diff options
| author | David Brownell <david-b@pacbell.net> | 2006-06-25 05:48:17 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-25 10:01:13 -0700 |
| commit | 1abb0dc92d706e8c73c7a62ca813738fe2259a7f (patch) | |
| tree | fb7d8d35431ba09db1c94f2211c56dad64c6687e /drivers/rtc/Kconfig | |
| parent | 3eecd1dc57971b2beff699b3704058866c25dedc (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/Kconfig | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index 875ff5e5792..9e249650baf 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 |