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Commit 9b0af699 authored by Viresh Kumar's avatar Viresh Kumar Committed by Daniel Lezcano
Browse files

clockevents/drivers/nomadik-mtu: Migrate to new 'set-state' interface 



Migrate nomadik-mtu 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: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent eb8703e2

drivers/clocksource/nomadik-mtu.c

+30 −28
Original line number Diff line number Diff line
@@ -119,28 +119,27 @@ static void nmdk_clkevt_reset(void) 
	}

}



static void nmdk_clkevt_mode(enum clock_event_mode mode,

			     struct clock_event_device *dev)

static int nmdk_clkevt_shutdown(struct clock_event_device *evt)

{

	switch (mode) {

	case CLOCK_EVT_MODE_PERIODIC:

		clkevt_periodic = true;

		nmdk_clkevt_reset();

		break;

	case CLOCK_EVT_MODE_ONESHOT:

		clkevt_periodic = false;

		break;

	case CLOCK_EVT_MODE_SHUTDOWN:

	case CLOCK_EVT_MODE_UNUSED:

	writel(0, mtu_base + MTU_IMSC);

	/* disable timer */

	writel(0, mtu_base + MTU_CR(1));

	/* load some high default value */

	writel(0xffffffff, mtu_base + MTU_LR(1));

		break;

	case CLOCK_EVT_MODE_RESUME:

		break;

	return 0;

}



static int nmdk_clkevt_set_oneshot(struct clock_event_device *evt)

{

	clkevt_periodic = false;

	return 0;

}



static int nmdk_clkevt_set_periodic(struct clock_event_device *evt)

{

	clkevt_periodic = true;

	nmdk_clkevt_reset();

	return 0;

}



static void nmdk_clksrc_reset(void)
@@ -164,10 +163,13 @@ static void nmdk_clkevt_resume(struct clock_event_device *cedev) 


static struct clock_event_device nmdk_clkevt = {

	.name			= "mtu_1",

	.features	= CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_PERIODIC |

	.features		= CLOCK_EVT_FEAT_ONESHOT |

				  CLOCK_EVT_FEAT_PERIODIC |

				  CLOCK_EVT_FEAT_DYNIRQ,

	.rating			= 200,

	.set_mode	= nmdk_clkevt_mode,

	.set_state_shutdown	= nmdk_clkevt_shutdown,

	.set_state_periodic	= nmdk_clkevt_set_periodic,

	.set_state_oneshot	= nmdk_clkevt_set_oneshot,

	.set_next_event		= nmdk_clkevt_next,

	.resume			= nmdk_clkevt_resume,

};