ARM arch timers stop in low power state and hence can not wakeup CPUs in deeper idle states when used as cloc event devices. Marking these clock event devices with C3_STOP so that during lowpower states, the tick is managed by wakeup capable broadcast timer.
Cc: Marc Zyngier <[email protected]> Signed-off-by: Santosh Shilimkar <[email protected]> --- arch/arm/kernel/arch_timer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/kernel/arch_timer.c b/arch/arm/kernel/arch_timer.c index dd58035..df44c8c 100644 --- a/arch/arm/kernel/arch_timer.c +++ b/arch/arm/kernel/arch_timer.c @@ -137,7 +137,7 @@ static int __cpuinit arch_timer_setup(struct clock_event_device *clk) /* Be safe... */ arch_timer_disable(); - clk->features = CLOCK_EVT_FEAT_ONESHOT; + clk->features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_C3STOP; clk->name = "arch_sys_timer"; clk->rating = 450; clk->set_mode = arch_timer_set_mode; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
