Kernel driver tps40422

Supported chips:

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

Description

This driver supports TI TPS40422 Dual-Output or Two-Phase Synchronous BuckController 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 thedevices explicitly. Please see Documentation/i2c/instantiating-devices.rst fordetails.

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]_inputMeasured voltage. From READ_VOUT register.
in[1-2]_alarmvoltage alarm.
curr[1-2]_inputMeasured current. From READ_IOUT register.
curr[1-2]_label“iout[1-2]”
curr1_maxMaximum current. From IOUT_OC_WARN_LIMIT register.
curr1_critCritical maximum current. From IOUT_OC_FAULT_LIMITregister.
curr1_max_alarmCurrent high alarm. From IOUT_OC_WARN_LIMIT status.
curr1_crit_alarmCurrent critical high alarm. From IOUT_OC_FAULT status.
curr2_alarmCurrent high alarm. From IOUT_OC_WARNING status.
temp1_inputMeasured temperature. From READ_TEMPERATURE_2 registeron page 0.
temp1_maxMaximum temperature. From OT_WARN_LIMIT register.
temp1_critCritical high temperature. From OT_FAULT_LIMIT register.
temp1_max_alarmChip temperature high alarm. Set by comparingREAD_TEMPERATURE_2 on page 0 with OT_WARN_LIMIT ifTEMP_OT_WARNING status is set.
temp1_crit_alarmChip temperature critical high alarm. Set by comparingREAD_TEMPERATURE_2 on page 0 with OT_FAULT_LIMIT ifTEMP_OT_FAULT status is set.
temp2_inputMeasured temperature. From READ_TEMPERATURE_2 registeron page 1.
temp2_alarmChip temperature alarm on page 1.