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Diffstat (limited to 'arch/mips/lasat/ds1603.c')
-rw-r--r--arch/mips/lasat/ds1603.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/mips/lasat/ds1603.c b/arch/mips/lasat/ds1603.c
index 9d7812e03dcd..7dced67c55eb 100644
--- a/arch/mips/lasat/ds1603.c
+++ b/arch/mips/lasat/ds1603.c
@@ -8,6 +8,7 @@
#include <asm/lasat/lasat.h>
#include <linux/delay.h>
#include <asm/lasat/ds1603.h>
+#include <asm/time.h>
#include "ds1603.h"
@@ -138,19 +139,27 @@ static void rtc_end_op(void)
unsigned long ds1603_read(void)
{
unsigned long word;
+ unsigned long flags;
+
+ spin_lock_irqsave(&rtc_lock, flags);
rtc_init_op();
rtc_write_byte(READ_TIME_CMD);
word = rtc_read_word();
rtc_end_op();
+ spin_unlock_irqrestore(&rtc_lock, flags);
return word;
}
int ds1603_set(unsigned long time)
{
+ unsigned long flags;
+
+ spin_lock_irqsave(&rtc_lock, flags);
rtc_init_op();
rtc_write_byte(SET_TIME_CMD);
rtc_write_word(time);
rtc_end_op();
+ spin_unlock_irqrestore(&rtc_lock, flags);
return 0;
}