rtc: add EPSON RX8025 support to DS1307 RTC driver

Add support for the EPSON RX8025 RTC.  The date/time registers of this
chip are compatible with the DS1307.

Signed-off-by: Matthias Fuchs <matthias.fuchs@esd-electronics.com>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
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, 4 insertions, 3 deletions

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index d669b9169278..09d5cd33a3f6 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -129,13 +129,14 @@ comment "I2C RTC drivers"
 if I2C
 
 config RTC_DRV_DS1307
-        tristate "Dallas/Maxim DS1307/37/38/39/40, ST M41T00"
+        tristate "Dallas/Maxim DS1307/37/38/39/40, ST M41T00, EPSON RX-8025"
         help
           If you say yes here you get support for various compatible RTC
           chips (often with battery backup) connected with I2C. This driver
           should handle DS1307, DS1337, DS1338, DS1339, DS1340, ST M41T00,
-          and probably other chips. In some cases the RTC must already
-          have been initialized (by manufacturing or a bootloader).
+          EPSON RX-8025 and probably other chips. In some cases the RTC
+          must already have been initialized (by manufacturing or a
+          bootloader).
 
           The first seven registers on these chips hold an RTC, and other
           registers may add features such as NVRAM, a trickle charger for