Commit-ID: 5f0ba3b462b2d36b3c28748863747fb1050f40d0
Gitweb: http://git.kernel.org/tip/5f0ba3b462b2d36b3c28748863747fb1050f40d0
Author: Soren Brinkmann <soren.brinkmann@xxxxxxxxxx>
AuthorDate: Wed, 19 Feb 2014 15:14:41 -0800
Committer: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
CommitDate: Tue, 11 Mar 2014 23:05:18 +0100
clocksource/cadence_ttc: Call clockevents_update_freq() with IRQs enabled
The timer core takes care of serialization and IRQs. Hence the driver is
no longer required to disable interrupts when calling
clockevents_update_freq().
Signed-off-by: Soren Brinkmann <soren.brinkmann@xxxxxxxxxx>
Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Acked-by: Michal Simek <michal.simek@xxxxxxxxxx>
---
drivers/clocksource/cadence_ttc_timer.c | 17 ++---------------
1 file changed, 2 insertions(+), 15 deletions(-)
diff --git a/drivers/clocksource/cadence_ttc_timer.c b/drivers/clocksource/cadence_ttc_timer.c
index 63f176d..f05b9fd 100644
--- a/drivers/clocksource/cadence_ttc_timer.c
+++ b/drivers/clocksource/cadence_ttc_timer.c
@@ -321,25 +321,12 @@ static int ttc_rate_change_clockevent_cb(struct notifier_block *nb,
switch (event) {
case POST_RATE_CHANGE:
- {
- unsigned long flags;
-
- /*
- * clockevents_update_freq should be called with IRQ disabled on
- * the CPU the timer provides events for. The timer we use is
- * common to both CPUs, not sure if we need to run on both
- * cores.
- */
- local_irq_save(flags);
- clockevents_update_freq(&ttcce->ce,
- ndata->new_rate / PRESCALE);
- local_irq_restore(flags);
-
/* update cached frequency */
ttc->freq = ndata->new_rate;
+ clockevents_update_freq(&ttcce->ce, ndata->new_rate / PRESCALE);
+
/* fall through */
- }
case PRE_RATE_CHANGE:
case ABORT_RATE_CHANGE:
default:
--
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