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diff --git a/Documentation/hwmon/lm25066.rst b/Documentation/hwmon/lm25066.rst new file mode 100644 index 0000000000..a2098eb240 --- /dev/null +++ b/Documentation/hwmon/lm25066.rst @@ -0,0 +1,139 @@ +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 <linux@roeck-us.net> + + +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. +======================= ======================================================= |