ARM: 7243/1: sp804: modernize clock event registration

This removes the hardcoded shift value and lets the clockevent core
come up with suitable mult and div factors. Tested on the
Integrator/CP.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/arch/arm/common/timer-sp.c b/arch/arm/common/timer-sp.c
index 2393b5b..8794a34 100644 (file)
--- a/arch/arm/common/timer-sp.c
+++ b/arch/arm/common/timer-sp.c
@@ -143,7 +143,6 @@ static int sp804_set_next_event(unsigned long next,
 }
 
 static struct clock_event_device sp804_clockevent = {
-       .shift          = 32,
        .features       = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
        .set_mode       = sp804_set_mode,
        .set_next_event = sp804_set_next_event,
@@ -169,13 +168,9 @@ void __init sp804_clockevents_init(void __iomem *base, unsigned int irq,
 
        clkevt_base = base;
        clkevt_reload = DIV_ROUND_CLOSEST(rate, HZ);
-
        evt->name = name;
        evt->irq = irq;
-       evt->mult = div_sc(rate, NSEC_PER_SEC, evt->shift);
-       evt->max_delta_ns = clockevent_delta2ns(0xffffffff, evt);
-       evt->min_delta_ns = clockevent_delta2ns(0xf, evt);
 
        setup_irq(irq, &sp804_timer_irq);
-       clockevents_register_device(evt);
+       clockevents_config_and_register(evt, rate, 0xf, 0xffffffff);
 }