From: Tao Ren <rentao.bupt@xxxxxxxxx> Add documentation for bel-pfe pmbus driver which supports BEL PFE1100 and PFE3000 power supplies. Signed-off-by: Tao Ren <rentao.bupt@xxxxxxxxx> --- No change in v2. Documentation/hwmon/bel-pfe.rst | 112 ++++++++++++++++++++++++++++++++ 1 file changed, 112 insertions(+) create mode 100644 Documentation/hwmon/bel-pfe.rst diff --git a/Documentation/hwmon/bel-pfe.rst b/Documentation/hwmon/bel-pfe.rst new file mode 100644 index 000000000000..4b4a7d67854c --- /dev/null +++ b/Documentation/hwmon/bel-pfe.rst @@ -0,0 +1,112 @@ +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@xxxxxxxxx> + + +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. -- 2.17.1
