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clockevents/drivers/sun5i: Migrate to new 'set-state' interface 

Migrate sun5i driver 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.

Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit is contained in:
Viresh Kumar 2015-06-18 16:24:51 +05:30 committed by Daniel Lezcano
parent 8e8af4cd3b
commit 7486f5ad27
1 changed files with 26 additions and 19 deletions
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45
drivers/clocksource/timer-sun5i.c
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@ -103,27 +103,31 @@ static void sun5i_clkevt_time_start(struct sun5i_timer_clkevt *ce, u8 timer, boo
ce->timer.base + TIMER_CTL_REG(timer));
}
static void sun5i_clkevt_mode(enum clock_event_mode mode,
struct clock_event_device *clkevt)
static int sun5i_clkevt_shutdown(struct clock_event_device *clkevt)
{
struct sun5i_timer_clkevt *ce = to_sun5i_timer_clkevt(clkevt);
switch (mode) {
case CLOCK_EVT_MODE_PERIODIC:
sun5i_clkevt_time_stop(ce, 0);
sun5i_clkevt_time_setup(ce, 0, ce->timer.ticks_per_jiffy);
sun5i_clkevt_time_start(ce, 0, true);
break;
case CLOCK_EVT_MODE_ONESHOT:
sun5i_clkevt_time_stop(ce, 0);
sun5i_clkevt_time_start(ce, 0, false);
break;
case CLOCK_EVT_MODE_UNUSED:
case CLOCK_EVT_MODE_SHUTDOWN:
default:
sun5i_clkevt_time_stop(ce, 0);
break;
}
sun5i_clkevt_time_stop(ce, 0);
return 0;
}
static int sun5i_clkevt_set_oneshot(struct clock_event_device *clkevt)
{
struct sun5i_timer_clkevt *ce = to_sun5i_timer_clkevt(clkevt);
sun5i_clkevt_time_stop(ce, 0);
sun5i_clkevt_time_start(ce, 0, false);
return 0;
}
static int sun5i_clkevt_set_periodic(struct clock_event_device *clkevt)
{
struct sun5i_timer_clkevt *ce = to_sun5i_timer_clkevt(clkevt);
sun5i_clkevt_time_stop(ce, 0);
sun5i_clkevt_time_setup(ce, 0, ce->timer.ticks_per_jiffy);
sun5i_clkevt_time_start(ce, 0, true);
return 0;
}
static int sun5i_clkevt_next_event(unsigned long evt,
@ -286,7 +290,10 @@ static int __init sun5i_setup_clockevent(struct device_node *node, void __iomem
ce->clkevt.name = node->name;
ce->clkevt.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;
ce->clkevt.set_next_event = sun5i_clkevt_next_event;
ce->clkevt.set_mode = sun5i_clkevt_mode;
ce->clkevt.set_state_shutdown = sun5i_clkevt_shutdown;
ce->clkevt.set_state_periodic = sun5i_clkevt_set_periodic;
ce->clkevt.set_state_oneshot = sun5i_clkevt_set_oneshot;
ce->clkevt.tick_resume = sun5i_clkevt_shutdown;
ce->clkevt.rating = 340;
ce->clkevt.irq = irq;
ce->clkevt.cpumask = cpu_possible_mask;