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authorViresh Kumar <viresh.kumar@linaro.org>2015-07-27 15:02:00 +0530
committerDaniel Lezcano <daniel.lezcano@linaro.org>2015-08-10 11:40:58 +0200
commitfc2b2f5df6d8dbf78c958a34628a3880150d6c9e (patch)
treeec7f1c7f1a6cdcd115c489677b945c0c2ade59b7 /drivers/clocksource
parent452b13248fe8499b2d9a487999d3610095aecca5 (diff)
downloadlinux-fc2b2f5df6d8dbf78c958a34628a3880150d6c9e.tar.bz2
clockevents/drivers/h8300_timer8: Migrate to new 'set-state' interface
Migrate h8300_timer8 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> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Diffstat (limited to 'drivers/clocksource')
-rw-r--r--drivers/clocksource/h8300_timer8.c51
1 files changed, 28 insertions, 23 deletions
diff --git a/drivers/clocksource/h8300_timer8.c b/drivers/clocksource/h8300_timer8.c
index 0214cb3a7f5e..f9b3b7033a97 100644
--- a/drivers/clocksource/h8300_timer8.c
+++ b/drivers/clocksource/h8300_timer8.c
@@ -81,7 +81,7 @@ static irqreturn_t timer8_interrupt(int irq, void *dev_id)
p->flags |= FLAG_IRQCONTEXT;
ctrl_outw(p->tcora, p->mapbase + TCORA);
if (!(p->flags & FLAG_SKIPEVENT)) {
- if (p->ced.mode == CLOCK_EVT_MODE_ONESHOT)
+ if (clockevent_state_oneshot(&p->ced))
ctrl_outw(0x0000, p->mapbase + _8TCR);
p->ced.event_handler(&p->ced);
}
@@ -169,29 +169,32 @@ static void timer8_clock_event_start(struct timer8_priv *p, int periodic)
timer8_set_next(p, periodic?(p->rate + HZ/2) / HZ:0x10000);
}
-static void timer8_clock_event_mode(enum clock_event_mode mode,
- struct clock_event_device *ced)
+static int timer8_clock_event_shutdown(struct clock_event_device *ced)
+{
+ timer8_stop(ced_to_priv(ced));
+ return 0;
+}
+
+static int timer8_clock_event_periodic(struct clock_event_device *ced)
{
struct timer8_priv *p = ced_to_priv(ced);
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- dev_info(&p->pdev->dev, "used for periodic clock events\n");
- timer8_stop(p);
- timer8_clock_event_start(p, PERIODIC);
- break;
- case CLOCK_EVT_MODE_ONESHOT:
- dev_info(&p->pdev->dev, "used for oneshot clock events\n");
- timer8_stop(p);
- timer8_clock_event_start(p, ONESHOT);
- break;
- case CLOCK_EVT_MODE_SHUTDOWN:
- case CLOCK_EVT_MODE_UNUSED:
- timer8_stop(p);
- break;
- default:
- break;
- }
+ dev_info(&p->pdev->dev, "used for periodic clock events\n");
+ timer8_stop(p);
+ timer8_clock_event_start(p, PERIODIC);
+
+ return 0;
+}
+
+static int timer8_clock_event_oneshot(struct clock_event_device *ced)
+{
+ struct timer8_priv *p = ced_to_priv(ced);
+
+ dev_info(&p->pdev->dev, "used for oneshot clock events\n");
+ timer8_stop(p);
+ timer8_clock_event_start(p, ONESHOT);
+
+ return 0;
}
static int timer8_clock_event_next(unsigned long delta,
@@ -199,7 +202,7 @@ static int timer8_clock_event_next(unsigned long delta,
{
struct timer8_priv *p = ced_to_priv(ced);
- BUG_ON(ced->mode != CLOCK_EVT_MODE_ONESHOT);
+ BUG_ON(!clockevent_state_oneshot(ced));
timer8_set_next(p, delta - 1);
return 0;
@@ -246,7 +249,9 @@ static int timer8_setup(struct timer8_priv *p,
p->ced.rating = 200;
p->ced.cpumask = cpumask_of(0);
p->ced.set_next_event = timer8_clock_event_next;
- p->ced.set_mode = timer8_clock_event_mode;
+ p->ced.set_state_shutdown = timer8_clock_event_shutdown;
+ p->ced.set_state_periodic = timer8_clock_event_periodic;
+ p->ced.set_state_oneshot = timer8_clock_event_oneshot;
ret = setup_irq(irq, &p->irqaction);
if (ret < 0) {