diff options
| author | Luca Falavigna <dktrkranz@gmail.com> | 2005-06-28 20:44:42 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-28 21:20:29 -0700 |
| commit | 47f176fdaf8924bc83fddcf9658f2fd3ef60d573 (patch) | |
| tree | ae54af35889451bf7873595180365182bd704ff1 /drivers/char/rtc.c | |
| parent | 8d451687ca57371d303c5554b377d7f5c2ac6ae0 (diff) | |
| download | op-kernel-dev-47f176fdaf8924bc83fddcf9658f2fd3ef60d573.zip op-kernel-dev-47f176fdaf8924bc83fddcf9658f2fd3ef60d573.tar.gz | |
[PATCH] Using msleep() instead of HZ
Use msleep() in a few places.
Signed-off-by: Luca Falavigna <dktrkranz@gmail.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/char/rtc.c')
| -rw-r--r-- | drivers/char/rtc.c | 16 |
1 files changed, 4 insertions, 12 deletions
diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c index ff4f098..d8f9e94 100644 --- a/drivers/char/rtc.c +++ b/drivers/char/rtc.c @@ -78,6 +78,7 @@ #include <linux/sysctl.h> #include <linux/wait.h> #include <linux/bcd.h> +#include <linux/delay.h> #include <asm/current.h> #include <asm/uaccess.h> @@ -894,7 +895,6 @@ static int __init rtc_init(void) struct proc_dir_entry *ent; #if defined(__alpha__) || defined(__mips__) unsigned int year, ctrl; - unsigned long uip_watchdog; char *guess = NULL; #endif #ifdef __sparc__ @@ -1000,12 +1000,8 @@ no_irq: /* Each operating system on an Alpha uses its own epoch. Let's try to guess which one we are using now. */ - uip_watchdog = jiffies; if (rtc_is_updating() != 0) - while (jiffies - uip_watchdog < 2*HZ/100) { - barrier(); - cpu_relax(); - } + msleep(20); spin_lock_irq(&rtc_lock); year = CMOS_READ(RTC_YEAR); @@ -1213,7 +1209,6 @@ static int rtc_proc_open(struct inode *inode, struct file *file) void rtc_get_rtc_time(struct rtc_time *rtc_tm) { - unsigned long uip_watchdog = jiffies; unsigned char ctrl; #ifdef CONFIG_MACH_DECSTATION unsigned int real_year; @@ -1221,7 +1216,7 @@ void rtc_get_rtc_time(struct rtc_time *rtc_tm) /* * read RTC once any update in progress is done. The update - * can take just over 2ms. We wait 10 to 20ms. There is no need to + * can take just over 2ms. We wait 20ms. There is no need to * to poll-wait (up to 1s - eeccch) for the falling edge of RTC_UIP. * If you need to know *exactly* when a second has started, enable * periodic update complete interrupts, (via ioctl) and then @@ -1230,10 +1225,7 @@ void rtc_get_rtc_time(struct rtc_time *rtc_tm) */ if (rtc_is_updating() != 0) - while (jiffies - uip_watchdog < 2*HZ/100) { - barrier(); - cpu_relax(); - } + msleep(20); /* * Only the values that we read from the RTC are set. We leave |
