]> nv-tegra.nvidia Code Review - linux-3.10.git/blobdiff - include/linux/mc146818rtc.h
rtc: fall back to requesting only the ports we actually use
[linux-3.10.git] / include / linux / mc146818rtc.h
index 580b3f4956ee260b551850d157f1f1b3992a5429..2f4e957af6568990944e0656546fcdba9a8faf3a 100644 (file)
@@ -109,8 +109,11 @@ struct cmos_rtc_board_info {
 #ifndef ARCH_RTC_LOCATION      /* Override by <asm/mc146818rtc.h>? */
 
 #define RTC_IO_EXTENT  0x8
+#define RTC_IO_EXTENT_USED     0x2
 #define RTC_IOMAPPED   1       /* Default to I/O mapping. */
 
+#else
+#define RTC_IO_EXTENT_USED      RTC_IO_EXTENT
 #endif /* ARCH_RTC_LOCATION */
 
 #endif /* _MC146818RTC_H */