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| author | Kevin Hilman | 2010-03-11 23:57:35 +0100 |
|---|---|---|
| committer | Kevin Hilman | 2010-04-06 00:25:11 +0200 |
| commit | d99c3871148cb643cffe138e9427b7a743aca367 (patch) | |
| tree | c8c9f16f963263dce4ed72d814d72cb93ed481ee | |
| parent | Linux 2.6.34-rc3 (diff) | |
| download | kernel-qcow2-linux-d99c3871148cb643cffe138e9427b7a743aca367.tar.gz kernel-qcow2-linux-d99c3871148cb643cffe138e9427b7a743aca367.tar.xz kernel-qcow2-linux-d99c3871148cb643cffe138e9427b7a743aca367.zip | |
davinci: timers: don't enable timer until clocksource is initialized
On da830, when the same timer is used for clocksource and clockevent,
the timer can be started before the clockevent is
registered/initialzed. This creates a window where a timer
interrupt might fire before the clockevent handler has been
setup and causes a crash.
This patch moves the actual enable/start of the timer after
the clockevent has ben registered.
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| -rw-r--r-- | arch/arm/mach-davinci/time.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/arm/mach-davinci/time.c b/arch/arm/mach-davinci/time.c index 42d985beece5..9e0b106b4f5f 100644 --- a/arch/arm/mach-davinci/time.c +++ b/arch/arm/mach-davinci/time.c @@ -253,8 +253,6 @@ static void __init timer_init(void) irq = USING_COMPARE(t) ? dtip[i].cmp_irq : irq; setup_irq(irq, &t->irqaction); } - - timer32_config(&timers[i]); } } @@ -331,6 +329,7 @@ static void __init davinci_timer_init(void) unsigned int clocksource_id; static char err[] __initdata = KERN_ERR "%s: can't register clocksource!\n"; + int i; clockevent_id = soc_info->timer_info->clockevent_id; clocksource_id = soc_info->timer_info->clocksource_id; @@ -389,6 +388,9 @@ static void __init davinci_timer_init(void) clockevent_davinci.cpumask = cpumask_of(0); clockevents_register_device(&clockevent_davinci); + + for (i=0; i< ARRAY_SIZE(timers); i++) + timer32_config(&timers[i]); } struct sys_timer davinci_timer = { |