clocksource: em_sti: Set cpu_possible_mask to fix SMP broadcast

commit 2199a5574b6d94b9ca26c6345356f45ec60fef8b upstream.

Update the STI driver by setting cpu_possible_mask to make EMEV2
SMP work as expected together with the ARM broadcast timer.

This breakage was introduced by:

f7db706 ARM: 7674/1: smp: Avoid dummy clockevent being preferred over real hardware clock-event

Without this fix SMP operation is broken on EMEV2 since no
broadcast timer interrupts trigger on the secondary CPU cores.

Signed-off-by: Magnus Damm <damm@opensource.se>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/clocksource/em_sti.c b/drivers/clocksource/em_sti.c
index 4329a29a5310d046eaedc12cd14229791c6e14f1..314184932293b20bfe619c676f931794a1753c05 100644 (file)
--- a/drivers/clocksource/em_sti.c
+++ b/drivers/clocksource/em_sti.c
@@ -301,7 +301,7 @@ static void em_sti_register_clockevent(struct em_sti_priv *p)
        ced->name = dev_name(&p->pdev->dev);
        ced->features = CLOCK_EVT_FEAT_ONESHOT;
        ced->rating = 200;
-       ced->cpumask = cpumask_of(0);
+       ced->cpumask = cpu_possible_mask;
        ced->set_next_event = em_sti_clock_event_next;
        ced->set_mode = em_sti_clock_event_mode;