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Commit a2b7e10d authored by Viresh Kumar's avatar Viresh Kumar Committed by Daniel Lezcano
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clockevents/drivers/mtk: Migrate to new 'set-state' interface 



Migrate mtk 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: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
parent 37ae2471

drivers/clocksource/mtk_timer.c

+14 −18
Original line number Diff line number Diff line
@@ -102,27 +102,20 @@ static void mtk_clkevt_time_start(struct mtk_clock_event_device *evt, 
	       evt->gpt_base + TIMER_CTRL_REG(timer));

}



static void mtk_clkevt_mode(enum clock_event_mode mode,

				struct clock_event_device *clk)

static int mtk_clkevt_shutdown(struct clock_event_device *clk)

{

	mtk_clkevt_time_stop(to_mtk_clk(clk), GPT_CLK_EVT);

	return 0;

}



static int mtk_clkevt_set_periodic(struct clock_event_device *clk)

{

	struct mtk_clock_event_device *evt = to_mtk_clk(clk);



	mtk_clkevt_time_stop(evt, GPT_CLK_EVT);



	switch (mode) {

	case CLOCK_EVT_MODE_PERIODIC:

	mtk_clkevt_time_setup(evt, evt->ticks_per_jiffy, GPT_CLK_EVT);

	mtk_clkevt_time_start(evt, true, GPT_CLK_EVT);

		break;

	case CLOCK_EVT_MODE_ONESHOT:

		/* Timer is enabled in set_next_event */

		break;

	case CLOCK_EVT_MODE_UNUSED:

	case CLOCK_EVT_MODE_SHUTDOWN:

	default:

		/* No more interrupts will occur as source is disabled */

		break;

	}

	return 0;

}



static int mtk_clkevt_next_event(unsigned long event,
@@ -196,7 +189,10 @@ static void __init mtk_timer_init(struct device_node *node) 
	evt->dev.name = "mtk_tick";

	evt->dev.rating = 300;

	evt->dev.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;

	evt->dev.set_mode = mtk_clkevt_mode;

	evt->dev.set_state_shutdown = mtk_clkevt_shutdown;

	evt->dev.set_state_periodic = mtk_clkevt_set_periodic;

	evt->dev.set_state_oneshot = mtk_clkevt_shutdown;

	evt->dev.tick_resume = mtk_clkevt_shutdown;

	evt->dev.set_next_event = mtk_clkevt_next_event;

	evt->dev.cpumask = cpu_possible_mask;