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

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Migrate pxa 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.

Both oneshot and shutdown modes had exactly same code and so only a
single callback is sufficient now, which will be called for both the
modes.

Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
This commit is contained in:
Viresh Kumar 2015-06-18 16:24:30 +05:30 committed by Daniel Lezcano
parent 9b0af69947
commit 47d490ea15
1 changed files with 13 additions and 26 deletions
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39
drivers/clocksource/pxa_timer.c
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@ -88,26 +88,12 @@ pxa_osmr0_set_next_event(unsigned long delta, struct clock_event_device *dev)
return (signed)(next - oscr) <= MIN_OSCR_DELTA ? -ETIME : 0;
}
static void
pxa_osmr0_set_mode(enum clock_event_mode mode, struct clock_event_device *dev)
static int pxa_osmr0_shutdown(struct clock_event_device *evt)
{
switch (mode) {
case CLOCK_EVT_MODE_ONESHOT:
timer_writel(timer_readl(OIER) & ~OIER_E0, OIER);
timer_writel(OSSR_M0, OSSR);
break;
case CLOCK_EVT_MODE_UNUSED:
case CLOCK_EVT_MODE_SHUTDOWN:
/* initializing, released, or preparing for suspend */
timer_writel(timer_readl(OIER) & ~OIER_E0, OIER);
timer_writel(OSSR_M0, OSSR);
break;
case CLOCK_EVT_MODE_RESUME:
case CLOCK_EVT_MODE_PERIODIC:
break;
}
/* initializing, released, or preparing for suspend */
timer_writel(timer_readl(OIER) & ~OIER_E0, OIER);
timer_writel(OSSR_M0, OSSR);
return 0;
}
#ifdef CONFIG_PM
@ -147,13 +133,14 @@ static void pxa_timer_resume(struct clock_event_device *cedev)
#endif
static struct clock_event_device ckevt_pxa_osmr0 = {
.name = "osmr0",
.features = CLOCK_EVT_FEAT_ONESHOT,
.rating = 200,
.set_next_event = pxa_osmr0_set_next_event,
.set_mode = pxa_osmr0_set_mode,
.suspend = pxa_timer_suspend,
.resume = pxa_timer_resume,
.name = "osmr0",
.features = CLOCK_EVT_FEAT_ONESHOT,
.rating = 200,
.set_next_event = pxa_osmr0_set_next_event,
.set_state_shutdown = pxa_osmr0_shutdown,
.set_state_oneshot = pxa_osmr0_shutdown,
.suspend = pxa_timer_suspend,
.resume = pxa_timer_resume,
};
static struct irqaction pxa_ost0_irq = {