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Commit 9e4559dd authored by Kevin Hilman's avatar Kevin Hilman Committed by Russell King
Browse files

[ARM] 4258/2: Support for dynticks in idle loop 



And, wrap timer_tick() and sysdev suspend/resume in
!GENERIC_CLOCKEVENTS since clockevent layer takes care
of these.

Signed-off-by: default avatarKevin Hilman <khilman@mvista.com>
Acked-by: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 0567a0c0

arch/arm/kernel/process.c

+3 −0
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ 
#include <linux/cpu.h>

#include <linux/elfcore.h>

#include <linux/pm.h>

#include <linux/tick.h>



#include <asm/leds.h>

#include <asm/processor.h>
@@ -159,9 +160,11 @@ void cpu_idle(void) 
		if (!idle)

			idle = default_idle;

		leds_event(led_idle_start);

		tick_nohz_stop_sched_tick();

		while (!need_resched())

			idle();

		leds_event(led_idle_end);

		tick_nohz_restart_sched_tick();

		preempt_enable_no_resched();

		schedule();

		preempt_disable();

arch/arm/kernel/time.c

+3 −1
Original line number Diff line number Diff line
@@ -327,6 +327,7 @@ void restore_time_delta(struct timespec *delta, struct timespec *rtc) 
}

EXPORT_SYMBOL(restore_time_delta);



#ifndef CONFIG_GENERIC_CLOCKEVENTS

/*

 * Kernel system timer support.

 */
@@ -340,8 +341,9 @@ void timer_tick(void) 
	update_process_times(user_mode(get_irq_regs()));

#endif

}

#endif



#ifdef CONFIG_PM

#if defined(CONFIG_PM) && !defined(CONFIG_GENERIC_CLOCKEVENTS)

static int timer_suspend(struct sys_device *dev, pm_message_t state)

{

	struct sys_timer *timer = container_of(dev, struct sys_timer, dev);