help
The RTC device that will be used to (re)initialize the system
clock, usually rtc0. Initialization is done when the system
- starts up, and when it resumes from a low power state.
+ starts up, and when it resumes from a low power state. This
+ device should record time in UTC, since the kernel won't do
+ timezone correction.
The driver for this RTC device must be loaded before late_initcall
functions run, so it must usually be statically linked.
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.
+ the RTC/NVRAM backup power, and alarms. NVRAM is visible in
+ sysfs, but other chip features may not be available.
This driver can also be built as a module. If so, the module
will be called rtc-ds1307.
+config RTC_DRV_DS1374
+ tristate "Maxim/Dallas Semiconductor DS1374 Real Time Clock"
+ depends on RTC_CLASS && I2C
+ help
+ If you say yes here you get support for Dallas Semiconductor
+ DS1374 real-time clock chips. If an interrupt is associated
+ with the device, the alarm functionality is supported.
+
+ This driver can also be built as a module. If so, the module
+ will be called rtc-ds1374.
+
config RTC_DRV_DS1672
tristate "Dallas/Maxim DS1672"
help
depends on MENELAUS
help
If you say yes here you get support for the RTC on the
- TWL92330 "Menelaus" power mangement chip, used with OMAP2
+ TWL92330 "Menelaus" power management chip, used with OMAP2
platforms. The support is integrated with the rest of
the Menelaus driver; it's not separate module.
config RTC_DRV_BFIN
tristate "Blackfin On-Chip RTC"
- depends on BFIN
+ depends on BLACKFIN
help
If you say yes here you will get support for the
Blackfin On-Chip Real Time Clock.