rtc: add RTC class driver for the Maxim MAX6900

Signed-off-by: Dale Farnsworth.org <dale@farnsworth.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 372d749..1b853c4 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -334,6 +334,16 @@
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-test.
 
+config RTC_DRV_MAX6900
+	tristate "Maxim 6900"
+	depends on RTC_CLASS && I2C
+	help
+	  If you say yes here you will get support for the
+	  Maxim MAX6900 I2C RTC chip.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-max6900.
+
 config RTC_DRV_MAX6902
 	tristate "Maxim 6902"
 	depends on RTC_CLASS && SPI