Commit 2b9ea426 authored by Antoniu Miclaus's avatar Antoniu Miclaus Committed by Guenter Roeck
Browse files

hwmon: Add driver for ltc2991 



Add support for LTC2991 Octal I2C Voltage, Current, and Temperature
Monitor.

The LTC2991 is used to monitor system temperatures, voltages and
currents. Through the I2C serial interface, the eight monitors can
individually measure supply voltages and can be paired for
differential measurements of current sense resistors or temperature
sensing transistors. Additional measurements include internal
temperature and internal VCC.

Signed-off-by: default avatarAntoniu Miclaus <antoniu.miclaus@analog.com>
Link: https://lore.kernel.org/r/20231026103413.27800-2-antoniu.miclaus@analog.com


[groeck: Fixed up documentation warning]
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 4bac088e

Documentation/hwmon/index.rst

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@@ -121,6 +121,7 @@ Hardware Monitoring Kernel Drivers 
   ltc2947

   ltc2978

   ltc2990

   ltc2991

   ltc3815

   ltc4151

   ltc4215

Documentation/hwmon/ltc2991.rst

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.. SPDX-License-Identifier: GPL-2.0



Kernel driver ltc2991

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



Supported chips:



  * Analog Devices LTC2991



    Prefix: 'ltc2991'



    Addresses scanned: I2C 0x48 - 0x4f



    Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/2991ff.pdf



Authors:



  - Antoniu Miclaus <antoniu.miclaus@analog.com>





Description

-----------



This driver supports hardware monitoring for Analog Devices LTC2991 Octal I2C

Voltage, Current and Temperature Monitor.



The LTC2991 is used to monitor system temperatures, voltages and currents.

Through the I2C serial interface, the eight monitors can individually measure

supply voltages and can be paired for differential measurements of current sense

resistors or temperature sensing transistors. Additional measurements include

internal temperatureand internal VCC.





sysfs-Interface

---------------



The following attributes are supported. Limits are read-only.



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

inX_input:      voltage input

currX_input:    current input

tempX_input:    temperature input

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

MAINTAINERS

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@@ -12458,6 +12458,14 @@ F: drivers/hwmon/ltc2947-i2c.c 
F:	drivers/hwmon/ltc2947-spi.c

F:	drivers/hwmon/ltc2947.h









LTC2991 HARDWARE MONITOR DRIVER









M:	Antoniu Miclaus <antoniu.miclaus@analog.com>









L:	linux-hwmon@vger.kernel.org









S:	Supported









W:	https://ez.analog.com/linux-software-drivers









F:	Documentation/devicetree/bindings/hwmon/adi,ltc2991.yaml









F:	drivers/hwmon/ltc2991.c

















LTC2983 IIO TEMPERATURE DRIVER









M:	Nuno Sá <nuno.sa@analog.com>









L:	linux-iio@vger.kernel.org
































drivers/hwmon/Kconfig



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@@ -942,6 +942,17 @@ config SENSORS_LTC2990







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









	  be called ltc2990.



















config SENSORS_LTC2991









	tristate "Analog Devices LTC2991"









	depends on I2C









	help









	  If you say yes here you get support for Analog Devices LTC2991









	  Octal I2C Voltage, Current, and Temperature Monitor. The LTC2991









	  supports a combination of voltage, current and temperature monitoring.



















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









	  be called ltc2991.



















config SENSORS_LTC2992









	tristate "Linear Technology LTC2992"









	depends on I2C
































drivers/hwmon/Makefile



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@@ -127,6 +127,7 @@ obj-$(CONFIG_SENSORS_LTC2947)	+= ltc2947-core.o







obj-$(CONFIG_SENSORS_LTC2947_I2C) += ltc2947-i2c.o









obj-$(CONFIG_SENSORS_LTC2947_SPI) += ltc2947-spi.o









obj-$(CONFIG_SENSORS_LTC2990)	+= ltc2990.o









obj-$(CONFIG_SENSORS_LTC2991)	+= ltc2991.o









obj-$(CONFIG_SENSORS_LTC2992)	+= ltc2992.o









obj-$(CONFIG_SENSORS_LTC4151)	+= ltc4151.o









obj-$(CONFIG_SENSORS_LTC4215)	+= ltc4215.o