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Kernel driver tps40422
======================
Supported chips:
* TI TPS40422
Prefix: 'tps40422'
Addresses scanned: -
Datasheet: http://www.ti.com/lit/gpn/tps40422
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 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 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.
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