rtc: add rtc-abx80x, a driver for the Abracon AB x80x i2c rtc
This is a basic driver for the ultra-low-power Abracon AB x80x series of RTC
chips. It supports in particular, the supersets AB0805 and AB1805.
It allows reading and writing the time, and enables the supercapacitor/
battery charger.
[arnd@arndb.de: abx805 depends on i2c]
[alexandre.belloni@free-electrons.com: renam buffer from date to buf in abx80x_rtc_read_time()]
Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Paul Bolle <pebolle@tiscali.nl>
Cc: Arnd Bergmann <arnd@arndb.de>
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 6149ae0..0fe4ad8 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -164,6 +164,16 @@
This driver can also be built as a module. If so, the module
will be called rtc-ab-b5ze-s3.
+config RTC_DRV_ABX80X
+ tristate "Abracon ABx80x"
+ help
+ If you say yes here you get support for Abracon AB080X and AB180X
+ families of ultra-low-power battery- and capacitor-backed real-time
+ clock chips.
+
+ This driver can also be built as a module. If so, the module
+ will be called rtc-abx80x.
+
config RTC_DRV_AS3722
tristate "ams AS3722 RTC driver"
depends on MFD_AS3722