Commit a785fb39 authored by Viresh Kumar's avatar Viresh Kumar
Browse files

ARM/mmp/time: Migrate to new 'set-state' interface 



Migrate mmp 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) except of
local_irq_{save|restore}(), which isn't required and so ->tick_resume
isn't implemented.

Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
parent 9325a3a8

arch/arm/mach-mmp/time.c

+11 −18
Original line number Diff line number Diff line
@@ -124,24 +124,16 @@ static int timer_set_next_event(unsigned long delta, 
	return 0;

}



static void timer_set_mode(enum clock_event_mode mode,

			   struct clock_event_device *dev)

static int timer_set_shutdown(struct clock_event_device *evt)

{

	unsigned long flags;



	local_irq_save(flags);

	switch (mode) {

	case CLOCK_EVT_MODE_ONESHOT:

	case CLOCK_EVT_MODE_UNUSED:

	case CLOCK_EVT_MODE_SHUTDOWN:

	/* disable the matching interrupt */

	__raw_writel(0x00, mmp_timer_base + TMR_IER(0));

		break;

	case CLOCK_EVT_MODE_RESUME:

	case CLOCK_EVT_MODE_PERIODIC:

		break;

	}

	local_irq_restore(flags);



	return 0;

}



static struct clock_event_device ckevt = {
@@ -149,7 +141,8 @@ static struct clock_event_device ckevt = { 
	.features		= CLOCK_EVT_FEAT_ONESHOT,

	.rating			= 200,

	.set_next_event		= timer_set_next_event,

	.set_mode	= timer_set_mode,

	.set_state_shutdown	= timer_set_shutdown,

	.set_state_oneshot	= timer_set_shutdown,

};



static cycle_t clksrc_read(struct clocksource *cs)