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sparc/time: Migrate to new 'set-state' interface

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Migrate sparc drivers to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.

This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.

We weren't doing anything which switching to few clockevent modes and so
their callbacks aren't implemented.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: sparclinux@vger.kernel.org
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This commit is contained in:
Viresh Kumar
2015-07-16 16:56:29 +05:30
committed by Daniel Lezcano
parent d5ed65d83c
commit ff4aea45c7
3 changed files with 37 additions and 53 deletions
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31
arch/sparc/kernel/time_64.c
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@@ -674,32 +674,19 @@ static int sparc64_next_event(unsigned long delta,
return tick_ops->add_compare(delta) ? -ETIME : 0;
}
static void sparc64_timer_setup(enum clock_event_mode mode,
struct clock_event_device *evt)
static int sparc64_timer_shutdown(struct clock_event_device *evt)
{
switch (mode) {
case CLOCK_EVT_MODE_ONESHOT:
case CLOCK_EVT_MODE_RESUME:
break;
case CLOCK_EVT_MODE_SHUTDOWN:
tick_ops->disable_irq();
break;
case CLOCK_EVT_MODE_PERIODIC:
case CLOCK_EVT_MODE_UNUSED:
WARN_ON(1);
break;
}
tick_ops->disable_irq();
return 0;
}
static struct clock_event_device sparc64_clockevent = {
.features = CLOCK_EVT_FEAT_ONESHOT,
.set_mode = sparc64_timer_setup,
.set_next_event = sparc64_next_event,
.rating = 100,
.shift = 30,
.irq = -1,
.features = CLOCK_EVT_FEAT_ONESHOT,
.set_state_shutdown = sparc64_timer_shutdown,
.set_next_event = sparc64_next_event,
.rating = 100,
.shift = 30,
.irq = -1,
};
static DEFINE_PER_CPU(struct clock_event_device, sparc64_events);