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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>
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parent
6459d7bb72
commit
cd1408f22d
1 changed files with 5 additions and 5 deletions
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@ -35,13 +35,13 @@
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#define RTC_BUSY 1
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#define RTC_BUSY 1
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#define RTC_STOP 2
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#define RTC_STOP 2
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extern spinlock_t rtc_lock;
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static DEFINE_SPINLOCK(sh03_rtc_lock);
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unsigned long get_cmos_time(void)
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unsigned long get_cmos_time(void)
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{
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{
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unsigned int year, mon, day, hour, min, sec;
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unsigned int year, mon, day, hour, min, sec;
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spin_lock(&rtc_lock);
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spin_lock(&sh03_rtc_lock);
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again:
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again:
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do {
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do {
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sec = (ctrl_inb(RTC_SEC1) & 0xf) + (ctrl_inb(RTC_SEC10) & 0x7) * 10;
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sec = (ctrl_inb(RTC_SEC1) & 0xf) + (ctrl_inb(RTC_SEC10) & 0x7) * 10;
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@ -73,7 +73,7 @@ unsigned long get_cmos_time(void)
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goto again;
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goto again;
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}
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}
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spin_unlock(&rtc_lock);
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spin_unlock(&sh03_rtc_lock);
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return mktime(year, mon, day, hour, min, sec);
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return mktime(year, mon, day, hour, min, sec);
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}
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}
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@ -91,7 +91,7 @@ static int set_rtc_mmss(unsigned long nowtime)
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int i;
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int i;
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/* gets recalled with irq locally disabled */
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/* gets recalled with irq locally disabled */
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spin_lock(&rtc_lock);
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spin_lock(&sh03_rtc_lock);
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for (i = 0 ; i < 1000000 ; i++) /* may take up to 1 second... */
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for (i = 0 ; i < 1000000 ; i++) /* may take up to 1 second... */
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if (!(ctrl_inb(RTC_CTL) & RTC_BUSY))
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if (!(ctrl_inb(RTC_CTL) & RTC_BUSY))
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break;
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break;
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@ -113,7 +113,7 @@ static int set_rtc_mmss(unsigned long nowtime)
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cmos_minutes, real_minutes);
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cmos_minutes, real_minutes);
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retval = -1;
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retval = -1;
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}
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}
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spin_unlock(&rtc_lock);
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spin_unlock(&sh03_rtc_lock);
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return retval;
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return retval;
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}
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}
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