[PATCH v2 2/2] docs: hwmon: Document bel-pfe pmbus driver

[Tao Ren]

On Sat, Nov 02, 2019 at 08:31:15AM -0700, Guenter Roeck wrote:
> On Tue, Oct 29, 2019 at 11:20:54AM -0700, rentao.bupt at gmail.com wrote:
> > From: Tao Ren <rentao.bupt at gmail.com>
> > 
> > Add documentation for bel-pfe pmbus driver which supports BEL PFE1100 and
> > PFE3000 power supplies.
> > 
> > Signed-off-by: Tao Ren <rentao.bupt at gmail.com>
> 
> Applied after adding bel-pfe to index.rst.
> 
> Thanks,
> Guenter

Thank you Guenter. I didn't know index.rst needs to be updated; will
do it for my future doc patches.


Cheers,

Tao

> > ---
> >  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 at 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.