_input

curr[1-4]_label

curr[1-4]_max

curr[1-4]_max_alarm

curr[3-4]_lcrit

curr[3-4]_lcrit_alarm

curr[3-4]_rated_max

The driver provides for voltage: input, critical and low critical thresholds and critical and low critical alarms. The driver exports the following attributes for via the sysfs files, where indexes 1, 2 are for “vin” and 3, 4 for “vout”:

in[1-4]_min

in[1-4]_crit

in[1-4_crit_alarm

in[1-4]_input

in[1-4]_label

in[1-4]_max

in[1-4]_max_alarm

in[1-4]_min

in[1-4]_min_alarm

in[3-4]_lcrit

in[3-4]_lcrit_alarm

in[3-4]_rated_max

in[3-4]_rated_min

The driver provides for power: input and alarms. The driver exports the following attributes for via the sysfs files, where indexes 1, 2 are for “pin” and 3, 4 for “pout”:

power[1-2]_alarm

power[1-4]_input

power[1-4]_label

power[1-4]_max

power[1-4]_rated_max

The driver provides for temperature: input, maximum and critical thresholds and maximum and critical alarms. The driver exports the following attributes for via the sysfs files:

temp[1-2]_crit

temp[1-2]_crit_alarm

temp[1-2]_input

temp[1-2]_max

temp[1-2]_max_alarm