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Commit 397d08b0 authored by Viresh Kumar's avatar Viresh Kumar Committed by Ralf Baechle
Browse files

MIPS: sni: Migrate to new 'set-state' interface 



Migrate sni 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.

Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-mips@linux-mips.org
Cc: linaro-kernel@lists.linaro.org
Cc: Thomas Gleixner <tglx@linutronix.de>
Patchwork: https://patchwork.linux-mips.org/patch/10612/


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 0c16240a

arch/mips/sni/time.c

+19 −30
Original line number Diff line number Diff line
@@ -14,11 +14,8 @@ 
#define SNI_COUNTER2_DIV	64

#define SNI_COUNTER0_DIV	((SNI_CLOCK_TICK_RATE / SNI_COUNTER2_DIV) / HZ)



static void a20r_set_mode(enum clock_event_mode mode,

			  struct clock_event_device *evt)

static int a20r_set_periodic(struct clock_event_device *evt)

{

	switch (mode) {

	case CLOCK_EVT_MODE_PERIODIC:

	*(volatile u8 *)(A20R_PT_CLOCK_BASE + 12) = 0x34;

	wmb();

	*(volatile u8 *)(A20R_PT_CLOCK_BASE + 0) = SNI_COUNTER0_DIV;
@@ -32,15 +29,7 @@ static void a20r_set_mode(enum clock_event_mode mode, 
	wmb();

	*(volatile u8 *)(A20R_PT_CLOCK_BASE + 8) = SNI_COUNTER2_DIV >> 8;

	wmb();



		break;

	case CLOCK_EVT_MODE_ONESHOT:

	case CLOCK_EVT_MODE_UNUSED:

	case CLOCK_EVT_MODE_SHUTDOWN:

		break;

	case CLOCK_EVT_MODE_RESUME:

		break;

	}

	return 0;

}



static struct clock_event_device a20r_clockevent_device = {
@@ -51,7 +40,7 @@ static struct clock_event_device a20r_clockevent_device = { 


	.rating			= 300,

	.irq			= SNI_A20R_IRQ_TIMER,

	.set_mode	= a20r_set_mode,

	.set_state_periodic	= a20r_set_periodic,

};



static irqreturn_t a20r_interrupt(int irq, void *dev_id)