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-rw-r--r--drivers/rtc/rtc-core.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/rtc/rtc-core.h b/drivers/rtc/rtc-core.h
index c3c495ed1869..c9891423a468 100644
--- a/drivers/rtc/rtc-core.h
+++ b/drivers/rtc/rtc-core.h
@@ -1,3 +1,5 @@
+extern int rtc_interface_register(struct class_interface *intf);
+
#ifdef CONFIG_RTC_INTF_DEV
extern void __init rtc_dev_init(void);