Commit dc5abc2f authored by Noah Wang's avatar Noah Wang Committed by Guenter Roeck
Browse files

hwmon: add MP9941 driver 



Add support for MPS step-down converter mp9941. This driver exposes
telemetry and limit value readings and writtings.

Signed-off-by: default avatarNoah Wang <noahwang.wang@outlook.com>
Link: https://lore.kernel.org/r/SEYPR04MB648294005D55F70736B519F6FAC72@SEYPR04MB6482.apcprd04.prod.outlook.com


[groeck: Include bitfield.h (for FIELD_PREP) and bits.h (for GENMASK)]
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 512554f6

Documentation/hwmon/index.rst

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@@ -169,6 +169,7 @@ Hardware Monitoring Kernel Drivers 
   mp2993

   mp5023

   mp5990

   mp9941

   mpq8785

   nct6683

   nct6775

Documentation/hwmon/mp9941.rst

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.. SPDX-License-Identifier: GPL-2.0



Kernel driver mp9941

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



Supported chips:



  * MPS mp9941



    Prefix: 'mp9941'



  * Datasheet

    https://scnbwymvp-my.sharepoint.com/:f:/g/personal/admin_scnbwy_com/Eth4kX1_J1hMsaASHiOYL4QBHU5a75r-tRfLKbHnJFdKLQ?e=vxj3DF



Author:



	Noah Wang <noahwang.wang@outlook.com>



Description

-----------



This driver implements support for Monolithic Power Systems, Inc. (MPS)

MP9941 digital step-down converter.



Device compliant with:



- PMBus rev 1.3 interface.



The driver exports the following attributes via the 'sysfs' files

for input voltage:



**in1_input**



**in1_label**



**in1_crit**



**in1_crit_alarm**



The driver provides the following attributes for output voltage:



**in2_input**



**in2_label**



**in2_lcrit**



**in2_lcrit_alarm**



**in2_rated_max**



**in2_rated_min**



The driver provides the following attributes for input current:



**curr1_input**



**curr1_label**



**curr1_max**



**curr1_max_alarm**



The driver provides the following attributes for output current:



**curr2_input**



**curr2_label**



The driver provides the following attributes for input power:



**power1_input**



**power1_label**



The driver provides the following attributes for output power:



**power2_input**



**power2_label**



The driver provides the following attributes for temperature:



**temp1_input**



**temp1_crit**



**temp1_crit_alarm**



**temp1_max**



**temp1_max_alarm**

MAINTAINERS

+7 −0
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@@ -15265,6 +15265,13 @@ S: Maintained 
F:	Documentation/hwmon/mp2993.rst

F:	drivers/hwmon/pmbus/mp2993.c









MPS MP9941 DRIVER









M:	Noah Wang <noahwang.wang@outlook.com>









L:	linux-hwmon@vger.kernel.org









S:	Maintained









F:	Documentation/hwmon/mp9941.rst









F:	drivers/hwmon/pmbus/mp9941.c

















MR800 AVERMEDIA USB FM RADIO DRIVER









M:	Alexey Klimov <klimov.linux@gmail.com>









L:	linux-media@vger.kernel.org
































drivers/hwmon/pmbus/Kconfig



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@@ -380,6 +380,15 @@ config SENSORS_MP5990







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









	  be called mp5990.



















config SENSORS_MP9941









	tristate "MPS MP9941"









	help









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









	  MP9941.



















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









	  be called mp9941.



















config SENSORS_MPQ7932_REGULATOR









	bool "Regulator support for MPQ7932"









	depends on SENSORS_MPQ7932 && REGULATOR
































drivers/hwmon/pmbus/Makefile



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@@ -40,6 +40,7 @@ obj-$(CONFIG_SENSORS_MP2975)	+= mp2975.o







obj-$(CONFIG_SENSORS_MP2993)	+= mp2993.o









obj-$(CONFIG_SENSORS_MP5023)	+= mp5023.o









obj-$(CONFIG_SENSORS_MP5990)	+= mp5990.o









obj-$(CONFIG_SENSORS_MP9941)	+= mp9941.o









obj-$(CONFIG_SENSORS_MPQ7932)	+= mpq7932.o









obj-$(CONFIG_SENSORS_MPQ8785)	+= mpq8785.o









obj-$(CONFIG_SENSORS_PLI1209BC)	+= pli1209bc.o