Kernel driver tps40422

Supported chips:

Author: Zhu Laiwen <richard.zhu@nsn.com>

Description

This driver supports TI TPS40422 Dual-Output or Two-Phase Synchronous Buck Controller with PMBus

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.rst for details.

Platform data support

The driver supports standard PMBus driver platform data.

Sysfs entries

The following attributes are supported.

in[1-2]_label

“vout[1-2]”

in[1-2]_input

Measured voltage. From READ_VOUT register.

in[1-2]_alarm

voltage alarm.

curr[1-2]_input

Measured current. From READ_IOUT register.

curr[1-2]_label

“iout[1-2]”

curr1_max

Maximum current. From IOUT_OC_WARN_LIMIT register.

curr1_crit

Critical maximum current. From IOUT_OC_FAULT_LIMIT register.

curr1_max_alarm

Current high alarm. From IOUT_OC_WARN_LIMIT status.

curr1_crit_alarm

Current critical high alarm. From IOUT_OC_FAULT status.

curr2_alarm

Current high alarm. From IOUT_OC_WARNING status.

temp1_input

Measured temperature. From READ_TEMPERATURE_2 register on page 0.

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_2 on page 0 with OT_WARN_LIMIT if TEMP_OT_WARNING status is set.

temp1_crit_alarm

Chip temperature critical high alarm. Set by comparing READ_TEMPERATURE_2 on page 0 with OT_FAULT_LIMIT if TEMP_OT_FAULT status is set.

temp2_input

Measured temperature. From READ_TEMPERATURE_2 register on page 1.

temp2_alarm

Chip temperature alarm on page 1.