rtc: add driver for BQ32000 I2C RTC

This patch adds basic support for Texas Instruments BQ32000 I2C RTC.  Only
time reading/writing is implemented.  Advanced features, such as trickle
charger and crystal calibration are not supported.

Signed-off-by: Piotr Ziecik <kosmo@semihalf.com>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 9930d79fa51f..40c168bf6984 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -242,6 +242,15 @@ config RTC_DRV_M41T80_WDT
           If you say Y here you will get support for the
           watchdog timer in the ST M41T60 and M41T80 RTC chips series.
 
+config RTC_DRV_BQ32K
+        tristate "TI BQ32000"
+        help
+          If you say Y here you will get support for the TI
+          BQ32000 I2C RTC chip.
+
+          This driver can also be built as a module. If so, the module
+          will be called rtc-bq32k.
+
 config RTC_DRV_DM355EVM
         tristate "TI DaVinci DM355 EVM RTC"
         depends on MFD_DM355EVM_MSP