Kernel driver tps53679

Supported chips:

Authors:

Vadim Pasternak <vadimp@mellanox.com> Guenter Roeck <linux@roeck-us.net>

Description

Chips in this series are multi-phase step-down converters with one or two output channels and up to 8 phases per channel.

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 TPS53681 at address 0x60 on I2C bus #1:

# modprobe tps53679
# echo tps53681 0x60 > /sys/bus/i2c/devices/i2c-1/new_device

Sysfs attributes

in1_label

"vin"

in1_input

Measured input voltage.

in1_lcrit

Critical minimum input voltage

TPS53679, TPS53681, TPS53688 only.

in1_lcrit_alarm

Input voltage critical low alarm.

TPS53679, TPS53681, TPS53688 only.

in1_crit

Critical maximum input voltage.

in1_crit_alarm

Input voltage critical high alarm.

in[N]_label

"vout[1-2]"

  • TPS53647, TPS53667: N=2

  • TPS53679, TPS53588: N=2,3

in[N]_input

Measured output voltage.

in[N]_lcrit

Critical minimum input voltage.

TPS53679, TPS53681, TPS53688 only.

in[N]_lcrit_alarm

Critical minimum voltage alarm.

TPS53679, TPS53681, TPS53688 only.

in[N]_alarm

Output voltage alarm.

TPS53647, TPS53667 only.

in[N]_crit

Critical maximum output voltage.

TPS53679, TPS53681, TPS53688 only.

in[N]_crit_alarm

Output voltage critical high alarm.

TPS53679, TPS53681, TPS53688 only.

temp[N]_input

Measured temperature.

  • TPS53647, TPS53667: N=1

  • TPS53679, TPS53681, TPS53588: N=1,2

temp[N]_max

Maximum temperature.

temp[N]_crit

Critical high temperature.

temp[N]_max_alarm

Temperature high alarm.

temp[N]_crit_alarm

Temperature critical high alarm.

power1_label

"pin".

power1_input

Measured input power.

power[N]_label

"pout[1-2]".

  • TPS53647, TPS53667: N=2

  • TPS53676, TPS53679, TPS53681, TPS53588: N=2,3

power[N]_input

Measured output power.

curr1_label

"iin".

curr1_input

Measured input current.

curr1_max

Maximum input current.

curr1_max_alarm

Input current high alarm.

curr1_crit

Critical input current.

curr1_crit_alarm

Input current critical alarm.

curr[N]_label

"iout[1-2]" or "iout1.[0-5]".

The first digit is the output channel, the second digit is the phase within the channel. Per-phase telemetry supported on TPS53676 and TPS53681 only.

  • TPS53647, TPS53667: N=2

  • TPS53679, TPS53588: N=2,3

  • TPS53676: N=2-8

  • TPS53681: N=2-9

curr[N]_input

Measured output current.

curr[N]_max

Maximum output current.

curr[N]_crit

Critical high output current.

curr[N]_max_alarm

Output current high alarm.

curr[N]_crit_alarm

Output current critical high alarm.

Limit and alarm attributes are only available for non-phase telemetry (iout1, iout2).