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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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