74 lines
2.2 KiB
ReStructuredText
74 lines
2.2 KiB
ReStructuredText
Kernel driver tps40422
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======================
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Supported chips:
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* TI TPS40422
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Prefix: 'tps40422'
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Addresses scanned: -
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Datasheet: https://www.ti.com/lit/gpn/tps40422
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Author: Zhu Laiwen <richard.zhu@nsn.com>
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Description
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-----------
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This driver supports TI TPS40422 Dual-Output or Two-Phase Synchronous Buck
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Controller with PMBus
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The driver is a client driver to the core PMBus driver.
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Please see Documentation/hwmon/pmbus.rst for details on PMBus client drivers.
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Usage Notes
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-----------
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This driver does not auto-detect devices. You will have to instantiate the
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devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
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details.
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Platform data support
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---------------------
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The driver supports standard PMBus driver platform data.
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Sysfs entries
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-------------
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The following attributes are supported.
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======================= =======================================================
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in[1-2]_label "vout[1-2]"
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in[1-2]_input Measured voltage. From READ_VOUT register.
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in[1-2]_alarm voltage alarm.
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curr[1-2]_input Measured current. From READ_IOUT register.
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curr[1-2]_label "iout[1-2]"
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curr1_max Maximum current. From IOUT_OC_WARN_LIMIT register.
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curr1_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT
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register.
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curr1_max_alarm Current high alarm. From IOUT_OC_WARN_LIMIT status.
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curr1_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status.
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curr2_alarm Current high alarm. From IOUT_OC_WARNING status.
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temp1_input Measured temperature. From READ_TEMPERATURE_2 register
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on page 0.
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temp1_max Maximum temperature. From OT_WARN_LIMIT register.
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temp1_crit Critical high temperature. From OT_FAULT_LIMIT register.
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temp1_max_alarm Chip temperature high alarm. Set by comparing
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READ_TEMPERATURE_2 on page 0 with OT_WARN_LIMIT if
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TEMP_OT_WARNING status is set.
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temp1_crit_alarm Chip temperature critical high alarm. Set by comparing
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READ_TEMPERATURE_2 on page 0 with OT_FAULT_LIMIT if
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TEMP_OT_FAULT status is set.
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temp2_input Measured temperature. From READ_TEMPERATURE_2 register
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on page 1.
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temp2_alarm Chip temperature alarm on page 1.
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======================= =======================================================
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