rtc: Philips PCF2123 RTC SPI driver

Add support for the Philips/NXP PCF2123 RTC.

Signed-off: Chris Verges <chrisv@cyberswitching.com>
Tested-by: Chris Verges <chrisv@cyberswitching.com>
Signed-off: Christian Pellegrin <chripell@fsfe.org>
Tested-by: Christian Pellegrin <chripell@fsfe.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
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 73771b09fbd3..2ccd351c52ed 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -378,6 +378,15 @@ config RTC_DRV_DS3234
           This driver can also be built as a module. If so, the module
           will be called rtc-ds3234.
 
+config RTC_DRV_PCF2123
+        tristate "NXP PCF2123"
+        help
+          If you say yes here you get support for the NXP PCF2123
+          RTC chip.
+
+          This driver can also be built as a module. If so, the module
+          will be called rtc-pcf2123.
+
 endif # SPI_MASTER
 
 comment "Platform RTC drivers"