sparc64: Use clock{source,events}_calc_mult_shift().

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 22 deletions

diff --git a/arch/sparc/kernel/time_64.c b/arch/sparc/kernel/time_64.c
index 63f73ae8a892..c310875c9281 100644
--- a/arch/sparc/kernel/time_64.c
+++ b/arch/sparc/kernel/time_64.c
@@ -774,26 +774,9 @@ void __devinit setup_sparc64_timer(void)
 static struct clocksource clocksource_tick = {
         .rating         = 100,
         .mask           = CLOCKSOURCE_MASK(64),
-        .shift          = 16,
         .flags          = CLOCK_SOURCE_IS_CONTINUOUS,
 };
 
-static void __init setup_clockevent_multiplier(unsigned long hz)
-{
-        unsigned long mult, shift = 32;
-
-        while (1) {
-                mult = div_sc(hz, NSEC_PER_SEC, shift);
-                if (mult && (mult >> 32UL) == 0UL)
-                        break;
-
-                shift--;
-        }
-
-        sparc64_clockevent.shift = shift;
-        sparc64_clockevent.mult = mult;
-}
-
 static unsigned long tb_ticks_per_usec __read_mostly;
 
 void __delay(unsigned long loops)
@@ -828,9 +811,7 @@ void __init time_init(void)
                 clocksource_hz2mult(freq, SPARC64_NSEC_PER_CYC_SHIFT);
 
         clocksource_tick.name = tick_ops->name;
-        clocksource_tick.mult =
-                clocksource_hz2mult(freq,
-                                    clocksource_tick.shift);
+        clocksource_calc_mult_shift(&clocksource_tick, freq, 4);
         clocksource_tick.read = clocksource_tick_read;
 
         printk("clocksource: mult[%x] shift[%d]\n",
@@ -839,8 +820,7 @@ void __init time_init(void)
         clocksource_register(&clocksource_tick);
 
         sparc64_clockevent.name = tick_ops->name;
-
-        setup_clockevent_multiplier(freq);
+        clockevents_calc_mult_shift(&sparc64_clockevent, freq, 4);
 
         sparc64_clockevent.max_delta_ns =
                 clockevent_delta2ns(0x7fffffffffffffffUL, &sparc64_clockevent);