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MIPS: cevt-ds1287: Migrate to new 'set-state' interface

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Migrate cevt-ds1287 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.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-mips@linux-mips.org
Cc: linaro-kernel@lists.linaro.org
Cc: Thomas Gleixner <tglx@linutronix.de>
Patchwork: https://patchwork.linux-mips.org/patch/10603/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Viresh Kumar 2015-07-06 16:41:56 +05:30 committed by Ralf Baechle
parent 1edf907a09
commit 9f95618f9f
1 changed files with 24 additions and 17 deletions
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41
arch/mips/kernel/cevt-ds1287.c
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@ -59,27 +59,32 @@ static int ds1287_set_next_event(unsigned long delta,
return -EINVAL; return -EINVAL;
} }
static void ds1287_set_mode(enum clock_event_mode mode, static int ds1287_shutdown(struct clock_event_device *evt)
struct clock_event_device *evt)
{ {
u8 val; u8 val;
spin_lock(&rtc_lock); spin_lock(&rtc_lock);
val = CMOS_READ(RTC_REG_B); val = CMOS_READ(RTC_REG_B);
val &= ~RTC_PIE;
switch (mode) {
case CLOCK_EVT_MODE_PERIODIC:
val |= RTC_PIE;
break;
default:
val &= ~RTC_PIE;
break;
}
CMOS_WRITE(val, RTC_REG_B); CMOS_WRITE(val, RTC_REG_B);
spin_unlock(&rtc_lock); spin_unlock(&rtc_lock);
return 0;
}
static int ds1287_set_periodic(struct clock_event_device *evt)
{
u8 val;
spin_lock(&rtc_lock);
val = CMOS_READ(RTC_REG_B);
val |= RTC_PIE;
CMOS_WRITE(val, RTC_REG_B);
spin_unlock(&rtc_lock);
return 0;
} }
static void ds1287_event_handler(struct clock_event_device *dev) static void ds1287_event_handler(struct clock_event_device *dev)
@ -87,11 +92,13 @@ static void ds1287_event_handler(struct clock_event_device *dev)
} }
static struct clock_event_device ds1287_clockevent = { static struct clock_event_device ds1287_clockevent = {
.name = "ds1287", .name = "ds1287",
.features = CLOCK_EVT_FEAT_PERIODIC, .features = CLOCK_EVT_FEAT_PERIODIC,
.set_next_event = ds1287_set_next_event, .set_next_event = ds1287_set_next_event,
.set_mode = ds1287_set_mode, .set_state_shutdown = ds1287_shutdown,
.event_handler = ds1287_event_handler, .set_state_periodic = ds1287_set_periodic,
.tick_resume = ds1287_shutdown,
.event_handler = ds1287_event_handler,
}; };
static irqreturn_t ds1287_interrupt(int irq, void *dev_id) static irqreturn_t ds1287_interrupt(int irq, void *dev_id)