rtc: driver for pxa27x and pxa3xx SoC

[pandora-kernel.git] / drivers / rtc / Kconfig

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 123092d..74bd616 100644 (file)
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -102,9 +102,13 @@ config RTC_INTF_DEV_UIE_EMUL
        depends on RTC_INTF_DEV
        help
          Provides an emulation for RTC_UIE if the underlying rtc chip
-         driver does not expose RTC_UIE ioctls.  Those requests generate
+         driver does not expose RTC_UIE ioctls. Those requests generate
          once-per-second update interrupts, used for synchronization.
 
+         The emulation code will read the time from the hardware
+         clock several times per second, please enable this option
+         only if you know that you really need it.
+
 config RTC_DRV_TEST
        tristate "Test driver/device"
        help
@@ -665,6 +669,17 @@ config RTC_DRV_PPC
         the RTC. This exposes that functionality through the generic RTC
         class.
 
+config RTC_DRV_PXA
+       tristate "PXA27x/PXA3xx"
+       depends on ARCH_PXA
+       help
+         If you say Y here you will get access to the real time clock
+         built into your PXA27x or PXA3xx CPU.
+
+         This RTC driver uses PXA RTC registers available since pxa27x
+         series (RDxR, RYxR) instead of legacy RCNR, RTAR.
+
+
 config RTC_DRV_SUN4V
        bool "SUN4V Hypervisor RTC"
        depends on SPARC64