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- .. SPDX-License-Identifier: GPL-2.0
- Kernel driver stpddc60
- ======================
- Supported chips:
- * ST STPDDC60
- Prefix: 'stpddc60', 'bmr481'
- Addresses scanned: -
- Datasheet: https://flexpowermodules.com/documents/fpm-techspec-bmr481
- Author: Erik Rosen <[email protected]>
- Description
- -----------
- This driver supports hardware monitoring for ST STPDDC60 controller chip and
- compatible modules.
- The driver is a client driver to the core PMBus driver. Please see
- Documentation/hwmon/pmbus.rst and Documentation.hwmon/pmbus-core 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.
- The vout under- and over-voltage limits are set in relation to the commanded
- output voltage as a positive or negative offset in the interval 50mV to 400mV
- in 50mV steps. This means that the absolute values of the limits will change
- when the commanded output voltage changes. Also, care should be taken when
- writing to those limits since in the worst case the commanded output voltage
- could change at the same time as the limit is written to, wich will lead to
- unpredictable results.
- Platform data support
- ---------------------
- The driver supports standard PMBus driver platform data.
- Sysfs entries
- -------------
- The following attributes are supported. Vin, iout, pout and temp limits
- are read-write; all other attributes are read-only.
- ======================= ========================================================
- in1_label "vin"
- in1_input Measured input voltage.
- in1_lcrit Critical minimum input voltage.
- in1_crit Critical maximum input voltage.
- in1_lcrit_alarm Input voltage critical low alarm.
- in1_crit_alarm Input voltage critical high alarm.
- in2_label "vout1"
- in2_input Measured output voltage.
- in2_lcrit Critical minimum output voltage.
- in2_crit Critical maximum output voltage.
- in2_lcrit_alarm Critical output voltage critical low alarm.
- in2_crit_alarm Critical output voltage critical high alarm.
- curr1_label "iout1"
- curr1_input Measured output current.
- curr1_max Maximum output current.
- curr1_max_alarm Output current high alarm.
- curr1_crit Critical maximum output current.
- curr1_crit_alarm Output current critical high alarm.
- power1_label "pout1"
- power1_input Measured output power.
- power1_crit Critical maximum output power.
- power1_crit_alarm Output power critical high alarm.
- temp1_input Measured maximum temperature of all phases.
- temp1_max Maximum temperature limit.
- temp1_max_alarm High temperature alarm.
- temp1_crit Critical maximum temperature limit.
- temp1_crit_alarm Critical maximum temperature alarm.
- ======================= ========================================================
|
