ARM: meson: add watchdog driver

This patch adds the watchdog driver for the Amlogic Meson SoCs used also
to reboot the device.

Signed-off-by: Carlo Caione <carlo@caione.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index a51ccf3..9ff8588 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -494,6 +494,16 @@
 	  To compile this driver as a module, choose M here: the
 	  module will be called qcom_wdt.
 
+config MESON_WATCHDOG
+	tristate "Amlogic Meson SoCs watchdog support"
+	depends on ARCH_MESON
+	select WATCHDOG_CORE
+	help
+	  Say Y here to include support for the watchdog timer
+	  in Amlogic Meson SoCs.
+	  To compile this driver as a module, choose M here: the
+	  module will be called meson_wdt.
+
 # AVR32 Architecture
 
 config AT32AP700X_WDT