mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-15 00:34:10 +08:00
61412ef12a
Add documentation for bel-pfe pmbus driver which supports BEL PFE1100 and PFE3000 power supplies. Signed-off-by: Tao Ren <rentao.bupt@gmail.com> Link: https://lore.kernel.org/r/20191029182054.32279-3-rentao.bupt@gmail.com [groeck: Added bel-pfe to index.rst] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
113 lines
3.0 KiB
ReStructuredText
113 lines
3.0 KiB
ReStructuredText
Kernel driver bel-pfe
|
|
======================
|
|
|
|
Supported chips:
|
|
|
|
* BEL PFE1100
|
|
|
|
Prefixes: 'pfe1100'
|
|
|
|
Addresses scanned: -
|
|
|
|
Datasheet: https://www.belfuse.com/resources/datasheets/powersolutions/ds-bps-pfe1100-12-054xa.pdf
|
|
|
|
* BEL PFE3000
|
|
|
|
Prefixes: 'pfe3000'
|
|
|
|
Addresses scanned: -
|
|
|
|
Datasheet: https://www.belfuse.com/resources/datasheets/powersolutions/ds-bps-pfe3000-series.pdf
|
|
|
|
Author: Tao Ren <rentao.bupt@gmail.com>
|
|
|
|
|
|
Description
|
|
-----------
|
|
|
|
This driver supports hardware monitoring for below power supply devices
|
|
which support PMBus Protocol:
|
|
|
|
* BEL PFE1100
|
|
|
|
1100 Watt AC to DC power-factor-corrected (PFC) power supply.
|
|
PMBus Communication Manual is not publicly available.
|
|
|
|
* BEL PFE3000
|
|
|
|
3000 Watt AC/DC power-factor-corrected (PFC) and DC-DC power supply.
|
|
PMBus Communication Manual is not publicly available.
|
|
|
|
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.
|
|
|
|
Example: the following will load the driver for an PFE3000 at address 0x20
|
|
on I2C bus #1::
|
|
|
|
$ modprobe bel-pfe
|
|
$ echo pfe3000 0x20 > /sys/bus/i2c/devices/i2c-1/new_device
|
|
|
|
|
|
Platform data support
|
|
---------------------
|
|
|
|
The driver supports standard PMBus driver platform data.
|
|
|
|
|
|
Sysfs entries
|
|
-------------
|
|
|
|
======================= =======================================================
|
|
curr1_label "iin"
|
|
curr1_input Measured input current
|
|
curr1_max Input current max value
|
|
curr1_max_alarm Input current max alarm
|
|
|
|
curr[2-3]_label "iout[1-2]"
|
|
curr[2-3]_input Measured output current
|
|
curr[2-3]_max Output current max value
|
|
curr[2-3]_max_alarm Output current max alarm
|
|
|
|
fan[1-2]_input Fan 1 and 2 speed in RPM
|
|
fan1_target Set fan speed reference for both fans
|
|
|
|
in1_label "vin"
|
|
in1_input Measured input voltage
|
|
in1_crit Input voltage critical max value
|
|
in1_crit_alarm Input voltage critical max alarm
|
|
in1_lcrit Input voltage critical min value
|
|
in1_lcrit_alarm Input voltage critical min alarm
|
|
in1_max Input voltage max value
|
|
in1_max_alarm Input voltage max alarm
|
|
|
|
in2_label "vcap"
|
|
in2_input Hold up capacitor voltage
|
|
|
|
in[3-8]_label "vout[1-3,5-7]"
|
|
in[3-8]_input Measured output voltage
|
|
in[3-4]_alarm vout[1-2] output voltage alarm
|
|
|
|
power[1-2]_label "pin[1-2]"
|
|
power[1-2]_input Measured input power
|
|
power[1-2]_alarm Input power high alarm
|
|
|
|
power[3-4]_label "pout[1-2]"
|
|
power[3-4]_input Measured output power
|
|
|
|
temp[1-3]_input Measured temperature
|
|
temp[1-3]_alarm Temperature alarm
|
|
======================= =======================================================
|
|
|
|
.. note::
|
|
|
|
- curr3, fan2, vout[2-7], vcap, pin2, pout2 and temp3 attributes only
|
|
exist for PFE3000.
|