0001 Kernel driver lm25066
0002 =====================
0003
0004 Supported chips:
0005
0006 * TI LM25056
0007
0008 Prefix: 'lm25056'
0009
0010 Addresses scanned: -
0011
0012 Datasheets:
0013
0014 https://www.ti.com/lit/gpn/lm25056
0015
0016 https://www.ti.com/lit/gpn/lm25056a
0017
0018 * National Semiconductor LM25066
0019
0020 Prefix: 'lm25066'
0021
0022 Addresses scanned: -
0023
0024 Datasheets:
0025
0026 http://www.national.com/pf/LM/LM25066.html
0027
0028 http://www.national.com/pf/LM/LM25066A.html
0029
0030 * National Semiconductor LM5064
0031
0032 Prefix: 'lm5064'
0033
0034 Addresses scanned: -
0035
0036 Datasheet:
0037
0038 http://www.national.com/pf/LM/LM5064.html
0039
0040 * National Semiconductor LM5066
0041
0042 Prefix: 'lm5066'
0043
0044 Addresses scanned: -
0045
0046 Datasheet:
0047
0048 http://www.national.com/pf/LM/LM5066.html
0049
0050 * Texas Instruments LM5066I
0051
0052 Prefix: 'lm5066i'
0053
0054 Addresses scanned: -
0055
0056 Datasheet:
0057
0058 https://www.ti.com/product/LM5066I
0059
0060
0061 Author: Guenter Roeck <linux@roeck-us.net>
0062
0063
0064 Description
0065 -----------
0066
0067 This driver supports hardware monitoring for National Semiconductor / TI LM25056,
0068 LM25066, LM5064, and LM5066/LM5066I Power Management, Monitoring,
0069 Control, and Protection ICs.
0070
0071 The driver is a client driver to the core PMBus driver. Please see
0072 Documentation/hwmon/pmbus.rst for details on PMBus client drivers.
0073
0074
0075 Usage Notes
0076 -----------
0077
0078 This driver does not auto-detect devices. You will have to instantiate the
0079 devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
0080 details.
0081
0082 The shunt (sense) resistor value can be configured by a device tree property;
0083 see Documentation/devicetree/bindings/hwmon/pmbus/ti,lm25066.yaml for details.
0084
0085 Platform data support
0086 ---------------------
0087
0088 The driver supports standard PMBus driver platform data.
0089
0090
0091 Sysfs entries
0092 -------------
0093
0094 The following attributes are supported. Limits are read-write; all other
0095 attributes are read-only.
0096
0097 ======================= =======================================================
0098 in1_label "vin"
0099 in1_input Measured input voltage.
0100 in1_average Average measured input voltage.
0101 in1_min Minimum input voltage.
0102 in1_max Maximum input voltage.
0103 in1_min_alarm Input voltage low alarm.
0104 in1_max_alarm Input voltage high alarm.
0105
0106 in2_label "vmon"
0107 in2_input Measured voltage on VAUX pin
0108 in2_min Minimum VAUX voltage (LM25056 only).
0109 in2_max Maximum VAUX voltage (LM25056 only).
0110 in2_min_alarm VAUX voltage low alarm (LM25056 only).
0111 in2_max_alarm VAUX voltage high alarm (LM25056 only).
0112
0113 in3_label "vout1"
0114 Not supported on LM25056.
0115 in3_input Measured output voltage.
0116 in3_average Average measured output voltage.
0117 in3_min Minimum output voltage.
0118 in3_min_alarm Output voltage low alarm.
0119
0120 curr1_label "iin"
0121 curr1_input Measured input current.
0122 curr1_average Average measured input current.
0123 curr1_max Maximum input current.
0124 curr1_max_alarm Input current high alarm.
0125
0126 power1_label "pin"
0127 power1_input Measured input power.
0128 power1_average Average measured input power.
0129 power1_max Maximum input power limit.
0130 power1_alarm Input power alarm
0131 power1_input_highest Historical maximum power.
0132 power1_reset_history Write any value to reset maximum power history.
0133
0134 temp1_input Measured temperature.
0135 temp1_max Maximum temperature.
0136 temp1_crit Critical high temperature.
0137 temp1_max_alarm Chip temperature high alarm.
0138 temp1_crit_alarm Chip temperature critical high alarm.
0139 ======================= =======================================================
