Commit 42bfe7dd authored by Erik Rosen's avatar Erik Rosen Committed by Guenter Roeck
Browse files

hwmon: (pmbus/stpddc60) Add ST STPDDC60 pmbus driver 



Add hardware monitoring support for ST STPDDC60 Unversal Digital
Multicell Controller.

Signed-off-by: default avatarErik Rosen <erik.rosen@metormote.com>
Link: https://lore.kernel.org/r/20210218115249.28513-3-erik.rosen@metormote.com


[groeck: Fixed whitespace error in Makefile]
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent d3e33067

Documentation/hwmon/index.rst

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@@ -169,6 +169,7 @@ Hardware Monitoring Kernel Drivers 
   smsc47m192

   smsc47m1

   sparx5-temp

   stpddc60

   tc654

   tc74

   thmc50

Documentation/hwmon/stpddc60.rst

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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 <erik.rosen@metormote.com>





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.

======================= ========================================================

MAINTAINERS

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@@ -16947,6 +16947,13 @@ L: linux-i2c@vger.kernel.org 
S:	Maintained

F:	drivers/i2c/busses/i2c-stm32*









ST STPDDC60 DRIVER









M:	Daniel Nilsson <daniel.nilsson@flex.com>









L:	linux-hwmon@vger.kernel.org









S:	Maintained









F:	Documentation/hwmon/stpddc60.rst









F:	drivers/hwmon/pmbus/stpddc60.c

















ST VL53L0X ToF RANGER(I2C) IIO DRIVER









M:	Song Qiang <songqiang1304521@gmail.com>









L:	linux-iio@vger.kernel.org
































drivers/hwmon/pmbus/Kconfig



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@@ -256,6 +256,16 @@ config SENSORS_Q54SJ108A2







	  This driver can also be built as a module. If so, the module will









	  be called q54sj108a2.



















config SENSORS_STPDDC60









	tristate "ST STPDDC60"









	help









	  If you say yes here you get hardware monitoring support for ST









	  STPDDC60 Universal Digital Multicell Controller, as well as for









	  Flex BMR481.



















	  This driver can also be built as a module. If so, the module will









	  be called stpddc60.



















config SENSORS_TPS40422









	tristate "TI TPS40422"









	help
































drivers/hwmon/pmbus/Makefile



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@@ -29,6 +29,7 @@ obj-$(CONFIG_SENSORS_MP2975)	+= mp2975.o







obj-$(CONFIG_SENSORS_PM6764TR)	+= pm6764tr.o









obj-$(CONFIG_SENSORS_PXE1610)	+= pxe1610.o









obj-$(CONFIG_SENSORS_Q54SJ108A2)	+= q54sj108a2.o









obj-$(CONFIG_SENSORS_STPDDC60)	+= stpddc60.o









obj-$(CONFIG_SENSORS_TPS40422)	+= tps40422.o









obj-$(CONFIG_SENSORS_TPS53679)	+= tps53679.o









obj-$(CONFIG_SENSORS_UCD9000)	+= ucd9000.o