hwmon: add generic GPIO fan driver

This patch adds hwmon support for fans connected to GPIO lines.

Platform specific information such as GPIO pinout and speed conversion array
(rpm from/to GPIO value) are passed to the driver via platform_data.

Signed-off-by: Simon Guinot <sguinot@lacie.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index ec4295fd22f6..c357c835eb1e 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -399,6 +399,15 @@ config SENSORS_GL520SM
           This driver can also be built as a module.  If so, the module
           will be called gl520sm.
 
+config SENSORS_GPIO_FAN
+        tristate "GPIO fan"
+        depends on GENERIC_GPIO
+        help
+          If you say yes here you get support for fans connected to GPIO lines.
+
+          This driver can also be built as a module.  If so, the module
+          will be called gpio-fan.
+
 config SENSORS_CORETEMP
         tristate "Intel Core/Core2/Atom temperature sensor"
         depends on X86 && PCI && EXPERIMENTAL