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authorDavid Brownell <david-b@pacbell.net>2006-06-25 05:48:17 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-25 10:01:13 -0700
commit1abb0dc92d706e8c73c7a62ca813738fe2259a7f (patch)
treefb7d8d35431ba09db1c94f2211c56dad64c6687e /drivers/rtc/Kconfig
parent3eecd1dc57971b2beff699b3704058866c25dedc (diff)
[PATCH] "RTC-framework" driver for DS1307 and similar RTC chips
This is an "RTC-framework" driver for DS1307 and similar RTC chips, It should be a full replacement for the existing ds1337.c driver (using the older RTC glue), giving a net increase in the number of RTC chips that work out-of-the-box. There's a whole cluster of RTCs that are very similar, but the 1337 driver was a bit too picky to work with most of them. Still no support for RTC alarm IRQs (on chips that support them). Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/rtc/Kconfig')
-rw-r--r--drivers/rtc/Kconfig18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 875ff5e5792a..9e249650baf0 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -86,6 +86,24 @@ config RTC_DRV_X1205
This driver can also be built as a module. If so, the module
will be called rtc-x1205.
+config RTC_DRV_DS1307
+ tristate "Dallas/Maxim DS1307 and similar I2C RTC chips"
+ depends on RTC_CLASS && I2C
+ 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).
+
+ The first seven registers on these chips hold an RTC, and other
+ registers may add features such as NVRAM, a trickle charger for
+ the RTC/NVRAM backup power, and alarms. This driver may not
+ expose all those available chip features.
+
+ This driver can also be built as a module. If so, the module
+ will be called rtc-ds1307.
+
config RTC_DRV_DS1672
tristate "Dallas/Maxim DS1672"
depends on RTC_CLASS && I2C