Commit 38b2b022 authored by Noah Wang's avatar Noah Wang Committed by Guenter Roeck
Browse files

hwmon: add MP2891 driver 



Add support for MPS VR controller mp2891. 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/SEYPR04MB64828A352836982C0184AA10FAD62@SEYPR04MB6482.apcprd04.prod.outlook.com


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 45158b93

Documentation/hwmon/index.rst

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@@ -165,6 +165,7 @@ Hardware Monitoring Kernel Drivers 
   mlxreg-fan

   mp2856

   mp2888

   mp2891

   mp2975

   mp2993

   mp5023

Documentation/hwmon/mp2891.rst

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.. SPDX-License-Identifier: GPL-2.0



Kernel driver mp2891

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



Supported chips:



  * MPS mp2891



    Prefix: 'mp2891'



  * Datasheet



    Publicly available at the MPS website : https://www.monolithicpower.com/en/mp2891.html



Author:



	Noah Wang <noahwang.wang@outlook.com>



Description

-----------



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

MP2891 Multi-phase Digital VR Controller.



Device compliant with:



- PMBus rev 1.3 interface.



Device supports direct and linear format for reading input voltage,

output voltage, input current, output current, input power, output

power, and temperature.



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

for input voltage:



**in1_input**



**in1_label**



**in1_crit**



**in1_crit_alarm**



**in1_lcrit**



**in1_lcrit_alarm**



**in1_min**



**in1_min_alarm**



The driver provides the following attributes for output voltage:



**in2_input**



**in2_label**



**in2_crit**



**in2_crit_alarm**



**in2_lcrit**



**in2_lcrit_alarm**



**in2_min**



**in2_min_alarm**



**in3_input**



**in3_label**



**in3_crit**



**in3_crit_alarm**



**in3_lcrit**



**in3_lcrit_alarm**



**in3_min**



**in3_min_alarm**



The driver provides the following attributes for input current:



**curr1_input**



**curr1_label**



**curr1_max**



**curr1_max_alarm**



**curr2_input**



**curr2_label**



**curr2_max**



**curr2_max_alarm**



The driver provides the following attributes for output current:



**curr3_input**



**curr3_label**



**curr3_crit**



**curr3_crit_alarm**



**curr3_max**



**curr3_max_alarm**



**curr4_input**



**curr4_label**



**curr4_crit**



**curr4_crit_alarm**



**curr4_max**



**curr4_max_alarm**



The driver provides the following attributes for input power:



**power1_input**



**power1_label**



**power1_max**



**power1_alarm**



**power2_input**



**power2_label**



**power2_max**



**power2_alarm**



The driver provides the following attributes for output power:



**power3_input**



**power3_label**



**power4_input**



**power4_label**



The driver provides the following attributes for temperature:



**temp1_input**



**temp1_crit**



**temp1_crit_alarm**



**temp1_max**



**temp1_max_alarm**



**temp2_input**



**temp2_crit**



**temp2_crit_alarm**



**temp2_max**



**temp2_max_alarm**

MAINTAINERS

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@@ -15258,6 +15258,13 @@ S: Maintained 
F:	Documentation/devicetree/bindings/leds/backlight/mps,mp3309c.yaml

F:	drivers/video/backlight/mp3309c.c









MPS MP2891 DRIVER









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









L:	linux-hwmon@vger.kernel.org









S:	Maintained









F:	Documentation/hwmon/mp2891.rst









F:	drivers/hwmon/pmbus/mp2891.c

















MPS MP2993 DRIVER









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









L:	linux-hwmon@vger.kernel.org
































drivers/hwmon/pmbus/Kconfig



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@@ -337,6 +337,15 @@ config SENSORS_MP2888







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









	  be called mp2888.



















config SENSORS_MP2891









    tristate "MPS MP2891"









    help









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









      MP2891 Dual Loop Digital Multi-Phase Controller.



















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









      be called mp2891.



















config SENSORS_MP2975









	tristate "MPS MP2975"









	help
































drivers/hwmon/pmbus/Makefile



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@@ -36,6 +36,7 @@ obj-$(CONFIG_SENSORS_MAX34440)	+= max34440.o







obj-$(CONFIG_SENSORS_MAX8688)	+= max8688.o









obj-$(CONFIG_SENSORS_MP2856)	+= mp2856.o









obj-$(CONFIG_SENSORS_MP2888)	+= mp2888.o









obj-$(CONFIG_SENSORS_MP2891)	+= mp2891.o









obj-$(CONFIG_SENSORS_MP2975)	+= mp2975.o









obj-$(CONFIG_SENSORS_MP2993)	+= mp2993.o









obj-$(CONFIG_SENSORS_MP5023)	+= mp5023.o