1f61cab8a7
MAX20751 is a multiphase power controller with internal buck converter. It uses VR12.0 to report the output voltage. This requires an explicit driver, since the VR version can not be auto-detected. The chip supports a manufacturer specific command to fine-tune the output voltage. This command is not currently supported. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
78 lines
2.0 KiB
Plaintext
78 lines
2.0 KiB
Plaintext
Kernel driver max20751
|
|
======================
|
|
|
|
Supported chips:
|
|
* maxim MAX20751
|
|
Prefix: 'max20751'
|
|
Addresses scanned: -
|
|
Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX20751.pdf
|
|
Application note: http://pdfserv.maximintegrated.com/en/an/AN5941.pdf
|
|
|
|
Author: Guenter Roeck <linux@roeck-us.net>
|
|
|
|
|
|
Description
|
|
-----------
|
|
|
|
This driver supports MAX20751 Multiphase Master with PMBus Interface
|
|
and Internal Buck Converter.
|
|
|
|
The driver is a client driver to the core PMBus driver.
|
|
Please see Documentation/hwmon/pmbus 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 for
|
|
details.
|
|
|
|
|
|
Platform data support
|
|
---------------------
|
|
|
|
The driver supports standard PMBus driver platform data.
|
|
|
|
|
|
Sysfs entries
|
|
-------------
|
|
|
|
The following attributes are supported.
|
|
|
|
in1_label "vin1"
|
|
in1_input Measured voltage.
|
|
in1_min Minimum input voltage.
|
|
in1_max Maximum input voltage.
|
|
in1_lcrit Critical minimum input voltage.
|
|
in1_crit Critical maximum input voltage.
|
|
in1_min_alarm Input voltage low alarm.
|
|
in1_lcrit_alarm Input voltage critical low alarm.
|
|
in1_min_alarm Input voltage low alarm.
|
|
in1_max_alarm Input voltage high alarm.
|
|
|
|
in2_label "vout1"
|
|
in2_input Measured voltage.
|
|
in2_min Minimum output voltage.
|
|
in2_max Maximum output voltage.
|
|
in2_lcrit Critical minimum output voltage.
|
|
in2_crit Critical maximum output voltage.
|
|
in2_min_alarm Output voltage low alarm.
|
|
in2_lcrit_alarm Output voltage critical low alarm.
|
|
in2_min_alarm Output voltage low alarm.
|
|
in2_max_alarm Output voltage high alarm.
|
|
|
|
curr1_input Measured output current.
|
|
curr1_label "iout1"
|
|
curr1_max Maximum output current.
|
|
curr1_alarm Current high alarm.
|
|
|
|
temp1_input Measured temperature.
|
|
temp1_max Maximum temperature.
|
|
temp1_crit Critical high temperature.
|
|
temp1_max_alarm Chip temperature high alarm.
|
|
temp1_crit_alarm Chip temperature critical high alarm.
|
|
|
|
power1_input Output power.
|
|
power1_label "pout1"
|