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

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

diff --git a/arch/sparc/kernel/time_64.c b/arch/sparc/kernel/time_64.c
index 63f73ae..c310875 100644 (file)
--- 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);