hwmon: (sch56xx) Add support for the integrated watchdog (v2)

Add support for the watchdog integrated into the SMSC SCH5627 and
SCH5636 superio-s. Since the watchdog is part of the hwmon logical device
and thus shares ioports with it, the watchdog driver is integrated into the
existing hwmon drivers for these.

Note that this version of the watchdog support for sch56xx superio-s
implements the watchdog chardev interface itself, rather then relying on
the recently added watchdog core / watchdog_dev. This is done because
currently some needed functionality is missing from watchdog_dev, as soon
as this functionality is added (which is being discussed on the
linux-watchdog mailinglist), I'll convert this driver over to using
watchdog_dev.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
[guenter.roeck@ericsson.com: Added missing linux/slab.h include]
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 1cd0e201819c..811e6c47e7e6 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -1028,7 +1028,8 @@ config SENSORS_SCH5627
         select SENSORS_SCH56XX_COMMON
         help
           If you say yes here you get support for the hardware monitoring
-          features of the SMSC SCH5627 Super-I/O chip.
+          features of the SMSC SCH5627 Super-I/O chip including support for
+          the integrated watchdog.
 
           This driver can also be built as a module.  If so, the module
           will be called sch5627.
@@ -1044,7 +1045,8 @@ config SENSORS_SCH5636
 
           Currently this driver only supports the Fujitsu Theseus SCH5636 based
           hwmon solution. Say yes here if you want support for the Fujitsu
-          Theseus' hardware monitoring features.
+          Theseus' hardware monitoring features including support for the
+          integrated watchdog.
 
           This driver can also be built as a module.  If so, the module
           will be called sch5636.