diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2011-05-30 15:51:47 +0200 |
|---|---|---|
| committer | Nicolas Pitre <nicolas.pitre@linaro.org> | 2011-06-22 11:26:35 -0400 |
| commit | 7c9bd35447f4b159ea8fcbf26e673deea9f806a6 (patch) | |
| tree | 15dd77f3dbebba2bad9a0941046152bab53841af /arch | |
| parent | 49970cf0bb8ccef94a93daa7f43e8ff4a0c821d2 (diff) | |
mach-u300: cleanup clockevent code
Use the new clockevents_config_and_register() function to register
the U300 clockevent, since that code requires ->cpumask to be set
we set this even on this UP system to please the framework.
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
(cherry picked from commit c918aa65544259f31efabbc8f61211079c20471c)
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-u300/timer.c | 33 |
1 files changed, 12 insertions, 21 deletions
diff --git a/arch/arm/mach-u300/timer.c b/arch/arm/mach-u300/timer.c index 18d7fa0603c..5f51bdeef0e 100644 --- a/arch/arm/mach-u300/timer.c +++ b/arch/arm/mach-u300/timer.c @@ -27,9 +27,6 @@ #include <asm/mach/time.h> #include <asm/mach/irq.h> -/* Be able to sleep for atleast 4 seconds (usually more) */ -#define APPTIMER_MIN_RANGE 4 - /* * APP side special timer registers * This timer contains four timers which can fire an interrupt each. @@ -309,11 +306,11 @@ static int u300_set_next_event(unsigned long cycles, /* Use general purpose timer 1 as clock event */ static struct clock_event_device clockevent_u300_1mhz = { - .name = "GPT1", - .rating = 300, /* Reasonably fast and accurate clock event */ - .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, - .set_next_event = u300_set_next_event, - .set_mode = u300_set_mode, + .name = "GPT1", + .rating = 300, /* Reasonably fast and accurate clock event */ + .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, + .set_next_event = u300_set_next_event, + .set_mode = u300_set_mode, }; /* Clock event timer interrupt handler */ @@ -328,9 +325,9 @@ static irqreturn_t u300_timer_interrupt(int irq, void *dev_id) } static struct irqaction u300_timer_irq = { - .name = "U300 Timer Tick", - .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL, - .handler = u300_timer_interrupt, + .name = "U300 Timer Tick", + .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL, + .handler = u300_timer_interrupt, }; /* @@ -413,16 +410,10 @@ static void __init u300_timer_init(void) "GPT2", rate, 300, 32, clocksource_mmio_readl_up)) pr_err("timer: failed to initialize U300 clock source\n"); - clockevents_calc_mult_shift(&clockevent_u300_1mhz, - rate, APPTIMER_MIN_RANGE); - /* 32bit counter, so 32bits delta is max */ - clockevent_u300_1mhz.max_delta_ns = - clockevent_delta2ns(0xffffffff, &clockevent_u300_1mhz); - /* This timer is slow enough to set for 1 cycle == 1 MHz */ - clockevent_u300_1mhz.min_delta_ns = - clockevent_delta2ns(1, &clockevent_u300_1mhz); - clockevent_u300_1mhz.cpumask = cpumask_of(0); - clockevents_register_device(&clockevent_u300_1mhz); + /* Configure and register the clockevent */ + clockevents_config_and_register(&clockevent_u300_1mhz, rate, + 1, 0xffffffff); + /* * TODO: init and register the rest of the timers too, they can be * used by hrtimers! |