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authorPaul Mundt <lethal@linux-sh.org>2009-05-08 16:57:35 +0900
committerPaul Mundt <lethal@linux-sh.org>2009-05-08 16:57:35 +0900
commitcd1408f22d2fd8f0d09c082b07cf0b9bcfb6eac9 (patch)
treef0e829ea1649d51087c4a5a9f088b7e585fb1d90 /arch/sh/boards
parent6459d7bb72e9767bc7d22f2ee44aab35188e4b8a (diff)
downloadop-kernel-dev-cd1408f22d2fd8f0d09c082b07cf0b9bcfb6eac9.zip
op-kernel-dev-cd1408f22d2fd8f0d09c082b07cf0b9bcfb6eac9.tar.gz
sh: mach-sh03: Give the sh03 rtc its own spinlock.
This converts the sh03 rtc code off of using the global rtc_lock and on to its own spinlock. There are no other possible users of the rtc_lock, so serializing with it is not necessary. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/boards')
-rw-r--r--arch/sh/boards/mach-sh03/rtc.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/sh/boards/mach-sh03/rtc.c b/arch/sh/boards/mach-sh03/rtc.c
index 0a9266b..a8b9f84 100644
--- a/arch/sh/boards/mach-sh03/rtc.c
+++ b/arch/sh/boards/mach-sh03/rtc.c
@@ -35,13 +35,13 @@
#define RTC_BUSY 1
#define RTC_STOP 2
-extern spinlock_t rtc_lock;
+static DEFINE_SPINLOCK(sh03_rtc_lock);
unsigned long get_cmos_time(void)
{
unsigned int year, mon, day, hour, min, sec;
- spin_lock(&rtc_lock);
+ spin_lock(&sh03_rtc_lock);
again:
do {
sec = (ctrl_inb(RTC_SEC1) & 0xf) + (ctrl_inb(RTC_SEC10) & 0x7) * 10;
@@ -73,7 +73,7 @@ unsigned long get_cmos_time(void)
goto again;
}
- spin_unlock(&rtc_lock);
+ spin_unlock(&sh03_rtc_lock);
return mktime(year, mon, day, hour, min, sec);
}
@@ -91,7 +91,7 @@ static int set_rtc_mmss(unsigned long nowtime)
int i;
/* gets recalled with irq locally disabled */
- spin_lock(&rtc_lock);
+ spin_lock(&sh03_rtc_lock);
for (i = 0 ; i < 1000000 ; i++) /* may take up to 1 second... */
if (!(ctrl_inb(RTC_CTL) & RTC_BUSY))
break;
@@ -113,7 +113,7 @@ static int set_rtc_mmss(unsigned long nowtime)
cmos_minutes, real_minutes);
retval = -1;
}
- spin_unlock(&rtc_lock);
+ spin_unlock(&sh03_rtc_lock);
return retval;
}
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