ARM: local timers: convert exynos to runtime registration interface

Convert the Exynos MCT timers to the runtime registration interface.
Tested on Origen.

Cc: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

diff --git a/arch/arm/mach-exynos/mct.c b/arch/arm/mach-exynos/mct.c
index 85b5527..edc4b94 100644 (file)
--- a/arch/arm/mach-exynos/mct.c
+++ b/arch/arm/mach-exynos/mct.c
@@ -21,6 +21,7 @@
 #include <linux/percpu.h>
 
 #include <asm/hardware/gic.h>
+#include <asm/localtimer.h>
 
 #include <plat/cpu.h>
 
@@ -375,7 +376,7 @@ static struct irqaction mct_tick1_event_irq = {
        .handler        = exynos4_mct_tick_isr,
 };
 
-static void exynos4_mct_tick_init(struct clock_event_device *evt)
+static int __cpuinit exynos4_local_timer_setup(struct clock_event_device *evt)
 {
        struct mct_clock_event_device *mevt;
        unsigned int cpu = smp_processor_id();
@@ -417,17 +418,11 @@ static void exynos4_mct_tick_init(struct clock_event_device *evt)
        } else {
                enable_percpu_irq(IRQ_MCT_LOCALTIMER, 0);
        }
-}
-
-/* Setup the local clock events for a CPU */
-int __cpuinit local_timer_setup(struct clock_event_device *evt)
-{
-       exynos4_mct_tick_init(evt);
 
        return 0;
 }
 
-void 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);
@@ -439,6 +434,11 @@ void local_timer_stop(struct clock_event_device *evt)
        else
                disable_percpu_irq(IRQ_MCT_LOCALTIMER);
 }
+
+static struct local_timer_ops exynos4_mct_tick_ops __cpuinitdata = {
+       .setup  = exynos4_local_timer_setup,
+       .stop   = exynos4_local_timer_stop,
+};
 #endif /* CONFIG_LOCAL_TIMERS */
 
 static void __init exynos4_timer_resources(void)
@@ -458,6 +458,8 @@ static void __init exynos4_timer_resources(void)
                WARN(err, "MCT: can't request IRQ %d (%d)\n",
                     IRQ_MCT_LOCALTIMER, err);
        }
+
+       local_timer_register(&exynos4_mct_tick_ops);
 #endif /* CONFIG_LOCAL_TIMERS */
 }