summaryrefslogtreecommitdiff
path: root/arch/x86/kernel/rtc.c
diff options
context:
space:
mode:
authorIngo Molnar <mingo@elte.hu>2009-04-06 09:02:57 +0200
committerIngo Molnar <mingo@elte.hu>2009-04-06 09:02:57 +0200
commitf541ae326fa120fa5c57433e4d9a133df212ce41 (patch)
treebdbd94ec72cfc601118051cb35e8617d55510177 /arch/x86/kernel/rtc.c
parente255357764f92afcafafbd4879b222b8c752065a (diff)
parent0221c81b1b8eb0cbb6b30a0ced52ead32d2b4e4c (diff)
Merge branch 'linus' into perfcounters/core-v2
Merge reason: we have gathered quite a few conflicts, need to merge upstream Conflicts: arch/powerpc/kernel/Makefile arch/x86/ia32/ia32entry.S arch/x86/include/asm/hardirq.h arch/x86/include/asm/unistd_32.h arch/x86/include/asm/unistd_64.h arch/x86/kernel/cpu/common.c arch/x86/kernel/irq.c arch/x86/kernel/syscall_table_32.S arch/x86/mm/iomap_32.c include/linux/sched.h kernel/Makefile Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/rtc.c')
-rw-r--r--arch/x86/kernel/rtc.c20
1 files changed, 11 insertions, 9 deletions
diff --git a/arch/x86/kernel/rtc.c b/arch/x86/kernel/rtc.c
index dd6f2b71561b..5d465b207e72 100644
--- a/arch/x86/kernel/rtc.c
+++ b/arch/x86/kernel/rtc.c
@@ -1,14 +1,14 @@
/*
* RTC related functions
*/
+#include <linux/platform_device.h>
+#include <linux/mc146818rtc.h>
#include <linux/acpi.h>
#include <linux/bcd.h>
-#include <linux/mc146818rtc.h>
-#include <linux/platform_device.h>
#include <linux/pnp.h>
-#include <asm/time.h>
#include <asm/vsyscall.h>
+#include <asm/time.h>
#ifdef CONFIG_X86_32
/*
@@ -16,9 +16,9 @@
* register we are working with. It is required for NMI access to the
* CMOS/RTC registers. See include/asm-i386/mc146818rtc.h for details.
*/
-volatile unsigned long cmos_lock = 0;
+volatile unsigned long cmos_lock;
EXPORT_SYMBOL(cmos_lock);
-#endif
+#endif /* CONFIG_X86_32 */
/* For two digit years assume time is always after that */
#define CMOS_YEARS_OFFS 2000
@@ -38,9 +38,9 @@ EXPORT_SYMBOL(rtc_lock);
*/
int mach_set_rtc_mmss(unsigned long nowtime)
{
- int retval = 0;
int real_seconds, real_minutes, cmos_minutes;
unsigned char save_control, save_freq_select;
+ int retval = 0;
/* tell the clock it's being set */
save_control = CMOS_READ(RTC_CONTROL);
@@ -72,8 +72,8 @@ int mach_set_rtc_mmss(unsigned long nowtime)
real_seconds = bin2bcd(real_seconds);
real_minutes = bin2bcd(real_minutes);
}
- CMOS_WRITE(real_seconds,RTC_SECONDS);
- CMOS_WRITE(real_minutes,RTC_MINUTES);
+ CMOS_WRITE(real_seconds, RTC_SECONDS);
+ CMOS_WRITE(real_minutes, RTC_MINUTES);
} else {
printk(KERN_WARNING
"set_rtc_mmss: can't update from %d to %d\n",
@@ -151,6 +151,7 @@ unsigned char rtc_cmos_read(unsigned char addr)
outb(addr, RTC_PORT(0));
val = inb(RTC_PORT(1));
lock_cmos_suffix(addr);
+
return val;
}
EXPORT_SYMBOL(rtc_cmos_read);
@@ -166,8 +167,8 @@ EXPORT_SYMBOL(rtc_cmos_write);
static int set_rtc_mmss(unsigned long nowtime)
{
- int retval;
unsigned long flags;
+ int retval;
spin_lock_irqsave(&rtc_lock, flags);
retval = set_wallclock(nowtime);
@@ -242,6 +243,7 @@ static __init int add_rtc_cmos(void)
platform_device_register(&rtc_device);
dev_info(&rtc_device.dev,
"registered platform RTC device (no PNP device found)\n");
+
return 0;
}
device_initcall(add_rtc_cmos);