Commit f1fd4a4d authored by Tomer Maimon's avatar Tomer Maimon Committed by Guenter Roeck
Browse files

hwmon: Add NPCM7xx PWM and Fan driver 



Add Nuvoton BMC NPCM750/730/715/705 Pulse Width Modulation (PWM)
and Fan tacho driver.

The Nuvoton BMC NPCM750/730/715/705 supports 8 PWM controller outputs
and 16 Fan controller inputs.

The driver provides a sysfs entries through which the user can
configure the duty-cycle value from 0(off) and 255(full speed)
and read the fan tacho rpm value.

Signed-off-by: default avatarTomer Maimon <tmaimon77@gmail.com>
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 68dde6ca

Documentation/hwmon/npcm750-pwm-fan

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Kernel driver npcm750-pwm-fan

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



Supported chips:

	NUVOTON NPCM750/730/715/705



Authors:

	<tomer.maimon@nuvoton.com>



Description:

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

This driver implements support for NUVOTON NPCM7XX PWM and Fan Tacho

controller. The PWM controller supports up to 8 PWM outputs. The Fan tacho

controller supports up to 16 tachometer inputs.



The driver provides the following sensor accesses in sysfs:



fanX_input	ro	provide current fan rotation value in RPM as reported

			by the fan to the device.



pwmX		rw	get or set PWM fan control value. This is an integer

			value between 0(off) and 255(full speed).

drivers/hwmon/Kconfig

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@@ -1268,6 +1268,16 @@ config SENSORS_NCT7904 
	  This driver can also be built as a module.  If so, the module

	  will be called nct7904.



config SENSORS_NPCM7XX

	tristate "Nuvoton NPCM750 and compatible PWM and Fan controllers"

	imply THERMAL

	help

	  This driver provides support for Nuvoton NPCM750/730/715/705 PWM

          and Fan controllers.



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

          will be called npcm750-pwm-fan.



config SENSORS_NSA320

	tristate "ZyXEL NSA320 and compatible fan speed and temperature sensors"

	depends on GPIOLIB && OF

drivers/hwmon/Makefile

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@@ -135,6 +135,7 @@ obj-$(CONFIG_SENSORS_NCT6683) += nct6683.o 
obj-$(CONFIG_SENSORS_NCT6775)	+= nct6775.o

obj-$(CONFIG_SENSORS_NCT7802)	+= nct7802.o

obj-$(CONFIG_SENSORS_NCT7904)	+= nct7904.o

obj-$(CONFIG_SENSORS_NPCM7XX)	+= npcm750-pwm-fan.o

obj-$(CONFIG_SENSORS_NSA320)	+= nsa320-hwmon.o

obj-$(CONFIG_SENSORS_NTC_THERMISTOR)	+= ntc_thermistor.o

obj-$(CONFIG_SENSORS_PC87360)	+= pc87360.o

drivers/hwmon/npcm750-pwm-fan.c

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