[PATCH 07/41] clocksource: fsl_ftm: Migrate to new 'set-state' interface

From: Viresh Kumar
Date: Thu Jun 18 2015 - 07:07:53 EST


Migrate fsl_ftm 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: Xiubo Li <Li.Xiubo@xxxxxxxxxxxxx>
Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
---
drivers/clocksource/fsl_ftm_timer.c | 35 +++++++++++++++++------------------
1 file changed, 17 insertions(+), 18 deletions(-)

diff --git a/drivers/clocksource/fsl_ftm_timer.c b/drivers/clocksource/fsl_ftm_timer.c
index 454227d4f895..ef434699c80a 100644
--- a/drivers/clocksource/fsl_ftm_timer.c
+++ b/drivers/clocksource/fsl_ftm_timer.c
@@ -153,19 +153,16 @@ static int ftm_set_next_event(unsigned long delta,
return 0;
}

-static void ftm_set_mode(enum clock_event_mode mode,
- struct clock_event_device *evt)
+static int ftm_set_oneshot(struct clock_event_device *evt)
{
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- ftm_set_next_event(priv->periodic_cyc, evt);
- break;
- case CLOCK_EVT_MODE_ONESHOT:
- ftm_counter_disable(priv->clkevt_base);
- break;
- default:
- return;
- }
+ ftm_counter_disable(priv->clkevt_base);
+ return 0;
+}
+
+static int ftm_set_periodic(struct clock_event_device *evt)
+{
+ ftm_set_next_event(priv->periodic_cyc, evt);
+ return 0;
}

static irqreturn_t ftm_evt_interrupt(int irq, void *dev_id)
@@ -174,7 +171,7 @@ static irqreturn_t ftm_evt_interrupt(int irq, void *dev_id)

ftm_irq_acknowledge(priv->clkevt_base);

- if (likely(evt->mode == CLOCK_EVT_MODE_ONESHOT)) {
+ if (likely(clockevent_state_oneshot(evt))) {
ftm_irq_disable(priv->clkevt_base);
ftm_counter_disable(priv->clkevt_base);
}
@@ -185,11 +182,13 @@ static irqreturn_t ftm_evt_interrupt(int irq, void *dev_id)
}

static struct clock_event_device ftm_clockevent = {
- .name = "Freescale ftm timer",
- .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
- .set_mode = ftm_set_mode,
- .set_next_event = ftm_set_next_event,
- .rating = 300,
+ .name = "Freescale ftm timer",
+ .features = CLOCK_EVT_FEAT_PERIODIC |
+ CLOCK_EVT_FEAT_ONESHOT,
+ .set_state_periodic = ftm_set_periodic,
+ .set_state_oneshot = ftm_set_oneshot,
+ .set_next_event = ftm_set_next_event,
+ .rating = 300,
};

static struct irqaction ftm_timer_irq = {
--
2.4.0

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