diff options
Diffstat (limited to 'drivers/clocksource/timer-atmel-pit.c')
| -rw-r--r-- | drivers/clocksource/timer-atmel-pit.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/clocksource/timer-atmel-pit.c b/drivers/clocksource/timer-atmel-pit.c index d911c5dca8f1..a7abdb6638cd 100644 --- a/drivers/clocksource/timer-atmel-pit.c +++ b/drivers/clocksource/timer-atmel-pit.c @@ -96,15 +96,24 @@ static int pit_clkevt_shutdown(struct clock_event_device *dev) /* disable irq, leaving the clocksource active */ pit_write(data->base, AT91_PIT_MR, (data->cycle - 1) | AT91_PIT_PITEN); + free_irq(data->irq, data); return 0; } +static irqreturn_t at91sam926x_pit_interrupt(int irq, void *dev_id); /* * Clockevent device: interrupts every 1/HZ (== pit_cycles * MCK/16) */ static int pit_clkevt_set_periodic(struct clock_event_device *dev) { struct pit_data *data = clkevt_to_pit_data(dev); + int ret; + + ret = request_irq(data->irq, at91sam926x_pit_interrupt, + IRQF_SHARED | IRQF_TIMER | IRQF_IRQPOLL, + "at91_tick", data); + if (ret) + panic(pr_fmt("Unable to setup IRQ\n")); /* update clocksource counter */ data->cnt += data->cycle * PIT_PICNT(pit_read(data->base, AT91_PIT_PIVR)); @@ -181,7 +190,6 @@ static void __init at91sam926x_pit_common_init(struct pit_data *data) { unsigned long pit_rate; unsigned bits; - int ret; /* * Use our actual MCK to figure out how many MCK/16 ticks per @@ -206,13 +214,6 @@ static void __init at91sam926x_pit_common_init(struct pit_data *data) data->clksrc.flags = CLOCK_SOURCE_IS_CONTINUOUS; clocksource_register_hz(&data->clksrc, pit_rate); - /* Set up irq handler */ - ret = request_irq(data->irq, at91sam926x_pit_interrupt, - IRQF_SHARED | IRQF_TIMER | IRQF_IRQPOLL, - "at91_tick", data); - if (ret) - panic(pr_fmt("Unable to setup IRQ\n")); - /* Set up and register clockevents */ data->clkevt.name = "pit"; data->clkevt.features = CLOCK_EVT_FEAT_PERIODIC; |