Add function for attaching RTC drivers, to reduce direct use

of todr_handle.

OK kettenis@

2 files changed, 9 insertions, 2 deletions

diff --git a/sys/dev/clock_subr.h b/sys/dev/clock_subr.h
index fb473b581b1..3d4c4544b44 100644
--- a/sys/dev/clock_subr.h
+++ b/sys/dev/clock_subr.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: clock_subr.h,v 1.5 2008/06/26 05:42:14 ray Exp $	*/
+/*	$OpenBSD: clock_subr.h,v 1.6 2020/05/17 13:21:20 visa Exp $	*/
 /*	$NetBSD: clock_subr.h,v 1.2 1997/03/15 18:11:17 is Exp $	*/
 
 /*-
@@ -62,3 +62,4 @@ typedef struct todr_chip_handle *todr_chip_handle_t;
 #define todr_wenable(ct, v)	if ((ct)->todr_setwen) \
 					((*(ct)->todr_setwen)(ct, v))
 
+void	todr_attach(struct todr_chip_handle *);
diff --git a/sys/kern/kern_time.c b/sys/kern/kern_time.c
index f0da7838aa2..3e5c753c3b3 100644
--- a/sys/kern/kern_time.c
+++ b/sys/kern/kern_time.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: kern_time.c,v 1.128 2020/05/16 14:44:45 kettenis Exp $	*/
+/*	$OpenBSD: kern_time.c,v 1.129 2020/05/17 13:21:21 visa Exp $	*/
 /*	$NetBSD: kern_time.c,v 1.20 1996/02/18 11:57:06 fvdl Exp $	*/
 
 /*
@@ -869,6 +869,12 @@ resettodr(void)
 		printf("WARNING: can't update clock chip time\n");
 }
 
+void
+todr_attach(struct todr_chip_handle *todr)
+{
+	todr_handle = todr;
+}
+
 #define RESETTODR_PERIOD	1800
 
 void periodic_resettodr(void *);