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clockevents/drivers/cs5535: Migrate to new 'set-state' interface
Migrate cs5535 driver to the new 'set-state' interface provided by the 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. Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Andres Salomon <dilinger@queued.net> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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@ -42,7 +42,6 @@ MODULE_PARM_DESC(irq, "Which IRQ to use for the clock source MFGPT ticks.");
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* 256 128 .125 512.000
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*/
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static unsigned int cs5535_tick_mode = CLOCK_EVT_MODE_SHUTDOWN;
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static struct cs5535_mfgpt_timer *cs5535_event_clock;
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/* Selected from the table above */
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@ -77,15 +76,17 @@ static void start_timer(struct cs5535_mfgpt_timer *timer, uint16_t delta)
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MFGPT_SETUP_CNTEN | MFGPT_SETUP_CMP2);
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}
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static void mfgpt_set_mode(enum clock_event_mode mode,
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struct clock_event_device *evt)
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static int mfgpt_shutdown(struct clock_event_device *evt)
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{
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disable_timer(cs5535_event_clock);
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return 0;
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}
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if (mode == CLOCK_EVT_MODE_PERIODIC)
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start_timer(cs5535_event_clock, MFGPT_PERIODIC);
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cs5535_tick_mode = mode;
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static int mfgpt_set_periodic(struct clock_event_device *evt)
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{
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disable_timer(cs5535_event_clock);
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start_timer(cs5535_event_clock, MFGPT_PERIODIC);
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return 0;
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}
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static int mfgpt_next_event(unsigned long delta, struct clock_event_device *evt)
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@ -97,7 +98,10 @@ static int mfgpt_next_event(unsigned long delta, struct clock_event_device *evt)
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static struct clock_event_device cs5535_clockevent = {
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.name = DRV_NAME,
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.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
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.set_mode = mfgpt_set_mode,
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.set_state_shutdown = mfgpt_shutdown,
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.set_state_periodic = mfgpt_set_periodic,
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.set_state_oneshot = mfgpt_shutdown,
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.tick_resume = mfgpt_shutdown,
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.set_next_event = mfgpt_next_event,
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.rating = 250,
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};
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@ -113,7 +117,7 @@ static irqreturn_t mfgpt_tick(int irq, void *dev_id)
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/* Turn off the clock (and clear the event) */
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disable_timer(cs5535_event_clock);
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if (cs5535_tick_mode == CLOCK_EVT_MODE_SHUTDOWN)
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if (clockevent_state_shutdown(&cs5535_clockevent))
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return IRQ_HANDLED;
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/* Clear the counter */
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@ -121,7 +125,7 @@ static irqreturn_t mfgpt_tick(int irq, void *dev_id)
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/* Restart the clock in periodic mode */
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if (cs5535_tick_mode == CLOCK_EVT_MODE_PERIODIC)
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if (clockevent_state_periodic(&cs5535_clockevent))
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cs5535_mfgpt_write(cs5535_event_clock, MFGPT_REG_SETUP,
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MFGPT_SETUP_CNTEN | MFGPT_SETUP_CMP2);
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