powerpc/watchdog: Allow the Book-E driver to be compiled as a module
Register the __init and __exit functions in the PowerPC Book-E Watchdog
driver as module entry/exit functions, and modify the Kconfig entry.
Add a .release method for the PowerPC Book-E Watchdog driver, so that the
watchdog is disabled when the driver is closed.
Loosely based on original code from Jiang Yutang <b14898@freescale.com>.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 24efd8e..a6812eb 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -957,9 +957,12 @@
the Warp platform.
config BOOKE_WDT
- bool "PowerPC Book-E Watchdog Timer"
+ tristate "PowerPC Book-E Watchdog Timer"
depends on BOOKE || 4xx
---help---
+ Watchdog driver for PowerPC Book-E chips, such as the Freescale
+ MPC85xx SOCs and the IBM PowerPC 440.
+
Please see Documentation/watchdog/watchdog-api.txt for
more information.