=====================
Supported chips:
+
* Analog Devices ADM1075
+
Prefix: 'adm1075'
+
Addresses scanned: -
+
Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1075.pdf
+
* Analog Devices ADM1272
+
Prefix: 'adm1272'
+
Addresses scanned: -
+
Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1272.pdf
+
* Analog Devices ADM1275
+
Prefix: 'adm1275'
+
Addresses scanned: -
+
Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1275.pdf
+
* Analog Devices ADM1276
+
Prefix: 'adm1276'
+
Addresses scanned: -
+
Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1276.pdf
+
* Analog Devices ADM1278
+
Prefix: 'adm1278'
+
Addresses scanned: -
+
Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1278.pdf
+
* Analog Devices ADM1293/ADM1294
+
Prefix: 'adm1293', 'adm1294'
+
Addresses scanned: -
+
Datasheet: http://www.analog.com/media/en/technical-documentation/data-sheets/ADM1293_1294.pdf
Author: Guenter Roeck <linux@roeck-us.net>
The following attributes are supported. Limits are read-write, history reset
attributes are write-only, all other attributes are read-only.
+======================= =======================================================
inX_label "vin1" or "vout1" depending on chip variant and
configuration. On ADM1075, ADM1293, and ADM1294,
vout1 reports the voltage on the VAUX pin.
Temperature attributes are supported on ADM1272 and
ADM1278.
+======================= =======================================================
=======================
Supported chips:
+
* IBM Common Form Factor power supply
Author: Eddie James <eajames@us.ibm.com>
The following attributes are supported:
+======================= ======================================================
curr1_alarm Output current over-current alarm.
curr1_input Measured output current in mA.
curr1_label "iout1"
temp2_input Measured secondary rectifier temp in millidegrees C.
temp3_alarm ORing FET temperature over-temperature alarm.
temp3_input Measured ORing FET temperature in millidegrees C.
+======================= ======================================================
Supported chips:
* Infineon IR35221
+
Prefix: 'ir35221'
+
Addresses scanned: -
+
Datasheet: Datasheet is not publicly available.
Author: Samuel Mendoza-Jonas <sam@mendozajonas.com>
devices explicitly.
Example: the following commands will load the driver for an IR35221
-at address 0x70 on I2C bus #4:
+at address 0x70 on I2C bus #4::
-# modprobe ir35221
-# echo ir35221 0x70 > /sys/bus/i2c/devices/i2c-4/new_device
+ # modprobe ir35221
+ # echo ir35221 0x70 > /sys/bus/i2c/devices/i2c-4/new_device
Sysfs attributes
----------------
+======================= =======================================================
curr1_label "iin"
curr1_input Measured input current
curr1_max Maximum current
temp[1-2]_lowest Lowest temperature
temp[1-2]_max Maximum temperature
temp[1-2]_max_alarm Chip temperature high alarm
+======================= =======================================================
=====================
Supported chips:
+
* TI LM25056
+
Prefix: 'lm25056'
+
Addresses scanned: -
+
Datasheets:
+
http://www.ti.com/lit/gpn/lm25056
+
http://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:
+
http://www.ti.com/product/LM5066I
+
Author: Guenter Roeck <linux@roeck-us.net>
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.
temp1_crit Critical high temperature.
temp1_max_alarm Chip temperature high alarm.
temp1_crit_alarm Chip temperature critical high alarm.
+======================= =======================================================
=====================
Supported chips:
+
* Linear Technology LTC2974
+
Prefix: 'ltc2974'
+
Addresses scanned: -
+
Datasheet: http://www.linear.com/product/ltc2974
+
* Linear Technology LTC2975
+
Prefix: 'ltc2975'
+
Addresses scanned: -
+
Datasheet: http://www.linear.com/product/ltc2975
+
* Linear Technology LTC2977
+
Prefix: 'ltc2977'
+
Addresses scanned: -
+
Datasheet: http://www.linear.com/product/ltc2977
+
* Linear Technology LTC2978, LTC2978A
+
Prefix: 'ltc2978'
+
Addresses scanned: -
+
Datasheet: http://www.linear.com/product/ltc2978
- http://www.linear.com/product/ltc2978a
+
+ http://www.linear.com/product/ltc2978a
+
* Linear Technology LTC2980
+
Prefix: 'ltc2980'
+
Addresses scanned: -
+
Datasheet: http://www.linear.com/product/ltc2980
+
* Linear Technology LTC3880
+
Prefix: 'ltc3880'
+
Addresses scanned: -
+
Datasheet: http://www.linear.com/product/ltc3880
+
* Linear Technology LTC3882
+
Prefix: 'ltc3882'
+
Addresses scanned: -
+
Datasheet: http://www.linear.com/product/ltc3882
+
* Linear Technology LTC3883
+
Prefix: 'ltc3883'
+
Addresses scanned: -
+
Datasheet: http://www.linear.com/product/ltc3883
+
* Linear Technology LTC3886
+
Prefix: 'ltc3886'
+
Addresses scanned: -
+
Datasheet: http://www.linear.com/product/ltc3886
+
* Linear Technology LTC3887
+
Prefix: 'ltc3887'
+
Addresses scanned: -
+
Datasheet: http://www.linear.com/product/ltc3887
+
* Linear Technology LTM2987
+
Prefix: 'ltm2987'
+
Addresses scanned: -
+
Datasheet: http://www.linear.com/product/ltm2987
+
* Linear Technology LTM4675
+
Prefix: 'ltm4675'
+
Addresses scanned: -
+
Datasheet: http://www.linear.com/product/ltm4675
+
* Linear Technology LTM4676
+
Prefix: 'ltm4676'
+
Addresses scanned: -
+
Datasheet: http://www.linear.com/product/ltm4676
+
* Analog Devices LTM4686
+
Prefix: 'ltm4686'
+
Addresses scanned: -
+
Datasheet: http://www.analog.com/ltm4686
+
Author: Guenter Roeck <linux@roeck-us.net>
Description
-----------
-LTC2974 and LTC2975 are quad digital power supply managers.
-LTC2978 is an octal power supply monitor.
-LTC2977 is a pin compatible replacement for LTC2978.
-LTC2980 is a 16-channel Power System Manager, consisting of two LTC2977
-in a single die. The chip is instantiated and reported as two separate chips
-on two different I2C bus addresses.
-LTC3880, LTC3882, LTC3886, and LTC3887 are dual output poly-phase step-down
-DC/DC controllers.
-LTC3883 is a single phase step-down DC/DC controller.
-LTM2987 is a 16-channel Power System Manager with two LTC2977 plus
-additional components on a single die. The chip is instantiated and reported
-as two separate chips on two different I2C bus addresses.
-LTM4675 is a dual 9A or single 18A μModule regulator
-LTM4676 is a dual 13A or single 26A uModule regulator.
-LTM4686 is a dual 10A or single 20A uModule regulator.
+- LTC2974 and LTC2975 are quad digital power supply managers.
+- LTC2978 is an octal power supply monitor.
+- LTC2977 is a pin compatible replacement for LTC2978.
+- LTC2980 is a 16-channel Power System Manager, consisting of two LTC2977
+- in a single die. The chip is instantiated and reported as two separate chips
+- on two different I2C bus addresses.
+- LTC3880, LTC3882, LTC3886, and LTC3887 are dual output poly-phase step-down
+- DC/DC controllers.
+- LTC3883 is a single phase step-down DC/DC controller.
+- LTM2987 is a 16-channel Power System Manager with two LTC2977 plus
+- additional components on a single die. The chip is instantiated and reported
+- as two separate chips on two different I2C bus addresses.
+- LTM4675 is a dual 9A or single 18A μModule regulator
+- LTM4676 is a dual 13A or single 26A uModule regulator.
+- LTM4686 is a dual 10A or single 20A uModule regulator.
Usage Notes
devices explicitly.
Example: the following commands will load the driver for an LTC2978 at address
-0x60 on I2C bus #1:
+0x60 on I2C bus #1::
-# modprobe ltc2978
-# echo ltc2978 0x60 > /sys/bus/i2c/devices/i2c-1/new_device
+ # modprobe ltc2978
+ # echo ltc2978 0x60 > /sys/bus/i2c/devices/i2c-1/new_device
Sysfs attributes
----------------
+======================= ========================================================
in1_label "vin"
+
in1_input Measured input voltage.
+
in1_min Minimum input voltage.
+
in1_max Maximum input voltage.
+
LTC2974, LTC2975, LTC2977, LTC2980, LTC2978, and
LTM2987 only.
+
in1_lcrit Critical minimum input voltage.
+
LTC2974, LTC2975, LTC2977, LTC2980, LTC2978, and
LTM2987 only.
+
in1_crit Critical maximum input voltage.
+
in1_min_alarm Input voltage low alarm.
+
in1_max_alarm Input voltage high alarm.
+
LTC2974, LTC2975, LTC2977, LTC2980, LTC2978, and
LTM2987 only.
in1_lcrit_alarm Input voltage critical low alarm.
+
LTC2974, LTC2975, LTC2977, LTC2980, LTC2978, and
LTM2987 only.
in1_crit_alarm Input voltage critical high alarm.
+
in1_lowest Lowest input voltage.
+
LTC2974, LTC2975, LTC2977, LTC2980, LTC2978, and
LTM2987 only.
in1_highest Highest input voltage.
+
in1_reset_history Reset input voltage history.
in[N]_label "vout[1-8]".
- LTC2974, LTC2975: N=2-5
- LTC2977, LTC2980, LTM2987: N=2-9
- LTC2978: N=2-9
- LTC3880, LTC3882, LTC23886 LTC3887, LTM4675, LTM4676:
- N=2-3
- LTC3883: N=2
+
+ - LTC2974, LTC2975: N=2-5
+ - LTC2977, LTC2980, LTM2987: N=2-9
+ - LTC2978: N=2-9
+ - LTC3880, LTC3882, LTC23886 LTC3887, LTM4675, LTM4676:
+ N=2-3
+ - LTC3883: N=2
+
in[N]_input Measured output voltage.
+
in[N]_min Minimum output voltage.
+
in[N]_max Maximum output voltage.
+
in[N]_lcrit Critical minimum output voltage.
+
in[N]_crit Critical maximum output voltage.
+
in[N]_min_alarm Output voltage low alarm.
+
in[N]_max_alarm Output voltage high alarm.
+
in[N]_lcrit_alarm Output voltage critical low alarm.
+
in[N]_crit_alarm Output voltage critical high alarm.
-in[N]_lowest Lowest output voltage. LTC2974, LTC2975,
- and LTC2978 only.
+
+in[N]_lowest Lowest output voltage.
+
+
+ LTC2974, LTC2975,and LTC2978 only.
+
in[N]_highest Highest output voltage.
+
in[N]_reset_history Reset output voltage history.
temp[N]_input Measured temperature.
- On LTC2974 and LTC2975, temp[1-4] report external
- temperatures, and temp5 reports the chip temperature.
- On LTC2977, LTC2980, LTC2978, and LTM2987, only one
- temperature measurement is supported and reports
- the chip temperature.
- On LTC3880, LTC3882, LTC3887, LTM4675, and LTM4676,
- temp1 and temp2 report external temperatures, and temp3
- reports the chip temperature.
- On LTC3883, temp1 reports an external temperature,
- and temp2 reports the chip temperature.
-temp[N]_min Mimimum temperature. LTC2974, LCT2977, LTM2980, LTC2978,
- and LTM2987 only.
+
+ - On LTC2974 and LTC2975, temp[1-4] report external
+ temperatures, and temp5 reports the chip temperature.
+ - On LTC2977, LTC2980, LTC2978, and LTM2987, only one
+ temperature measurement is supported and reports
+ the chip temperature.
+ - On LTC3880, LTC3882, LTC3887, LTM4675, and LTM4676,
+ temp1 and temp2 report external temperatures, and
+ temp3 reports the chip temperature.
+ - On LTC3883, temp1 reports an external temperature,
+ and temp2 reports the chip temperature.
+
+temp[N]_min Mimimum temperature.
+
+ LTC2974, LCT2977, LTM2980, LTC2978, and LTM2987 only.
+
temp[N]_max Maximum temperature.
+
temp[N]_lcrit Critical low temperature.
+
temp[N]_crit Critical high temperature.
+
temp[N]_min_alarm Temperature low alarm.
+
LTC2974, LTC2975, LTC2977, LTM2980, LTC2978, and
LTM2987 only.
+
temp[N]_max_alarm Temperature high alarm.
+
+
temp[N]_lcrit_alarm Temperature critical low alarm.
+
temp[N]_crit_alarm Temperature critical high alarm.
+
temp[N]_lowest Lowest measured temperature.
- LTC2974, LTC2975, LTC2977, LTM2980, LTC2978, and
- LTM2987 only.
- Not supported for chip temperature sensor on LTC2974 and
- LTC2975.
-temp[N]_highest Highest measured temperature. Not supported for chip
- temperature sensor on LTC2974 and LTC2975.
-temp[N]_reset_history Reset temperature history. Not supported for chip
- temperature sensor on LTC2974 and LTC2975.
+
+ - LTC2974, LTC2975, LTC2977, LTM2980, LTC2978, and
+ LTM2987 only.
+ - Not supported for chip temperature sensor on LTC2974
+ and LTC2975.
+
+temp[N]_highest Highest measured temperature.
+
+ Not supported for chip temperature sensor on
+ LTC2974 and LTC2975.
+
+temp[N]_reset_history Reset temperature history.
+
+ Not supported for chip temperature sensor on
+ LTC2974 and LTC2975.
power1_label "pin". LTC3883 and LTC3886 only.
+
power1_input Measured input power.
power[N]_label "pout[1-4]".
- LTC2974, LTC2975: N=1-4
- LTC2977, LTC2980, LTM2987: Not supported
- LTC2978: Not supported
- LTC3880, LTC3882, LTC3886, LTC3887, LTM4675, LTM4676:
- N=1-2
- LTC3883: N=2
+
+ - LTC2974, LTC2975: N=1-4
+ - LTC2977, LTC2980, LTM2987: Not supported
+ - LTC2978: Not supported
+ - LTC3880, LTC3882, LTC3886, LTC3887, LTM4675, LTM4676:
+ N=1-2
+ - LTC3883: N=2
+
power[N]_input Measured output power.
-curr1_label "iin". LTC3880, LTC3883, LTC3886, LTC3887, LTM4675,
+curr1_label "iin".
+
+ LTC3880, LTC3883, LTC3886, LTC3887, LTM4675,
and LTM4676 only.
+
curr1_input Measured input current.
+
curr1_max Maximum input current.
+
curr1_max_alarm Input current high alarm.
-curr1_highest Highest input current. LTC3883 and LTC3886 only.
-curr1_reset_history Reset input current history. LTC3883 and LTC3886 only.
+
+curr1_highest Highest input current.
+
+ LTC3883 and LTC3886 only.
+
+curr1_reset_history Reset input current history.
+
+ LTC3883 and LTC3886 only.
curr[N]_label "iout[1-4]".
- LTC2974, LTC2975: N=1-4
- LTC2977, LTC2980, LTM2987: not supported
- LTC2978: not supported
- LTC3880, LTC3882, LTC3886, LTC3887, LTM4675, LTM4676:
- N=2-3
- LTC3883: N=2
+
+ - LTC2974, LTC2975: N=1-4
+ - LTC2977, LTC2980, LTM2987: not supported
+ - LTC2978: not supported
+ - LTC3880, LTC3882, LTC3886, LTC3887, LTM4675, LTM4676:
+ N=2-3
+ - LTC3883: N=2
+
curr[N]_input Measured output current.
+
curr[N]_max Maximum output current.
+
curr[N]_crit Critical high output current.
-curr[N]_lcrit Critical low output current. LTC2974 and LTC2975 only.
+
+curr[N]_lcrit Critical low output current.
+
+ LTC2974 and LTC2975 only.
+
curr[N]_max_alarm Output current high alarm.
+
curr[N]_crit_alarm Output current critical high alarm.
+
curr[N]_lcrit_alarm Output current critical low alarm.
+
+ LTC2974 and LTC2975 only.
+
+curr[N]_lowest Lowest output current.
+
LTC2974 and LTC2975 only.
-curr[N]_lowest Lowest output current. LTC2974 and LTC2975 only.
+
curr[N]_highest Highest output current.
+
curr[N]_reset_history Reset output current history.
+======================= ========================================================
=====================
Supported chips:
+
* Linear Technology LTC3815
+
Prefix: 'ltc3815'
+
Addresses scanned: -
+
Datasheet: http://www.linear.com/product/ltc3815
Author: Guenter Roeck <linux@roeck-us.net>
devices explicitly.
Example: the following commands will load the driver for an LTC3815
-at address 0x20 on I2C bus #1:
+at address 0x20 on I2C bus #1::
-# modprobe ltc3815
-# echo ltc3815 0x20 > /sys/bus/i2c/devices/i2c-1/new_device
+ # modprobe ltc3815
+ # echo ltc3815 0x20 > /sys/bus/i2c/devices/i2c-1/new_device
Sysfs attributes
----------------
+======================= =======================================================
in1_label "vin"
in1_input Measured input voltage.
in1_alarm Input voltage alarm.
curr2_alarm Output current alarm.
curr2_highest Highest output current.
curr2_reset_history Reset output current history.
+======================= =======================================================
======================
Supported chips:
+
* Maxim MAX16064
+
Prefix: 'max16064'
+
Addresses scanned: -
+
Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX16064.pdf
Author: Guenter Roeck <linux@roeck-us.net>
The following attributes are supported. Limits are read-write; all other
attributes are read-only.
+======================= ========================================================
in[1-4]_label "vout[1-4]"
in[1-4]_input Measured voltage. From READ_VOUT register.
in[1-4]_min Minimum Voltage. From VOUT_UV_WARN_LIMIT register.
in[1-4]_max Maximum voltage. From VOUT_OV_WARN_LIMIT register.
in[1-4]_lcrit Critical minimum Voltage. VOUT_UV_FAULT_LIMIT register.
-in[1-4]_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT register.
+in[1-4]_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT
+ register.
in[1-4]_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status.
in[1-4]_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status.
-in[1-4]_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT status.
-in[1-4]_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT status.
+in[1-4]_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT
+ status.
+in[1-4]_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT
+ status.
in[1-4]_highest Historical maximum voltage.
in[1-4]_reset_history Write any value to reset history.
status is set.
temp1_highest Historical maximum temperature.
temp1_reset_history Write any value to reset history.
+======================= ========================================================
======================
Supported chips:
+
* maxim MAX20751
+
Prefix: 'max20751'
+
Addresses scanned: -
+
Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX20751.pdf
+
Application note: http://pdfserv.maximintegrated.com/en/an/AN5941.pdf
Author: Guenter Roeck <linux@roeck-us.net>
The following attributes are supported.
+======================= =======================================================
in1_label "vin1"
in1_input Measured voltage.
in1_min Minimum input voltage.
power1_input Output power.
power1_label "pout1"
+======================= =======================================================
======================
Supported chips:
+
* Maxim MAX31785, MAX31785A
+
Prefix: 'max31785' or 'max31785a'
+
Addresses scanned: -
+
Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX31785.pdf
Author: Andrew Jeffery <andrew@aj.id.au>
Sysfs attributes
----------------
+======================= =======================================================
fan[1-4]_alarm Fan alarm.
fan[1-4]_fault Fan fault.
fan[1-8]_input Fan RPM. On the MAX31785A, inputs 5-8 correspond to the
temp[1-11]_input Measured temperature
temp[1-11]_max Maximum temperature
temp[1-11]_max_alarm Chip temperature high alarm
+======================= =======================================================
======================
Supported chips:
+
* Maxim MAX34440
+
Prefixes: 'max34440'
+
Addresses scanned: -
+
Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX34440.pdf
+
* Maxim MAX34441
+
PMBus 5-Channel Power-Supply Manager and Intelligent Fan Controller
+
Prefixes: 'max34441'
+
Addresses scanned: -
+
Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX34441.pdf
+
* Maxim MAX34446
+
PMBus Power-Supply Data Logger
+
Prefixes: 'max34446'
+
Addresses scanned: -
+
Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX34446.pdf
+
* Maxim MAX34451
+
PMBus 16-Channel V/I Monitor and 12-Channel Sequencer/Marginer
+
Prefixes: 'max34451'
+
Addresses scanned: -
+
Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX34451.pdf
+
* Maxim MAX34460
+
PMBus 12-Channel Voltage Monitor & Sequencer
+
Prefix: 'max34460'
+
Addresses scanned: -
+
Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX34460.pdf
+
* Maxim MAX34461
+
PMBus 16-Channel Voltage Monitor & Sequencer
+
Prefix: 'max34461'
+
Addresses scanned: -
+
Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX34461.pdf
Author: Guenter Roeck <linux@roeck-us.net>
The following attributes are supported. Limits are read-write; all other
attributes are read-only.
+In
+~~
+
+======================= =======================================================
in[1-6]_label "vout[1-6]".
in[1-6]_input Measured voltage. From READ_VOUT register.
in[1-6]_min Minimum Voltage. From VOUT_UV_WARN_LIMIT register.
in[1-6]_max Maximum voltage. From VOUT_OV_WARN_LIMIT register.
in[1-6]_lcrit Critical minimum Voltage. VOUT_UV_FAULT_LIMIT register.
-in[1-6]_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT register.
+in[1-6]_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT
+ register.
in[1-6]_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status.
in[1-6]_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status.
-in[1-6]_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT status.
-in[1-6]_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT status.
+in[1-6]_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT
+ status.
+in[1-6]_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT
+ status.
in[1-6]_lowest Historical minimum voltage.
in[1-6]_highest Historical maximum voltage.
in[1-6]_reset_history Write any value to reset history.
+======================= =======================================================
+
+.. note:: MAX34446 only supports in[1-4].
- MAX34446 only supports in[1-4].
+Curr
+~~~~
+======================= ========================================================
curr[1-6]_label "iout[1-6]".
curr[1-6]_input Measured current. From READ_IOUT register.
curr[1-6]_max Maximum current. From IOUT_OC_WARN_LIMIT register.
-curr[1-6]_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT register.
+curr[1-6]_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT
+ register.
curr[1-6]_max_alarm Current high alarm. From IOUT_OC_WARNING status.
curr[1-6]_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status.
curr[1-4]_average Historical average current (MAX34446/34451 only).
curr[1-6]_highest Historical maximum current.
curr[1-6]_reset_history Write any value to reset history.
+======================= ========================================================
+
+.. note::
+
+ - in6 and curr6 attributes only exist for MAX34440.
+ - MAX34446 only supports curr[1-4].
- in6 and curr6 attributes only exist for MAX34440.
- MAX34446 only supports curr[1-4].
+Power
+~~~~~
+======================= ========================================================
power[1,3]_label "pout[1,3]"
power[1,3]_input Measured power.
power[1,3]_average Historical average power.
power[1,3]_highest Historical maximum power.
+======================= ========================================================
- Power attributes only exist for MAX34446.
+.. note:: Power attributes only exist for MAX34446.
+Temp
+~~~~
+
+======================= ========================================================
temp[1-8]_input Measured temperatures. From READ_TEMPERATURE_1 register.
temp1 is the chip's internal temperature. temp2..temp5
are remote I2C temperature sensors. For MAX34441, temp6
temp[1-8]_average Historical average temperature (MAX34446 only).
temp[1-8]_highest Historical maximum temperature.
temp[1-8]_reset_history Write any value to reset history.
+======================= ========================================================
+
+
+.. note::
+ - temp7 and temp8 attributes only exist for MAX34440.
+ - MAX34446 only supports temp[1-3].
+
- temp7 and temp8 attributes only exist for MAX34440.
- MAX34446 only supports temp[1-3].
+.. note::
-MAX34451 supports attribute groups in[1-16] (or curr[1-16] based on input pins)
-and temp[1-5].
-MAX34460 supports attribute groups in[1-12] and temp[1-5].
-MAX34461 supports attribute groups in[1-16] and temp[1-5].
+ - MAX34451 supports attribute groups in[1-16] (or curr[1-16] based on
+ input pins) and temp[1-5].
+ - MAX34460 supports attribute groups in[1-12] and temp[1-5].
+ - MAX34461 supports attribute groups in[1-16] and temp[1-5].
=====================
Supported chips:
+
* Maxim MAX8688
+
Prefix: 'max8688'
+
Addresses scanned: -
+
Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX8688.pdf
Author: Guenter Roeck <linux@roeck-us.net>
The following attributes are supported. Limits are read-write; all other
attributes are read-only.
+======================= ========================================================
in1_label "vout1"
in1_input Measured voltage. From READ_VOUT register.
in1_min Minimum Voltage. From VOUT_UV_WARN_LIMIT register.
in1_max Maximum voltage. From VOUT_OV_WARN_LIMIT register.
in1_lcrit Critical minimum Voltage. VOUT_UV_FAULT_LIMIT register.
-in1_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT register.
+in1_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT
+ register.
in1_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status.
in1_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status.
-in1_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT status.
-in1_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT status.
+in1_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT
+ status.
+in1_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT
+ status.
in1_highest Historical maximum voltage.
in1_reset_history Write any value to reset history.
curr1_label "iout1"
curr1_input Measured current. From READ_IOUT register.
curr1_max Maximum current. From IOUT_OC_WARN_LIMIT register.
-curr1_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT register.
+curr1_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT
+ register.
curr1_max_alarm Current high alarm. From IOUT_OC_WARN_LIMIT register.
curr1_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status.
curr1_highest Historical maximum current.
status is set.
temp1_highest Historical maximum temperature.
temp1_reset_history Write any value to reset history.
+======================= ========================================================
Kernel driver pmbus
-====================
+===================
Supported chips:
+
* Ericsson BMR453, BMR454
+
Prefixes: 'bmr453', 'bmr454'
+
Addresses scanned: -
+
Datasheet:
+
http://archive.ericsson.net/service/internet/picov/get?DocNo=28701-EN/LZT146395
+
* ON Semiconductor ADP4000, NCP4200, NCP4208
+
Prefixes: 'adp4000', 'ncp4200', 'ncp4208'
+
Addresses scanned: -
+
Datasheets:
+
http://www.onsemi.com/pub_link/Collateral/ADP4000-D.PDF
+
http://www.onsemi.com/pub_link/Collateral/NCP4200-D.PDF
+
http://www.onsemi.com/pub_link/Collateral/JUNE%202009-%20REV.%200.PDF
+
* Lineage Power
+
Prefixes: 'mdt040', 'pdt003', 'pdt006', 'pdt012', 'udt020'
+
Addresses scanned: -
+
Datasheets:
+
http://www.lineagepower.com/oem/pdf/PDT003A0X.pdf
+
http://www.lineagepower.com/oem/pdf/PDT006A0X.pdf
+
http://www.lineagepower.com/oem/pdf/PDT012A0X.pdf
+
http://www.lineagepower.com/oem/pdf/UDT020A0X.pdf
+
http://www.lineagepower.com/oem/pdf/MDT040A0X.pdf
+
* Texas Instruments TPS40400, TPS544B20, TPS544B25, TPS544C20, TPS544C25
+
Prefixes: 'tps40400', 'tps544b20', 'tps544b25', 'tps544c20', 'tps544c25'
+
Addresses scanned: -
+
Datasheets:
+
http://www.ti.com/lit/gpn/tps40400
+
http://www.ti.com/lit/gpn/tps544b20
+
http://www.ti.com/lit/gpn/tps544b25
+
http://www.ti.com/lit/gpn/tps544c20
+
http://www.ti.com/lit/gpn/tps544c25
+
* Generic PMBus devices
+
Prefix: 'pmbus'
+
Addresses scanned: -
+
Datasheet: n.a.
+
Author: Guenter Roeck <linux@roeck-us.net>
PMBus devices. You will have to instantiate the devices explicitly.
Example: the following will load the driver for an LTC2978 at address 0x60
-on I2C bus #1:
-$ modprobe pmbus
-$ echo ltc2978 0x60 > /sys/bus/i2c/devices/i2c-1/new_device
+on I2C bus #1::
+
+ $ modprobe pmbus
+ $ echo ltc2978 0x60 > /sys/bus/i2c/devices/i2c-1/new_device
Platform data support
Support for additional PMBus chips can be added by defining chip parameters in
a new chip specific driver file. For example, (untested) code to add support for
-Emerson DS1200 power modules might look as follows.
+Emerson DS1200 power modules might look as follows::
-static struct pmbus_driver_info ds1200_info = {
+ static struct pmbus_driver_info ds1200_info = {
.pages = 1,
/* Note: All other sensors are in linear mode */
.direct[PSC_VOLTAGE_OUT] = true,
| PMBUS_HAVE_PIN | PMBUS_HAVE_POUT
| PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP
| PMBUS_HAVE_FAN12 | PMBUS_HAVE_STATUS_FAN12,
-};
+ };
-static int ds1200_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
+ static int ds1200_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+ {
return pmbus_do_probe(client, id, &ds1200_info);
-}
+ }
-static int ds1200_remove(struct i2c_client *client)
-{
+ static int ds1200_remove(struct i2c_client *client)
+ {
return pmbus_do_remove(client);
-}
+ }
-static const struct i2c_device_id ds1200_id[] = {
+ static const struct i2c_device_id ds1200_id[] = {
{"ds1200", 0},
{}
-};
+ };
-MODULE_DEVICE_TABLE(i2c, ds1200_id);
+ MODULE_DEVICE_TABLE(i2c, ds1200_id);
-/* This is the driver that will be inserted */
-static struct i2c_driver ds1200_driver = {
+ /* This is the driver that will be inserted */
+ static struct i2c_driver ds1200_driver = {
.driver = {
.name = "ds1200",
},
.probe = ds1200_probe,
.remove = ds1200_remove,
.id_table = ds1200_id,
-};
+ };
-static int __init ds1200_init(void)
-{
+ static int __init ds1200_init(void)
+ {
return i2c_add_driver(&ds1200_driver);
-}
+ }
-static void __exit ds1200_exit(void)
-{
+ static void __exit ds1200_exit(void)
+ {
i2c_del_driver(&ds1200_driver);
-}
+ }
Sysfs entries
The following attributes are supported. Limits are read-write; all other
attributes are read-only.
+======================= ========================================================
inX_input Measured voltage. From READ_VIN or READ_VOUT register.
inX_min Minimum Voltage.
From VIN_UV_WARN_LIMIT or VOUT_UV_WARN_LIMIT register.
tempX_crit_alarm Chip temperature critical high alarm. Set by comparing
READ_TEMPERATURE_X with OT_FAULT_LIMIT if
TEMP_OT_FAULT status is set.
+======================= ========================================================
+==================================
PMBus core driver and internal API
==================================
non-standard PMBus commands to standard commands, or to augment standard
command return values with device specific information.
- API functions
- -------------
+API functions
+=============
- Functions provided by chip driver
- ---------------------------------
+Functions provided by chip driver
+---------------------------------
- All functions return the command return value (read) or zero (write) if
- successful. A return value of -ENODATA indicates that there is no manufacturer
- specific command, but that a standard PMBus command may exist. Any other
- negative return value indicates that the commands does not exist for this
- chip, and that no attempt should be made to read or write the standard
- command.
+All functions return the command return value (read) or zero (write) if
+successful. A return value of -ENODATA indicates that there is no manufacturer
+specific command, but that a standard PMBus command may exist. Any other
+negative return value indicates that the commands does not exist for this
+chip, and that no attempt should be made to read or write the standard
+command.
- As mentioned above, an exception to this rule applies to virtual commands,
- which _must_ be handled in driver specific code. See "Virtual PMBus Commands"
- above for more details.
+As mentioned above, an exception to this rule applies to virtual commands,
+which *must* be handled in driver specific code. See "Virtual PMBus Commands"
+above for more details.
- Command execution in the core PMBus driver code is as follows.
+Command execution in the core PMBus driver code is as follows::
if (chip_access_function) {
status = chip_access_function();
return -EINVAL;
return generic_access();
- Chip drivers may provide pointers to the following functions in struct
- pmbus_driver_info. All functions are optional.
+Chip drivers may provide pointers to the following functions in struct
+pmbus_driver_info. All functions are optional.
+
+::
int (*read_byte_data)(struct i2c_client *client, int page, int reg);
- Read byte from page <page>, register <reg>.
- <page> may be -1, which means "current page".
+Read byte from page <page>, register <reg>.
+<page> may be -1, which means "current page".
+
+
+::
int (*read_word_data)(struct i2c_client *client, int page, int reg);
- Read word from page <page>, register <reg>.
+Read word from page <page>, register <reg>.
+
+::
int (*write_word_data)(struct i2c_client *client, int page, int reg,
- u16 word);
+ u16 word);
- Write word to page <page>, register <reg>.
+Write word to page <page>, register <reg>.
+
+::
int (*write_byte)(struct i2c_client *client, int page, u8 value);
- Write byte to page <page>, register <reg>.
- <page> may be -1, which means "current page".
+Write byte to page <page>, register <reg>.
+<page> may be -1, which means "current page".
+
+::
int (*identify)(struct i2c_client *client, struct pmbus_driver_info *info);
- Determine supported PMBus functionality. This function is only necessary
- if a chip driver supports multiple chips, and the chip functionality is not
- pre-determined. It is currently only used by the generic pmbus driver
- (pmbus.c).
+Determine supported PMBus functionality. This function is only necessary
+if a chip driver supports multiple chips, and the chip functionality is not
+pre-determined. It is currently only used by the generic pmbus driver
+(pmbus.c).
+
+Functions exported by core driver
+---------------------------------
- Functions exported by core driver
- ---------------------------------
+Chip drivers are expected to use the following functions to read or write
+PMBus registers. Chip drivers may also use direct I2C commands. If direct I2C
+commands are used, the chip driver code must not directly modify the current
+page, since the selected page is cached in the core driver and the core driver
+will assume that it is selected. Using pmbus_set_page() to select a new page
+is mandatory.
- Chip drivers are expected to use the following functions to read or write
- PMBus registers. Chip drivers may also use direct I2C commands. If direct I2C
- commands are used, the chip driver code must not directly modify the current
- page, since the selected page is cached in the core driver and the core driver
- will assume that it is selected. Using pmbus_set_page() to select a new page
- is mandatory.
+::
int pmbus_set_page(struct i2c_client *client, u8 page);
- Set PMBus page register to <page> for subsequent commands.
+Set PMBus page register to <page> for subsequent commands.
+
+::
int pmbus_read_word_data(struct i2c_client *client, u8 page, u8 reg);
- Read word data from <page>, <reg>. Similar to i2c_smbus_read_word_data(), but
- selects page first.
+Read word data from <page>, <reg>. Similar to i2c_smbus_read_word_data(), but
+selects page first.
+
+::
int pmbus_write_word_data(struct i2c_client *client, u8 page, u8 reg,
u16 word);
- Write word data to <page>, <reg>. Similar to i2c_smbus_write_word_data(), but
- selects page first.
+Write word data to <page>, <reg>. Similar to i2c_smbus_write_word_data(), but
+selects page first.
+
+::
int pmbus_read_byte_data(struct i2c_client *client, int page, u8 reg);
- Read byte data from <page>, <reg>. Similar to i2c_smbus_read_byte_data(), but
- selects page first. <page> may be -1, which means "current page".
+Read byte data from <page>, <reg>. Similar to i2c_smbus_read_byte_data(), but
+selects page first. <page> may be -1, which means "current page".
+
+::
int pmbus_write_byte(struct i2c_client *client, int page, u8 value);
- Write byte data to <page>, <reg>. Similar to i2c_smbus_write_byte(), but
- selects page first. <page> may be -1, which means "current page".
+Write byte data to <page>, <reg>. Similar to i2c_smbus_write_byte(), but
+selects page first. <page> may be -1, which means "current page".
+
+::
void pmbus_clear_faults(struct i2c_client *client);
- Execute PMBus "Clear Fault" command on all chip pages.
- This function calls the device specific write_byte function if defined.
- Therefore, it must _not_ be called from that function.
+Execute PMBus "Clear Fault" command on all chip pages.
+This function calls the device specific write_byte function if defined.
+Therefore, it must _not_ be called from that function.
+
+::
bool pmbus_check_byte_register(struct i2c_client *client, int page, int reg);
- Check if byte register exists. Return true if the register exists, false
- otherwise.
- This function calls the device specific write_byte function if defined to
- obtain the chip status. Therefore, it must _not_ be called from that function.
+Check if byte register exists. Return true if the register exists, false
+otherwise.
+This function calls the device specific write_byte function if defined to
+obtain the chip status. Therefore, it must _not_ be called from that function.
+
+::
bool pmbus_check_word_register(struct i2c_client *client, int page, int reg);
- Check if word register exists. Return true if the register exists, false
- otherwise.
- This function calls the device specific write_byte function if defined to
- obtain the chip status. Therefore, it must _not_ be called from that function.
+Check if word register exists. Return true if the register exists, false
+otherwise.
+This function calls the device specific write_byte function if defined to
+obtain the chip status. Therefore, it must _not_ be called from that function.
+
+::
int pmbus_do_probe(struct i2c_client *client, const struct i2c_device_id *id,
- struct pmbus_driver_info *info);
+ struct pmbus_driver_info *info);
+
+Execute probe function. Similar to standard probe function for other drivers,
+with the pointer to struct pmbus_driver_info as additional argument. Calls
+identify function if supported. Must only be called from device probe
+function.
- Execute probe function. Similar to standard probe function for other drivers,
- with the pointer to struct pmbus_driver_info as additional argument. Calls
- identify function if supported. Must only be called from device probe
- function.
+::
void pmbus_do_remove(struct i2c_client *client);
- Execute driver remove function. Similar to standard driver remove function.
+Execute driver remove function. Similar to standard driver remove function.
+
+::
const struct pmbus_driver_info
*pmbus_get_driver_info(struct i2c_client *client);
- Return pointer to struct pmbus_driver_info as passed to pmbus_do_probe().
+Return pointer to struct pmbus_driver_info as passed to pmbus_do_probe().
PMBus driver platform data
==========================
PMBus platform data is defined in include/linux/pmbus.h. Platform data
-currently only provides a flag field with a single bit used.
+currently only provides a flag field with a single bit used::
-#define PMBUS_SKIP_STATUS_CHECK (1 << 0)
+ #define PMBUS_SKIP_STATUS_CHECK (1 << 0)
-struct pmbus_platform_data {
- u32 flags; /* Device specific flags */
-};
+ struct pmbus_platform_data {
+ u32 flags; /* Device specific flags */
+ };
Flags
-----
PMBUS_SKIP_STATUS_CHECK
-
-During register detection, skip checking the status register for
-communication or command errors.
+ During register detection, skip checking the status register for
+ communication or command errors.
Some PMBus chips respond with valid data when trying to read an unsupported
register. For such chips, checking the status register is mandatory when
======================
Supported chips:
+
* TI TPS40422
+
Prefix: 'tps40422'
+
Addresses scanned: -
+
Datasheet: http://www.ti.com/lit/gpn/tps40422
Author: Zhu Laiwen <richard.zhu@nsn.com>
The following attributes are supported.
+======================= =======================================================
in[1-2]_label "vout[1-2]"
in[1-2]_input Measured voltage. From READ_VOUT register.
in[1-2]_alarm voltage alarm.
curr[1-2]_input Measured current. From READ_IOUT register.
curr[1-2]_label "iout[1-2]"
curr1_max Maximum current. From IOUT_OC_WARN_LIMIT register.
-curr1_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT register.
+curr1_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT
+ register.
curr1_max_alarm Current high alarm. From IOUT_OC_WARN_LIMIT status.
curr1_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status.
curr2_alarm Current high alarm. From IOUT_OC_WARNING status.
-temp1_input Measured temperature. From READ_TEMPERATURE_2 register on page 0.
+temp1_input Measured temperature. From READ_TEMPERATURE_2 register
+ on page 0.
temp1_max Maximum temperature. From OT_WARN_LIMIT register.
temp1_crit Critical high temperature. From OT_FAULT_LIMIT register.
temp1_max_alarm Chip temperature high alarm. Set by comparing
- READ_TEMPERATURE_2 on page 0 with OT_WARN_LIMIT if TEMP_OT_WARNING
- status is set.
+ READ_TEMPERATURE_2 on page 0 with OT_WARN_LIMIT if
+ TEMP_OT_WARNING status is set.
temp1_crit_alarm Chip temperature critical high alarm. Set by comparing
- READ_TEMPERATURE_2 on page 0 with OT_FAULT_LIMIT if TEMP_OT_FAULT
- status is set.
-temp2_input Measured temperature. From READ_TEMPERATURE_2 register on page 1.
+ READ_TEMPERATURE_2 on page 0 with OT_FAULT_LIMIT if
+ TEMP_OT_FAULT status is set.
+temp2_input Measured temperature. From READ_TEMPERATURE_2 register
+ on page 1.
temp2_alarm Chip temperature alarm on page 1.
+======================= =======================================================
=====================
Supported chips:
+
* TI UCD90120, UCD90124, UCD90160, UCD9090, and UCD90910
+
Prefixes: 'ucd90120', 'ucd90124', 'ucd90160', 'ucd9090', 'ucd90910'
+
Addresses scanned: -
+
Datasheets:
- http://focus.ti.com/lit/ds/symlink/ucd90120.pdf
- http://focus.ti.com/lit/ds/symlink/ucd90124.pdf
- http://focus.ti.com/lit/ds/symlink/ucd90160.pdf
- http://focus.ti.com/lit/ds/symlink/ucd9090.pdf
- http://focus.ti.com/lit/ds/symlink/ucd90910.pdf
+
+ - http://focus.ti.com/lit/ds/symlink/ucd90120.pdf
+ - http://focus.ti.com/lit/ds/symlink/ucd90124.pdf
+ - http://focus.ti.com/lit/ds/symlink/ucd90160.pdf
+ - http://focus.ti.com/lit/ds/symlink/ucd9090.pdf
+ - http://focus.ti.com/lit/ds/symlink/ucd90910.pdf
Author: Guenter Roeck <linux@roeck-us.net>
The following attributes are supported. Limits are read-write; all other
attributes are read-only.
+======================= ========================================================
in[1-12]_label "vout[1-12]".
in[1-12]_input Measured voltage. From READ_VOUT register.
in[1-12]_min Minimum Voltage. From VOUT_UV_WARN_LIMIT register.
in[1-12]_max Maximum voltage. From VOUT_OV_WARN_LIMIT register.
in[1-12]_lcrit Critical minimum Voltage. VOUT_UV_FAULT_LIMIT register.
-in[1-12]_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT register.
+in[1-12]_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT
+ register.
in[1-12]_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status.
in[1-12]_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status.
-in[1-12]_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT status.
-in[1-12]_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT status.
+in[1-12]_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT
+ status.
+in[1-12]_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT
+ status.
curr[1-12]_label "iout[1-12]".
curr[1-12]_input Measured current. From READ_IOUT register.
curr[1-12]_max Maximum current. From IOUT_OC_WARN_LIMIT register.
-curr[1-12]_lcrit Critical minimum output current. From IOUT_UC_FAULT_LIMIT
+curr[1-12]_lcrit Critical minimum output current. From
+ IOUT_UC_FAULT_LIMIT register.
+curr[1-12]_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT
register.
-curr[1-12]_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT register.
curr[1-12]_max_alarm Current high alarm. From IOUT_OC_WARNING status.
curr[1-12]_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status.
created only for enabled fans.
Note that even though UCD90910 supports up to 10 fans,
only up to four fans are currently supported.
+======================= ========================================================
=====================
Supported chips:
+
* TI UCD9220, UCD9222, UCD9224, UCD9240, UCD9244, UCD9246, and UCD9248
+
Prefixes: 'ucd9220', 'ucd9222', 'ucd9224', 'ucd9240', 'ucd9244', 'ucd9246',
- 'ucd9248'
+ 'ucd9248'
+
Addresses scanned: -
+
Datasheets:
- http://focus.ti.com/lit/ds/symlink/ucd9220.pdf
- http://focus.ti.com/lit/ds/symlink/ucd9222.pdf
- http://focus.ti.com/lit/ds/symlink/ucd9224.pdf
- http://focus.ti.com/lit/ds/symlink/ucd9240.pdf
- http://focus.ti.com/lit/ds/symlink/ucd9244.pdf
- http://focus.ti.com/lit/ds/symlink/ucd9246.pdf
- http://focus.ti.com/lit/ds/symlink/ucd9248.pdf
+
+ - http://focus.ti.com/lit/ds/symlink/ucd9220.pdf
+ - http://focus.ti.com/lit/ds/symlink/ucd9222.pdf
+ - http://focus.ti.com/lit/ds/symlink/ucd9224.pdf
+ - http://focus.ti.com/lit/ds/symlink/ucd9240.pdf
+ - http://focus.ti.com/lit/ds/symlink/ucd9244.pdf
+ - http://focus.ti.com/lit/ds/symlink/ucd9246.pdf
+ - http://focus.ti.com/lit/ds/symlink/ucd9248.pdf
Author: Guenter Roeck <linux@roeck-us.net>
The following attributes are supported. Limits are read-write; all other
attributes are read-only.
+======================= ========================================================
in1_label "vin".
in1_input Measured voltage. From READ_VIN register.
in1_min Minimum Voltage. From VIN_UV_WARN_LIMIT register.
in1_max Maximum voltage. From VIN_OV_WARN_LIMIT register.
in1_lcrit Critical minimum Voltage. VIN_UV_FAULT_LIMIT register.
-in1_crit Critical maximum voltage. From VIN_OV_FAULT_LIMIT register.
+in1_crit Critical maximum voltage. From VIN_OV_FAULT_LIMIT
+ register.
in1_min_alarm Voltage low alarm. From VIN_UV_WARNING status.
in1_max_alarm Voltage high alarm. From VIN_OV_WARNING status.
in1_lcrit_alarm Voltage critical low alarm. From VIN_UV_FAULT status.
in[2-5]_min Minimum Voltage. From VOUT_UV_WARN_LIMIT register.
in[2-5]_max Maximum voltage. From VOUT_OV_WARN_LIMIT register.
in[2-5]_lcrit Critical minimum Voltage. VOUT_UV_FAULT_LIMIT register.
-in[2-5]_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT register.
+in[2-5]_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT
+ register.
in[2-5]_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status.
in[2-5]_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status.
-in[2-5]_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT status.
-in[2-5]_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT status.
+in[2-5]_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT
+ status.
+in[2-5]_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT
+ status.
curr1_label "iin".
curr1_input Measured current. From READ_IIN register.
curr[2-5]_label "iout[1-4]".
curr[2-5]_input Measured current. From READ_IOUT register.
curr[2-5]_max Maximum current. From IOUT_OC_WARN_LIMIT register.
-curr[2-5]_lcrit Critical minimum output current. From IOUT_UC_FAULT_LIMIT
+curr[2-5]_lcrit Critical minimum output current. From
+ IOUT_UC_FAULT_LIMIT register.
+curr[2-5]_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT
register.
-curr[2-5]_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT register.
curr[2-5]_max_alarm Current high alarm. From IOUT_OC_WARNING status.
curr[2-5]_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status.
rails. See chip datasheets for details.
temp[1-5]_input Measured temperatures. From READ_TEMPERATURE_1 and
- READ_TEMPERATURE_2 registers.
+ READ_TEMPERATURE_2 registers.
temp1 is the chip internal temperature. temp[2-5] are
rail temperatures. temp[2-5] attributes are only
created for enabled rails. See chip datasheets for
fan1_input Fan RPM. ucd9240 only.
fan1_alarm Fan alarm. ucd9240 only.
fan1_fault Fan fault. ucd9240 only.
+======================= ========================================================
====================
Supported chips:
+
* Intersil / Zilker Labs ZL2004
+
Prefix: 'zl2004'
+
Addresses scanned: -
+
Datasheet: http://www.intersil.com/data/fn/fn6847.pdf
+
* Intersil / Zilker Labs ZL2005
+
Prefix: 'zl2005'
+
Addresses scanned: -
+
Datasheet: http://www.intersil.com/data/fn/fn6848.pdf
+
* Intersil / Zilker Labs ZL2006
+
Prefix: 'zl2006'
+
Addresses scanned: -
+
Datasheet: http://www.intersil.com/data/fn/fn6850.pdf
+
* Intersil / Zilker Labs ZL2008
+
Prefix: 'zl2008'
+
Addresses scanned: -
+
Datasheet: http://www.intersil.com/data/fn/fn6859.pdf
+
* Intersil / Zilker Labs ZL2105
+
Prefix: 'zl2105'
+
Addresses scanned: -
+
Datasheet: http://www.intersil.com/data/fn/fn6851.pdf
+
* Intersil / Zilker Labs ZL2106
+
Prefix: 'zl2106'
+
Addresses scanned: -
+
Datasheet: http://www.intersil.com/data/fn/fn6852.pdf
+
* Intersil / Zilker Labs ZL6100
+
Prefix: 'zl6100'
+
Addresses scanned: -
+
Datasheet: http://www.intersil.com/data/fn/fn6876.pdf
+
* Intersil / Zilker Labs ZL6105
+
Prefix: 'zl6105'
+
Addresses scanned: -
+
Datasheet: http://www.intersil.com/data/fn/fn6906.pdf
+
* Intersil / Zilker Labs ZL9101M
+
Prefix: 'zl9101'
+
Addresses scanned: -
+
Datasheet: http://www.intersil.com/data/fn/fn7669.pdf
+
* Intersil / Zilker Labs ZL9117M
+
Prefix: 'zl9117'
+
Addresses scanned: -
+
Datasheet: http://www.intersil.com/data/fn/fn7914.pdf
+
* Ericsson BMR450, BMR451
+
Prefix: 'bmr450', 'bmr451'
+
Addresses scanned: -
+
Datasheet:
+
http://archive.ericsson.net/service/internet/picov/get?DocNo=28701-EN/LZT146401
+
* Ericsson BMR462, BMR463, BMR464
+
Prefixes: 'bmr462', 'bmr463', 'bmr464'
+
Addresses scanned: -
+
Datasheet:
-http://archive.ericsson.net/service/internet/picov/get?DocNo=28701-EN/LZT146256
+ http://archive.ericsson.net/service/internet/picov/get?DocNo=28701-EN/LZT146256
Author: Guenter Roeck <linux@roeck-us.net>
devices explicitly. Please see Documentation/i2c/instantiating-devices for
details.
-WARNING: Do not access chip registers using the i2cdump command, and do not use
-any of the i2ctools commands on a command register used to save and restore
-configuration data (0x11, 0x12, 0x15, 0x16, and 0xf4). The chips supported by
-this driver interpret any access to those command registers (including read
-commands) as request to execute the command in question. Unless write accesses
-to those registers are protected, this may result in power loss, board resets,
-and/or Flash corruption. Worst case, your board may turn into a brick.
+.. warning::
+
+ Do not access chip registers using the i2cdump command, and do not use
+ any of the i2ctools commands on a command register used to save and restore
+ configuration data (0x11, 0x12, 0x15, 0x16, and 0xf4). The chips supported by
+ this driver interpret any access to those command registers (including read
+ commands) as request to execute the command in question. Unless write accesses
+ to those registers are protected, this may result in power loss, board resets,
+ and/or Flash corruption. Worst case, your board may turn into a brick.
Platform data support
The following attributes are supported. Limits are read-write; all other
attributes are read-only.
+======================= ========================================================
in1_label "vin"
in1_input Measured input voltage.
in1_min Minimum input voltage.
temp[12]_max_alarm Chip temperature high alarm.
temp[12]_lcrit_alarm Chip temperature critical low alarm.
temp[12]_crit_alarm Chip temperature critical high alarm.
+======================= ========================================================
projects / platform / kernel / linux-starfive.git / commitdiff