ssb/bcma: add common header for watchdog

This adds a common header for watchdog functions, so a watchdog driver
just needs to use this and could provide watchdog functionality for ssb
and bcma based SoCs. Patches for a watchdog driver using this interface
will be send later.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/include/linux/bcm47xx_wdt.h b/include/linux/bcm47xx_wdt.h
new file mode 100644 (file)
index 0000000..e5dfc25
--- /dev/null
+++ b/include/linux/bcm47xx_wdt.h
@@ -0,0 +1,19 @@
+#ifndef LINUX_BCM47XX_WDT_H_
+#define LINUX_BCM47XX_WDT_H_
+
+#include <linux/types.h>
+
+
+struct bcm47xx_wdt {
+       u32 (*timer_set)(struct bcm47xx_wdt *, u32);
+       u32 (*timer_set_ms)(struct bcm47xx_wdt *, u32);
+       u32 max_timer_ms;
+
+       void *driver_data;
+};
+
+static inline void *bcm47xx_wdt_get_drvdata(struct bcm47xx_wdt *wdt)
+{
+       return wdt->driver_data;
+}
+#endif /* LINUX_BCM47XX_WDT_H_ */