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

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Migrate unicore 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.

We weren't doing anything for PERIODIC or RESUME modes and so their
callbacks aren't implemented.

Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
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 16:56:32 +05:30 committed by Daniel Lezcano
parent 71b5280b79
commit 3078c8df2c
1 changed files with 10 additions and 19 deletions
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29
arch/unicore32/kernel/time.c
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@ -46,29 +46,20 @@ puv3_osmr0_set_next_event(unsigned long delta, struct clock_event_device *c)
return (signed)(next - oscr) <= MIN_OSCR_DELTA ? -ETIME : 0;
}
static void
puv3_osmr0_set_mode(enum clock_event_mode mode, struct clock_event_device *c)
static int puv3_osmr0_shutdown(struct clock_event_device *evt)
{
switch (mode) {
case CLOCK_EVT_MODE_ONESHOT:
case CLOCK_EVT_MODE_UNUSED:
case CLOCK_EVT_MODE_SHUTDOWN:
writel(readl(OST_OIER) & ~OST_OIER_E0, OST_OIER);
writel(readl(OST_OSSR) & ~OST_OSSR_M0, OST_OSSR);
break;
case CLOCK_EVT_MODE_RESUME:
case CLOCK_EVT_MODE_PERIODIC:
break;
}
writel(readl(OST_OIER) & ~OST_OIER_E0, OST_OIER);
writel(readl(OST_OSSR) & ~OST_OSSR_M0, OST_OSSR);
return 0;
}
static struct clock_event_device ckevt_puv3_osmr0 = {
.name = "osmr0",
.features = CLOCK_EVT_FEAT_ONESHOT,
.rating = 200,
.set_next_event = puv3_osmr0_set_next_event,
.set_mode = puv3_osmr0_set_mode,
.name = "osmr0",
.features = CLOCK_EVT_FEAT_ONESHOT,
.rating = 200,
.set_next_event = puv3_osmr0_set_next_event,
.set_state_shutdown = puv3_osmr0_shutdown,
.set_state_oneshot = puv3_osmr0_shutdown,
};
static cycle_t puv3_read_oscr(struct clocksource *cs)