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authorThomas Gleixner <tglx@linutronix.de>2011-03-18 16:52:50 +0000
committerDavid Howells <dhowells@redhat.com>2011-03-18 16:52:50 +0000
commitdc7daf33626d1f4afc97505516f824caf440d52c (patch)
tree15daa531f01830a97659f46445b467c735c6a91c /arch/mn10300
parent817890ba15df44181bc9c2bf7527cb066ebae06f (diff)
downloadlinux-dc7daf33626d1f4afc97505516f824caf440d52c.tar.bz2
MN10300: Use clockevents_calc_mult_shift()
Use clockevents_calc_mult_shift() instead of the homebrewn function in mn10300/kernel/time.c. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: John Stultz <johnstul@us.ibm.com> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Cc: Mark Salter <msalter@redhat.com> Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'arch/mn10300')
-rw-r--r--arch/mn10300/kernel/cevt-mn10300.c5
-rw-r--r--arch/mn10300/kernel/internal.h7
-rw-r--r--arch/mn10300/kernel/time.c17
3 files changed, 3 insertions, 26 deletions
diff --git a/arch/mn10300/kernel/cevt-mn10300.c b/arch/mn10300/kernel/cevt-mn10300.c
index d4cb535bf786..9eb387adea7c 100644
--- a/arch/mn10300/kernel/cevt-mn10300.c
+++ b/arch/mn10300/kernel/cevt-mn10300.c
@@ -89,9 +89,10 @@ int __init init_clockevents(void)
cd->name = "Timestamp";
cd->features = CLOCK_EVT_FEAT_ONESHOT;
- /* Calculate the min / max delta */
- clockevent_set_clock(cd, MN10300_JCCLK);
+ /* Calculate shift/mult. We want to spawn at least 1 second */
+ clockevents_calc_mult_shift(cd, MN10300_JCCLK, 1);
+ /* Calculate the min / max delta */
cd->max_delta_ns = clockevent_delta2ns(TMJCBR_MAX, cd);
cd->min_delta_ns = clockevent_delta2ns(100, cd);
diff --git a/arch/mn10300/kernel/internal.h b/arch/mn10300/kernel/internal.h
index 3d43d4dd0233..ea946613f46d 100644
--- a/arch/mn10300/kernel/internal.h
+++ b/arch/mn10300/kernel/internal.h
@@ -33,10 +33,3 @@ extern void mn10300_low_ipi_handler(void);
* time.c
*/
extern irqreturn_t local_timer_interrupt(void);
-
-/*
- * time.c
- */
-#ifdef CONFIG_CSRC_MN10300
-extern void clocksource_set_clock(struct clocksource *, unsigned int);
-#endif
diff --git a/arch/mn10300/kernel/time.c b/arch/mn10300/kernel/time.c
index 78f72080ca17..67c6416a58f8 100644
--- a/arch/mn10300/kernel/time.c
+++ b/arch/mn10300/kernel/time.c
@@ -93,23 +93,6 @@ irqreturn_t local_timer_interrupt(void)
return IRQ_HANDLED;
}
-void __cpuinit clockevent_set_clock(struct clock_event_device *cd,
- unsigned int clock)
-{
- u64 temp;
- u32 shift;
-
- /* Find a shift value */
- for (shift = 32; shift > 0; shift--) {
- temp = (u64) clock << shift;
- do_div(temp, NSEC_PER_SEC);
- if ((temp >> 32) == 0)
- break;
- }
- cd->shift = shift;
- cd->mult = (u32) temp;
-}
-
/*
* initialise the various timers used by the main part of the kernel
*/