rtc: add support for Epson RTC-9701JE V2

Add support for the Epson RTC-9701JE SPI RTC device.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Acked-by: David Brownell <david-b@pacbell.net>
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 4a39b76..484de8e 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -265,6 +265,15 @@
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-max6902.
 
+config RTC_DRV_R9701
+	tristate "Epson RTC-9701JE"
+	help
+	  If you say yes here you will get support for the
+	  Epson RTC-9701JE SPI RTC chip.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-r9701.
+
 config RTC_DRV_RS5C348
 	tristate "Ricoh RS5C348A/B"
 	help