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

Migrate zevio 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: Daniel Tang <dt.tangr@gmail.com>
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 2015-06-18 16:24:55 +05:30 committed by Daniel Lezcano
parent 214bc755b6
commit f0753793d3
1 changed files with 21 additions and 23 deletions
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44
drivers/clocksource/zevio-timer.c
View File

@ -76,32 +76,28 @@ static int zevio_timer_set_event(unsigned long delta,
return 0;
}
static void zevio_timer_set_mode(enum clock_event_mode mode,
struct clock_event_device *dev)
static int zevio_timer_shutdown(struct clock_event_device *dev)
{
struct zevio_timer *timer = container_of(dev, struct zevio_timer,
clkevt);
switch (mode) {
case CLOCK_EVT_MODE_RESUME:
case CLOCK_EVT_MODE_ONESHOT:
/* Enable timer interrupts */
writel(TIMER_INTR_MSK, timer->interrupt_regs + IO_INTR_MSK);
writel(TIMER_INTR_ALL, timer->interrupt_regs + IO_INTR_ACK);
break;
case CLOCK_EVT_MODE_SHUTDOWN:
case CLOCK_EVT_MODE_UNUSED:
/* Disable timer interrupts */
writel(0, timer->interrupt_regs + IO_INTR_MSK);
writel(TIMER_INTR_ALL, timer->interrupt_regs + IO_INTR_ACK);
/* Stop timer */
writel(CNTL_STOP_TIMER, timer->timer1 + IO_CONTROL);
break;
case CLOCK_EVT_MODE_PERIODIC:
default:
/* Unsupported */
break;
}
/* Disable timer interrupts */
writel(0, timer->interrupt_regs + IO_INTR_MSK);
writel(TIMER_INTR_ALL, timer->interrupt_regs + IO_INTR_ACK);
/* Stop timer */
writel(CNTL_STOP_TIMER, timer->timer1 + IO_CONTROL);
return 0;
}
static int zevio_timer_set_oneshot(struct clock_event_device *dev)
{
struct zevio_timer *timer = container_of(dev, struct zevio_timer,
clkevt);
/* Enable timer interrupts */
writel(TIMER_INTR_MSK, timer->interrupt_regs + IO_INTR_MSK);
writel(TIMER_INTR_ALL, timer->interrupt_regs + IO_INTR_ACK);
return 0;
}
static irqreturn_t zevio_timer_interrupt(int irq, void *dev_id)
@ -162,7 +158,9 @@ static int __init zevio_timer_add(struct device_node *node)
if (timer->interrupt_regs && irqnr) {
timer->clkevt.name = timer->clockevent_name;
timer->clkevt.set_next_event = zevio_timer_set_event;
timer->clkevt.set_mode = zevio_timer_set_mode;
timer->clkevt.set_state_shutdown = zevio_timer_shutdown;
timer->clkevt.set_state_oneshot = zevio_timer_set_oneshot;
timer->clkevt.tick_resume = zevio_timer_set_oneshot;
timer->clkevt.rating = 200;
timer->clkevt.cpumask = cpu_all_mask;
timer->clkevt.features = CLOCK_EVT_FEAT_ONESHOT;