watchdog: s3c2410_wdt - Add extra option to include watchdog for Samsung SoCs

This patch adds HAVE_S3C2410_WATCHDOG to control inclusion of watchdog driver
for Samsung SoCs. This option will help to include the driver only for the
necessary machines and not for all for any given arch.

Signed-off-by: Banajit Goswami <banajit.g@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index b87ba23..c57ecff 100644 (file)
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -145,13 +145,19 @@ config KS8695_WATCHDOG
          Watchdog timer embedded into KS8695 processor. This will reboot your
          system when the timeout is reached.
 
+config HAVE_S3C2410_WATCHDOG
+       bool
+       help
+         This will include watchdog timer support for Samsung SoCs. If
+         you want to include watchdog support for any machine, kindly
+         select this in the respective mach-XXXX/Kconfig file.
+
 config S3C2410_WATCHDOG
        tristate "S3C2410 Watchdog"
-       depends on ARCH_S3C2410
+       depends on ARCH_S3C2410 || HAVE_S3C2410_WATCHDOG
        help
-         Watchdog timer block in the Samsung S3C2410 chips. This will
-         reboot the system when the timer expires with the watchdog
-         enabled.
+         Watchdog timer block in the Samsung SoCs. This will reboot
+         the system when the timer expires with the watchdog enabled.
 
          The driver is limited by the speed of the system's PCLK
          signal, so with reasonably fast systems (PCLK around 50-66MHz)