diff options
Diffstat (limited to 'arch/arm/mach-at91/at91sam926x_time.c')
| -rw-r--r-- | arch/arm/mach-at91/at91sam926x_time.c | 53 |
1 files changed, 27 insertions, 26 deletions
diff --git a/arch/arm/mach-at91/at91sam926x_time.c b/arch/arm/mach-at91/at91sam926x_time.c index 358412f1f5f..3a4bc2e1a65 100644 --- a/arch/arm/mach-at91/at91sam926x_time.c +++ b/arch/arm/mach-at91/at91sam926x_time.c @@ -104,12 +104,38 @@ pit_clkevt_mode(enum clock_event_mode mode, struct clock_event_device *dev) } } +static void at91sam926x_pit_suspend(struct clock_event_device *cedev) +{ + /* Disable timer */ + pit_write(AT91_PIT_MR, 0); +} + +static void at91sam926x_pit_reset(void) +{ + /* Disable timer and irqs */ + pit_write(AT91_PIT_MR, 0); + + /* Clear any pending interrupts, wait for PIT to stop counting */ + while (PIT_CPIV(pit_read(AT91_PIT_PIVR)) != 0) + cpu_relax(); + + /* Start PIT but don't enable IRQ */ + pit_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN); +} + +static void at91sam926x_pit_resume(struct clock_event_device *cedev) +{ + at91sam926x_pit_reset(); +} + static struct clock_event_device pit_clkevt = { .name = "pit", .features = CLOCK_EVT_FEAT_PERIODIC, .shift = 32, .rating = 100, .set_mode = pit_clkevt_mode, + .suspend = at91sam926x_pit_suspend, + .resume = at91sam926x_pit_resume, }; @@ -150,19 +176,6 @@ static struct irqaction at91sam926x_pit_irq = { .irq = NR_IRQS_LEGACY + AT91_ID_SYS, }; -static void at91sam926x_pit_reset(void) -{ - /* Disable timer and irqs */ - pit_write(AT91_PIT_MR, 0); - - /* Clear any pending interrupts, wait for PIT to stop counting */ - while (PIT_CPIV(pit_read(AT91_PIT_PIVR)) != 0) - cpu_relax(); - - /* Start PIT but don't enable IRQ */ - pit_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN); -} - #ifdef CONFIG_OF static struct of_device_id pit_timer_ids[] = { { .compatible = "atmel,at91sam9260-pit" }, @@ -211,7 +224,7 @@ static int __init of_at91sam926x_pit_init(void) /* * Set up both clocksource and clockevent support. */ -static void __init at91sam926x_pit_init(void) +void __init at91sam926x_pit_init(void) { unsigned long pit_rate; unsigned bits; @@ -250,12 +263,6 @@ static void __init at91sam926x_pit_init(void) clockevents_register_device(&pit_clkevt); } -static void at91sam926x_pit_suspend(void) -{ - /* Disable timer */ - pit_write(AT91_PIT_MR, 0); -} - void __init at91sam926x_ioremap_pit(u32 addr) { #if defined(CONFIG_OF) @@ -272,9 +279,3 @@ void __init at91sam926x_ioremap_pit(u32 addr) if (!pit_base_addr) panic("Impossible to ioremap PIT\n"); } - -struct sys_timer at91sam926x_timer = { - .init = at91sam926x_pit_init, - .suspend = at91sam926x_pit_suspend, - .resume = at91sam926x_pit_reset, -}; |