watchdog: GPIO-controlled watchdog

This patch adds a watchdog driver for devices controlled through GPIO,
(Analog Devices ADM706, Maxim MAX823, National NE555 etc).

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index af8f7c75e03c..7a2fedab0fb5 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -87,6 +87,14 @@ config DA9055_WATCHDOG
           This driver can also be built as a module.  If so, the module
           will be called da9055_wdt.
 
+config GPIO_WATCHDOG
+        tristate "Watchdog device controlled through GPIO-line"
+        depends on OF_GPIO
+        select WATCHDOG_CORE
+        help
+          If you say yes here you get support for watchdog device
+          controlled through GPIO-line.
+
 config WM831X_WATCHDOG
         tristate "WM831x watchdog"
         depends on MFD_WM831X