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Commit 677e6fe0 authored by Viresh Kumar's avatar Viresh Kumar Committed by Daniel Lezcano
Browse files

c6x/timer64: Migrate to new 'set-state' interface 



Migrate c6x 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.

We weren't doing anything in ->set_mode(RESUME) and so tick_resume()
isn't implemented.

Cc: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: linux-c6x-dev@linux-c6x.org
Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
parent 067f9621

arch/c6x/platforms/timer64.c

+27 −25
Original line number Diff line number Diff line
@@ -126,34 +126,36 @@ static int next_event(unsigned long delta, 
	return 0;

}



static void set_clock_mode(enum clock_event_mode mode,

			   struct clock_event_device *evt)

static int set_periodic(struct clock_event_device *evt)

{

	switch (mode) {

	case CLOCK_EVT_MODE_PERIODIC:

	timer64_enable();

	timer64_mode = TIMER64_MODE_PERIODIC;

	timer64_config(TIMER64_RATE / HZ);

		break;

	case CLOCK_EVT_MODE_ONESHOT:

	return 0;

}



static int set_oneshot(struct clock_event_device *evt)

{

	timer64_enable();

	timer64_mode = TIMER64_MODE_ONE_SHOT;

		break;

	case CLOCK_EVT_MODE_UNUSED:

	case CLOCK_EVT_MODE_SHUTDOWN:

	return 0;

}



static int shutdown(struct clock_event_device *evt)

{

	timer64_mode = TIMER64_MODE_DISABLED;

	timer64_disable();

		break;

	case CLOCK_EVT_MODE_RESUME:

		break;

	}

	return 0;

}



static struct clock_event_device t64_clockevent_device = {

	.name			= "TIMER64_EVT32_TIMER",

	.features	= CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_PERIODIC,

	.features		= CLOCK_EVT_FEAT_ONESHOT |

				  CLOCK_EVT_FEAT_PERIODIC,

	.rating			= 200,

	.set_mode	= set_clock_mode,

	.set_state_shutdown	= shutdown,

	.set_state_periodic	= set_periodic,

	.set_state_oneshot	= set_oneshot,

	.set_next_event		= next_event,

};