Commit 9325a3a8 authored by Viresh Kumar's avatar Viresh Kumar
Browse files

ARM/lpc32xx/timer: Migrate to new 'set-state' interface 



Migrate lpc32xx 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: Roland Stigge <stigge@antcom.de>
Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
parent 7cfa3c69

arch/arm/mach-lpc32xx/timer.c

+14 −26
Original line number Diff line number Diff line
@@ -43,28 +43,15 @@ static int lpc32xx_clkevt_next_event(unsigned long delta, 
	return 0;

}



static void lpc32xx_clkevt_mode(enum clock_event_mode mode,

    struct clock_event_device *dev)

static int lpc32xx_shutdown(struct clock_event_device *evt)

{

	switch (mode) {

	case CLOCK_EVT_MODE_PERIODIC:

		WARN_ON(1);

		break;



	case CLOCK_EVT_MODE_ONESHOT:

	case CLOCK_EVT_MODE_SHUTDOWN:

	/*

	 * Disable the timer. When using oneshot, we must also

	 * disable the timer to wait for the first call to

	 * set_next_event().

	 */

	__raw_writel(0, LPC32XX_TIMER_TCR(LPC32XX_TIMER0_BASE));

		break;



	case CLOCK_EVT_MODE_UNUSED:

	case CLOCK_EVT_MODE_RESUME:

		break;

	}

	return 0;

}



static struct clock_event_device lpc32xx_clkevt = {
@@ -72,7 +59,8 @@ static struct clock_event_device lpc32xx_clkevt = { 
	.features		= CLOCK_EVT_FEAT_ONESHOT,

	.rating			= 300,

	.set_next_event		= lpc32xx_clkevt_next_event,

	.set_mode	= lpc32xx_clkevt_mode,

	.set_state_shutdown	= lpc32xx_shutdown,

	.set_state_oneshot	= lpc32xx_shutdown,

};



static irqreturn_t lpc32xx_timer_interrupt(int irq, void *dev_id)