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- Kernel driver lm25066
- =====================
- Supported chips:
- * TI LM25056
- Prefix: 'lm25056'
- Addresses scanned: -
- Datasheets:
- https://www.ti.com/lit/gpn/lm25056
- https://www.ti.com/lit/gpn/lm25056a
- * National Semiconductor LM25066
- Prefix: 'lm25066'
- Addresses scanned: -
- Datasheets:
- http://www.national.com/pf/LM/LM25066.html
- http://www.national.com/pf/LM/LM25066A.html
- * National Semiconductor LM5064
- Prefix: 'lm5064'
- Addresses scanned: -
- Datasheet:
- http://www.national.com/pf/LM/LM5064.html
- * National Semiconductor LM5066
- Prefix: 'lm5066'
- Addresses scanned: -
- Datasheet:
- http://www.national.com/pf/LM/LM5066.html
- * Texas Instruments LM5066I
- Prefix: 'lm5066i'
- Addresses scanned: -
- Datasheet:
- https://www.ti.com/product/LM5066I
- Author: Guenter Roeck <[email protected]>
- Description
- -----------
- This driver supports hardware monitoring for National Semiconductor / TI LM25056,
- LM25066, LM5064, and LM5066/LM5066I Power Management, Monitoring,
- Control, and Protection ICs.
- 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 the
- devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
- details.
- The shunt (sense) resistor value can be configured by a device tree property;
- see Documentation/devicetree/bindings/hwmon/pmbus/ti,lm25066.yaml for details.
- Platform data support
- ---------------------
- The driver supports standard PMBus driver platform data.
- Sysfs entries
- -------------
- The following attributes are supported. Limits are read-write; all other
- attributes are read-only.
- ======================= =======================================================
- in1_label "vin"
- in1_input Measured input voltage.
- in1_average Average measured input voltage.
- in1_min Minimum input voltage.
- in1_max Maximum input voltage.
- in1_min_alarm Input voltage low alarm.
- in1_max_alarm Input voltage high alarm.
- in2_label "vmon"
- in2_input Measured voltage on VAUX pin
- in2_min Minimum VAUX voltage (LM25056 only).
- in2_max Maximum VAUX voltage (LM25056 only).
- in2_min_alarm VAUX voltage low alarm (LM25056 only).
- in2_max_alarm VAUX voltage high alarm (LM25056 only).
- in3_label "vout1"
- Not supported on LM25056.
- in3_input Measured output voltage.
- in3_average Average measured output voltage.
- in3_min Minimum output voltage.
- in3_min_alarm Output voltage low alarm.
- curr1_label "iin"
- curr1_input Measured input current.
- curr1_average Average measured input current.
- curr1_max Maximum input current.
- curr1_max_alarm Input current high alarm.
- power1_label "pin"
- power1_input Measured input power.
- power1_average Average measured input power.
- power1_max Maximum input power limit.
- power1_alarm Input power alarm
- power1_input_highest Historical maximum power.
- power1_reset_history Write any value to reset maximum power history.
- temp1_input Measured temperature.
- temp1_max Maximum temperature.
- temp1_crit Critical high temperature.
- temp1_max_alarm Chip temperature high alarm.
- temp1_crit_alarm Chip temperature critical high alarm.
- ======================= =======================================================
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