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authorMauro Carvalho Chehab <mchehab+samsung@kernel.org>2019-04-17 06:46:29 -0300
committerGuenter Roeck <linux@roeck-us.net>2019-04-17 10:37:23 -0700
commit7ebd8b66dd9e5a0b65e5ee5e2b8e7ca382ec97b7 (patch)
tree9db30159bd32bec125c7d49e80a79bb7c4da0c8e /Documentation/hwmon/ibmpowernv
parentb04f2f7d387b3160883c2a1f5e2285483a791e82 (diff)
downloadlinux-7ebd8b66dd9e5a0b65e5ee5e2b8e7ca382ec97b7.tar.bz2
docs: hwmon: Add an index file and rename docs to *.rst
Now that all files were converted to ReST format, rename them and add an index. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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-Kernel Driver IBMPOWERNV
-========================
-
-Supported systems:
-
- * Any recent IBM P servers based on POWERNV platform
-
-Author: Neelesh Gupta
-
-Description
------------
-
-This driver implements reading the platform sensors data like temperature/fan/
-voltage/power for 'POWERNV' platform.
-
-The driver uses the platform device infrastructure. It probes the device tree
-for sensor devices during the __init phase and registers them with the 'hwmon'.
-'hwmon' populates the 'sysfs' tree having attribute files, each for a given
-sensor type and its attribute data.
-
-All the nodes in the DT appear under "/ibm,opal/sensors" and each valid node in
-the DT maps to an attribute file in 'sysfs'. The node exports unique 'sensor-id'
-which the driver uses to make an OPAL call to the firmware.
-
-Usage notes
------------
-The driver is built statically with the kernel by enabling the config
-CONFIG_SENSORS_IBMPOWERNV. It can also be built as module 'ibmpowernv'.
-
-Sysfs attributes
-----------------
-
-======================= =======================================================
-fanX_input Measured RPM value.
-fanX_min Threshold RPM for alert generation.
-fanX_fault - 0: No fail condition
- - 1: Failing fan
-
-tempX_input Measured ambient temperature.
-tempX_max Threshold ambient temperature for alert generation.
-tempX_highest Historical maximum temperature
-tempX_lowest Historical minimum temperature
-tempX_enable Enable/disable all temperature sensors belonging to the
- sub-group. In POWER9, this attribute corresponds to
- each OCC. Using this attribute each OCC can be asked to
- disable/enable all of its temperature sensors.
-
- - 1: Enable
- - 0: Disable
-
-inX_input Measured power supply voltage (millivolt)
-inX_fault - 0: No fail condition.
- - 1: Failing power supply.
-inX_highest Historical maximum voltage
-inX_lowest Historical minimum voltage
-inX_enable Enable/disable all voltage sensors belonging to the
- sub-group. In POWER9, this attribute corresponds to
- each OCC. Using this attribute each OCC can be asked to
- disable/enable all of its voltage sensors.
-
- - 1: Enable
- - 0: Disable
-
-powerX_input Power consumption (microWatt)
-powerX_input_highest Historical maximum power
-powerX_input_lowest Historical minimum power
-powerX_enable Enable/disable all power sensors belonging to the
- sub-group. In POWER9, this attribute corresponds to
- each OCC. Using this attribute each OCC can be asked to
- disable/enable all of its power sensors.
-
- - 1: Enable
- - 0: Disable
-
-currX_input Measured current (milliampere)
-currX_highest Historical maximum current
-currX_lowest Historical minimum current
-currX_enable Enable/disable all current sensors belonging to the
- sub-group. In POWER9, this attribute corresponds to
- each OCC. Using this attribute each OCC can be asked to
- disable/enable all of its current sensors.
-
- - 1: Enable
- - 0: Disable
-
-energyX_input Cumulative energy (microJoule)
-======================= =======================================================