RTC: M48T35: new RTC driver

This driver replaces the broken ip27-rtc driver in drivers/char and
gives back RTC support for SGI IP27 machines.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Acked-by: Alessandro Zummo <alessandro.zummo@towertech.it>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 2421700..f3d7fd3 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -410,6 +410,15 @@
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-m48t86.
 
+config RTC_DRV_M48T35
+	tristate "ST M48T35"
+	help
+	  If you say Y here you will get support for the
+	  ST M48T35 RTC chip.
+
+	  This driver can also be built as a module, if so, the module
+	  will be called "rtc-m48t35".
+
 config RTC_DRV_M48T59
 	tristate "ST M48T59/M48T08/M48T02"
 	help