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clocksource: exynos_mct: use (request/free)_irq calls for local timer registration

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Replace the (setup/remove)_irq calls for local timer registration with
(request/free)_irq calls. This generalizes the local timer registration API.
Suggested by Mark Rutland.

Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Chander Kashyap 2013-06-19 00:29:35 +09:00 committed by Kukjin Kim
parent 34dcedfbf9
commit 7114cd749a
1 changed files with 9 additions and 26 deletions
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35
drivers/clocksource/exynos_mct.c
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@ -400,18 +400,6 @@ static irqreturn_t exynos4_mct_tick_isr(int irq, void *dev_id)
return IRQ_HANDLED; return IRQ_HANDLED;
} }
static struct irqaction mct_tick0_event_irq = {
.name = "mct_tick0_irq",
.flags = IRQF_TIMER | IRQF_NOBALANCING,
.handler = exynos4_mct_tick_isr,
};
static struct irqaction mct_tick1_event_irq = {
.name = "mct_tick1_irq",
.flags = IRQF_TIMER | IRQF_NOBALANCING,
.handler = exynos4_mct_tick_isr,
};
static int __cpuinit exynos4_local_timer_setup(struct clock_event_device *evt) static int __cpuinit exynos4_local_timer_setup(struct clock_event_device *evt)
{ {
struct mct_clock_event_device *mevt; struct mct_clock_event_device *mevt;
@ -435,16 +423,15 @@ static int __cpuinit exynos4_local_timer_setup(struct clock_event_device *evt)
exynos4_mct_write(TICK_BASE_CNT, mevt->base + MCT_L_TCNTB_OFFSET); exynos4_mct_write(TICK_BASE_CNT, mevt->base + MCT_L_TCNTB_OFFSET);
if (mct_int_type == MCT_INT_SPI) { if (mct_int_type == MCT_INT_SPI) {
if (cpu == 0) { evt->irq = mct_irqs[MCT_L0_IRQ + cpu];
mct_tick0_event_irq.dev_id = mevt; if (request_irq(evt->irq, exynos4_mct_tick_isr,
evt->irq = mct_irqs[MCT_L0_IRQ]; IRQF_TIMER | IRQF_NOBALANCING,
setup_irq(evt->irq, &mct_tick0_event_irq); evt->name, mevt)) {
} else { pr_err("exynos-mct: cannot register IRQ %d\n",
mct_tick1_event_irq.dev_id = mevt; evt->irq);
evt->irq = mct_irqs[MCT_L1_IRQ]; return -EIO;
setup_irq(evt->irq, &mct_tick1_event_irq);
irq_set_affinity(evt->irq, cpumask_of(1));
} }
irq_set_affinity(evt->irq, cpumask_of(cpu));
} else { } else {
enable_percpu_irq(mct_irqs[MCT_L0_IRQ], 0); enable_percpu_irq(mct_irqs[MCT_L0_IRQ], 0);
} }
@ -454,13 +441,9 @@ static int __cpuinit exynos4_local_timer_setup(struct clock_event_device *evt)
static void exynos4_local_timer_stop(struct clock_event_device *evt) static void exynos4_local_timer_stop(struct clock_event_device *evt)
{ {
unsigned int cpu = smp_processor_id();
evt->set_mode(CLOCK_EVT_MODE_UNUSED, evt); evt->set_mode(CLOCK_EVT_MODE_UNUSED, evt);
if (mct_int_type == MCT_INT_SPI) if (mct_int_type == MCT_INT_SPI)
if (cpu == 0) free_irq(evt->irq, this_cpu_ptr(&percpu_mct_tick));
remove_irq(evt->irq, &mct_tick0_event_irq);
else
remove_irq(evt->irq, &mct_tick1_event_irq);
else else
disable_percpu_irq(mct_irqs[MCT_L0_IRQ]); disable_percpu_irq(mct_irqs[MCT_L0_IRQ]);
} }