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: Tomer Maimon <tmaimon77@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index fd7fb6c041c2..ccf42663a908 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -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