rtc: add platform driver for EFI

Munge Stephane Eranian's efirtc.c code into an rtc platform driver

[akpm@linux-foundation.org: use is_leap_year()]
Signed-off-by: dann frazier <dannf@hp.com>
Cc: Alessandro Zummo <alessandro.zummo@towertech.it>
Cc: stephane eranian <eranian@googlemail.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 81450fbd8b12..d669b9169278 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -440,6 +440,16 @@ config RTC_DRV_DS1742
           This driver can also be built as a module. If so, the module
           will be called rtc-ds1742.
 
+config RTC_DRV_EFI
+        tristate "EFI RTC"
+        depends on IA64
+        help
+          If you say yes here you will get support for the EFI
+          Real Time Clock.
+
+          This driver can also be built as a module. If so, the module
+          will be called rtc-efi.
+
 config RTC_DRV_STK17TA8
         tristate "Simtek STK17TA8"
         depends on RTC_CLASS