140 lines
3.3 KiB
ReStructuredText
140 lines
3.3 KiB
ReStructuredText
Kernel driver lm25066
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=====================
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Supported chips:
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* TI LM25056
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Prefix: 'lm25056'
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Addresses scanned: -
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Datasheets:
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https://www.ti.com/lit/gpn/lm25056
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https://www.ti.com/lit/gpn/lm25056a
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* National Semiconductor LM25066
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Prefix: 'lm25066'
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Addresses scanned: -
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Datasheets:
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http://www.national.com/pf/LM/LM25066.html
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http://www.national.com/pf/LM/LM25066A.html
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* National Semiconductor LM5064
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Prefix: 'lm5064'
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Addresses scanned: -
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Datasheet:
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http://www.national.com/pf/LM/LM5064.html
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* National Semiconductor LM5066
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Prefix: 'lm5066'
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Addresses scanned: -
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Datasheet:
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http://www.national.com/pf/LM/LM5066.html
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* Texas Instruments LM5066I
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Prefix: 'lm5066i'
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Addresses scanned: -
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Datasheet:
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https://www.ti.com/product/LM5066I
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Author: Guenter Roeck <linux@roeck-us.net>
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Description
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-----------
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This driver supports hardware monitoring for National Semiconductor / TI LM25056,
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LM25066, LM5064, and LM5066/LM5066I Power Management, Monitoring,
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Control, and Protection ICs.
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The driver is a client driver to the core PMBus driver. Please see
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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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The shunt (sense) resistor value can be configured by a device tree property;
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see Documentation/devicetree/bindings/hwmon/pmbus/ti,lm25066.yaml for 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. Limits are read-write; all other
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attributes are read-only.
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======================= =======================================================
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in1_label "vin"
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in1_input Measured input voltage.
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in1_average Average measured input voltage.
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in1_min Minimum input voltage.
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in1_max Maximum input voltage.
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in1_min_alarm Input voltage low alarm.
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in1_max_alarm Input voltage high alarm.
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in2_label "vmon"
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in2_input Measured voltage on VAUX pin
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in2_min Minimum VAUX voltage (LM25056 only).
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in2_max Maximum VAUX voltage (LM25056 only).
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in2_min_alarm VAUX voltage low alarm (LM25056 only).
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in2_max_alarm VAUX voltage high alarm (LM25056 only).
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in3_label "vout1"
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Not supported on LM25056.
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in3_input Measured output voltage.
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in3_average Average measured output voltage.
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in3_min Minimum output voltage.
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in3_min_alarm Output voltage low alarm.
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curr1_label "iin"
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curr1_input Measured input current.
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curr1_average Average measured input current.
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curr1_max Maximum input current.
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curr1_max_alarm Input current high alarm.
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power1_label "pin"
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power1_input Measured input power.
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power1_average Average measured input power.
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power1_max Maximum input power limit.
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power1_alarm Input power alarm
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power1_input_highest Historical maximum power.
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power1_reset_history Write any value to reset maximum power history.
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temp1_input Measured temperature.
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temp1_max Maximum temperature.
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temp1_crit Critical high temperature.
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temp1_max_alarm Chip temperature high alarm.
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temp1_crit_alarm Chip temperature critical high alarm.
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======================= =======================================================
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