ARM: PXA: update clock source registration
authorRussell King <rmk+kernel@arm.linux.org.uk>
Mon, 13 Dec 2010 13:19:11 +0000 (13:19 +0000)
committerRussell King <rmk+kernel@arm.linux.org.uk>
Wed, 22 Dec 2010 22:44:35 +0000 (22:44 +0000)
In d7e81c2 (clocksource: Add clocksource_register_hz/khz interface) new
interfaces were added which simplify (and optimize) the selection of the
divisor shift/mult constants.  Switch over to using this new interface.

Tested-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
arch/arm/mach-pxa/time.c

index 293e40a..caf92c0 100644 (file)
@@ -127,7 +127,6 @@ static struct clocksource cksrc_pxa_oscr0 = {
        .rating         = 200,
        .read           = pxa_read_oscr,
        .mask           = CLOCKSOURCE_MASK(32),
-       .shift          = 20,
        .flags          = CLOCK_SOURCE_IS_CONTINUOUS,
 };
 
@@ -155,12 +154,9 @@ static void __init pxa_timer_init(void)
                clockevent_delta2ns(MIN_OSCR_DELTA * 2, &ckevt_pxa_osmr0) + 1;
        ckevt_pxa_osmr0.cpumask = cpumask_of(0);
 
-       cksrc_pxa_oscr0.mult =
-               clocksource_hz2mult(clock_tick_rate, cksrc_pxa_oscr0.shift);
-
        setup_irq(IRQ_OST0, &pxa_ost0_irq);
 
-       clocksource_register(&cksrc_pxa_oscr0);
+       clocksource_register_hz(&cksrc_pxa_oscr0, clock_tick_rate);
        clockevents_register_device(&ckevt_pxa_osmr0);
 }