Commit 43fbe66d authored by Andre Werner's avatar Andre Werner Committed by Guenter Roeck
Browse files

hwmon: Add driver for Renesas HS3001 



Add base support for Renesas HS3001 temperature
and humidity sensors and its compatibles HS3002,
HS3003 and HS3004.

The sensor has a fix I2C address 0x44. The resolution
is fixed to 14bit (ref. Missing feature).

Missing feature:
- Accessing non-volatile memory: Custom board has no
  possibility to control voltage supply of sensor. Thus,
  we cannot send the necessary control commands within
  the first 10ms after power-on.

Signed-off-by: default avatarAndre Werner <andre.werner@systec-electronic.com>
Link: https://lore.kernel.org/r/20230725042207.22310-2-andre.werner@systec-electronic.com


[groeck: Cosmetic documentation fixup; added documentation to index;
 replaced probe_new with probe dropped unused variable]
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 6ae8867a

Documentation/hwmon/hs3001.rst

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.. SPDX-License-Identifier: GPL-2.0-or-later



Kernel driver HS3001

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



Supported chips:



  * Renesas HS3001, HS3002, HS3003, HS3004



    Prefix: 'hs3001'



    Addresses scanned: -



    Datasheet: https://www.renesas.com/us/en/document/dst/hs300x-datasheet?r=417401



Author:



  - Andre Werner <andre.werner@systec-electronic.com>



Description

-----------



This driver implements support for the Renesas HS3001 chips, a humidity

and temperature family. Temperature is measured in degrees celsius, relative

humidity is expressed as a percentage. In the sysfs interface, all values are

scaled by 1000, i.e. the value for 31.5 degrees celsius is 31500.



The device communicates with the I2C protocol. Sensors have the I2C

address 0x44 by default.



sysfs-Interface

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



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

temp1_input:        temperature input

humidity1_input:    humidity input

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

Documentation/hwmon/index.rst

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@@ -78,6 +78,7 @@ Hardware Monitoring Kernel Drivers 
   gxp-fan-ctrl

   gxp-fan-ctrl

   hih6130

   hih6130

   hp-wmi-sensors

   hp-wmi-sensors

   hs3001

   ibmaem

   ibmaem

   ibm-cffps

   ibm-cffps

   ibmpowernv

   ibmpowernv

MAINTAINERS

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@@ -9497,6 +9497,12 @@ S: Maintained 
W:	http://artax.karlin.mff.cuni.cz/~mikulas/vyplody/hpfs/index-e.cgi

W:	http://artax.karlin.mff.cuni.cz/~mikulas/vyplody/hpfs/index-e.cgi

F:	fs/hpfs/

F:	fs/hpfs/













HS3001 Hardware Temperature and Humidity Sensor










M:	Andre Werner <andre.werner@systec-electronic.com>










L:	linux-hwmon@vger.kernel.org










S:	Maintained










F:	drivers/hwmon/hs3001.c

















HSI SUBSYSTEM




HSI SUBSYSTEM








M:	Sebastian Reichel <sre@kernel.org>




M:	Sebastian Reichel <sre@kernel.org>








S:	Maintained




S:	Maintained
































drivers/hwmon/Kconfig



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−0






























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@@ -734,6 +734,16 @@ config SENSORS_HIH6130






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




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








	  will be called hih6130.




	  will be called hih6130.
























config SENSORS_HS3001










	tristate "Renesas HS3001 humidity and temperature sensors"










	depends on I2C










	help










	  If you say yes here you get support for the Renesas HS3001,










	  to HS3004 humidity and temperature sensors.





















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










	  will be called hs3001.



















config SENSORS_IBMAEM




config SENSORS_IBMAEM








	tristate "IBM Active Energy Manager temperature/power sensors and control"




	tristate "IBM Active Energy Manager temperature/power sensors and control"








	select IPMI_SI




	select IPMI_SI
































drivers/hwmon/Makefile



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@@ -86,6 +86,7 @@ obj-$(CONFIG_SENSORS_GSC)	+= gsc-hwmon.o






obj-$(CONFIG_SENSORS_GPIO_FAN)	+= gpio-fan.o




obj-$(CONFIG_SENSORS_GPIO_FAN)	+= gpio-fan.o








obj-$(CONFIG_SENSORS_GXP_FAN_CTRL) += gxp-fan-ctrl.o




obj-$(CONFIG_SENSORS_GXP_FAN_CTRL) += gxp-fan-ctrl.o








obj-$(CONFIG_SENSORS_HIH6130)	+= hih6130.o




obj-$(CONFIG_SENSORS_HIH6130)	+= hih6130.o










obj-$(CONFIG_SENSORS_HS3001)	+= hs3001.o








obj-$(CONFIG_SENSORS_ULTRA45)	+= ultra45_env.o




obj-$(CONFIG_SENSORS_ULTRA45)	+= ultra45_env.o








obj-$(CONFIG_SENSORS_I5500)	+= i5500_temp.o




obj-$(CONFIG_SENSORS_I5500)	+= i5500_temp.o








obj-$(CONFIG_SENSORS_I5K_AMB)	+= i5k_amb.o




obj-$(CONFIG_SENSORS_I5K_AMB)	+= i5k_amb.o