linux/Documentation/hwmon/pxe1610.rst

Kernel driver pxe1610
=====================

Supported chips:

  * Infineon PXE1610

    Prefix: 'pxe1610'

    Addresses scanned: -

    Datasheet: Datasheet is not publicly available.

  * Infineon PXE1110

    Prefix: 'pxe1110'

    Addresses scanned: -

    Datasheet: Datasheet is not publicly available.

  * Infineon PXM1310

    Prefix: 'pxm1310'

    Addresses scanned: -

    Datasheet: Datasheet is not publicly available.

Author: Vijay Khemka <vijaykhemka@fb.com>


Description
-----------

PXE1610/PXE1110 are Multi-rail/Multiphase Digital Controllers
and compliant to

	- Intel VR13 DC-DC converter specifications.
	- Intel SVID protocol.

Used for Vcore power regulation for Intel VR13 based microprocessors

	- Servers, Workstations, and High-end desktops

PXM1310 is a Multi-rail Controller and it is compliant to

	- Intel VR13 DC-DC converter specifications.
	- Intel SVID protocol.

Used for DDR3/DDR4 Memory power regulation for Intel VR13 and
IMVP8 based systems


Usage Notes
-----------

This driver does not probe for PMBus devices. You will have
to instantiate devices explicitly.

Example: the following commands will load the driver for an PXE1610
at address 0x70 on I2C bus #4::

    # modprobe pxe1610
    # echo pxe1610 0x70 > /sys/bus/i2c/devices/i2c-4/new_device

It can also be instantiated by declaring in device tree


Sysfs attributes
----------------

======================  ====================================
curr1_label		"iin"
curr1_input		Measured input current
curr1_alarm		Current high alarm

curr[2-4]_label		"iout[1-3]"
curr[2-4]_input		Measured output current
curr[2-4]_crit		Critical maximum current
curr[2-4]_crit_alarm	Current critical high alarm

in1_label		"vin"
in1_input		Measured input voltage
in1_crit		Critical maximum input voltage
in1_crit_alarm		Input voltage critical high alarm

in[2-4]_label		"vout[1-3]"
in[2-4]_input		Measured output voltage
in[2-4]_lcrit		Critical minimum output voltage
in[2-4]_lcrit_alarm	Output voltage critical low alarm
in[2-4]_crit		Critical maximum output voltage
in[2-4]_crit_alarm	Output voltage critical high alarm

power1_label		"pin"
power1_input		Measured input power
power1_alarm		Input power high alarm

power[2-4]_label	"pout[1-3]"
power[2-4]_input	Measured output power

temp[1-3]_input		Measured temperature
temp[1-3]_crit		Critical high temperature
temp[1-3]_crit_alarm	Chip temperature critical high alarm
temp[1-3]_max		Maximum temperature
temp[1-3]_max_alarm	Chip temperature high alarm
======================  ====================================