[src/trunk]: src/sys/arch/mac68k/mac68k Adjust GMT bias automatically by usin...

[rin <rin%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/3423c602d465
branches:  trunk
changeset: 453673:3423c602d465
user:      rin <rin%NetBSD.org@localhost>
date:      Thu Aug 22 12:47:57 2019 +0000

description:
Adjust GMT bias automatically by using data obtained from Mac OS,
unless RTC_OFFSET is set explicitly.

diffstat:

 sys/arch/mac68k/mac68k/clock.c |  12 ++++++++++--
 1 files changed, 10 insertions(+), 2 deletions(-)

diffs (33 lines):

diff -r db34a3470423 -r 3423c602d465 sys/arch/mac68k/mac68k/clock.c
--- a/sys/arch/mac68k/mac68k/clock.c    Thu Aug 22 09:16:08 2019 +0000
+++ b/sys/arch/mac68k/mac68k/clock.c    Thu Aug 22 12:47:57 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: clock.c,v 1.49 2011/02/08 20:20:18 rmind Exp $ */
+/*     $NetBSD: clock.c,v 1.50 2019/08/22 12:47:57 rin Exp $   */
 
 /*
  * Copyright (c) 1988 University of Utah.
@@ -75,7 +75,9 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: clock.c,v 1.49 2011/02/08 20:20:18 rmind Exp $");
+__KERNEL_RCSID(0, "$NetBSD: clock.c,v 1.50 2019/08/22 12:47:57 rin Exp $");
+
+#include "opt_rtc_offset.h"
 
 #include <sys/param.h>
 #include <sys/device.h>
@@ -391,6 +393,12 @@
                mac68k_trust_pram = 0;
        }
        tvp->tv_sec = timbuf;
+#if !defined(RTC_OFFSET) || RTC_OFFSET == 0
+       /*
+        * Adjust GTM bias unless RTC_OFFSET is set explicitly.
+        */
+       tvp->tv_sec -= macos_gmtbias * 60;
+#endif
        tvp->tv_usec = 0;
        return 0;
 }