hwmon: Add driver for I2C chip Nuvoton NCT7363Y

The NCT7363Y is a fan controller which provides up to 16
independent FAN input monitors. It can report each FAN input count
values. The NCT7363Y also provides up to 16 independent PWM
outputs. Each PWM can output specific PWM signal by manual mode to
control the FAN duty outside.

Signed-off-by: Ban Feng <[email protected]>
Message-ID: <[email protected]>
[groeck: Dropped unnecessary variable initialization, and , after { }]
Signed-off-by: Guenter Roeck <[email protected]>

Author: KCFENG0

Documentation/hwmon/index.rst

@@ -175,6 +175,7 @@ Hardware Monitoring Kernel Drivers
    mpq8785
    nct6683
    nct6775
+   nct7363
    nct7802
    nct7904
    npcm750-pwm-fan

Documentation/hwmon/nct7363.rst

@@ -0,0 +1,35 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Kernel driver nct7363
+=====================
+
+Supported chip:
+
+  * Nuvoton NCT7363Y
+
+    Prefix: nct7363
+
+    Addresses: I2C 0x20, 0x21, 0x22, 0x23
+
+Author: Ban Feng <[email protected]>
+
+
+Description
+-----------
+
+The NCT7363Y is a fan controller which provides up to 16 independent
+FAN input monitors, and up to 16 independent PWM outputs with SMBus interface.
+
+
+Sysfs entries
+-------------
+
+Currently, the driver supports the following features:
+
+==========  ==========================================
+fanX_input  provide current fan rotation value in RPM
+fanX_alarm  report fan low speed real status
+fanX_min    get or set fan count threshold
+
+pwmX        get or set PWM fan control value.
+==========  ==========================================

MAINTAINERS

@@ -15955,6 +15955,8 @@ M:	Ban Feng <[email protected]>
 L:	[email protected]
 S:	Maintained
 F:	Documentation/devicetree/bindings/hwmon/nuvoton,nct7363.yaml
+F:	Documentation/hwmon/nct7363.rst
+F:	drivers/hwmon/nct7363.c
 
 NETCONSOLE
 M:	Breno Leitao <[email protected]>

drivers/hwmon/Kconfig

@@ -1681,6 +1681,17 @@ config SENSORS_NCT6775_I2C
 	  This driver can also be built as a module. If so, the module
 	  will be called nct6775-i2c.
 
+config SENSORS_NCT7363
+	tristate "Nuvoton NCT7363Y"
+	depends on I2C
+	select REGMAP_I2C
+	help
+	  If you say yes here you get support for the Nuvoton NCT7363Y
+	  hardware monitoring chip.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called nct7363.
+
 config SENSORS_NCT7802
 	tristate "Nuvoton NCT7802Y"
 	depends on I2C

drivers/hwmon/Makefile

@@ -172,6 +172,7 @@ obj-$(CONFIG_SENSORS_NCT6775_CORE) += nct6775-core.o
 nct6775-objs			:= nct6775-platform.o
 obj-$(CONFIG_SENSORS_NCT6775)	+= nct6775.o
 obj-$(CONFIG_SENSORS_NCT6775_I2C) += nct6775-i2c.o
+obj-$(CONFIG_SENSORS_NCT7363)	+= nct7363.o
 obj-$(CONFIG_SENSORS_NCT7802)	+= nct7802.o
 obj-$(CONFIG_SENSORS_NCT7904)	+= nct7904.o
 obj-$(CONFIG_SENSORS_NPCM7XX)	+= npcm750-pwm-fan.o