[PATCH v3 1/3] clocksource: timer-keystone: introduce clocksource driver for Keystone
Stephen Boyd
sboyd at codeaurora.org
Thu Dec 26 13:22:54 EST 2013
On 12/25, Ivan Khoronzhuk wrote:
> +
> + /* enable timer interrupts */
> + keystone_timer_writel(INTCTLSTAT_ENINT_MASK, INTCTLSTAT);
> +
> + error = request_irq(irq, keystone_timer_interrupt, IRQF_TIMER,
> + TIMER_NAME, event_dev);
> + if (error) {
> + pr_err("%s: failed to setup irq\n", __func__);
> + goto err;
> + }
> +
> + /* setup clockevent */
> + event_dev->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;
> + event_dev->set_next_event = keystone_set_next_event;
> + event_dev->set_mode = keystone_set_mode;
> + event_dev->cpumask = cpu_all_mask;
> + event_dev->owner = THIS_MODULE;
> + event_dev->name = TIMER_NAME;
> + event_dev->irq = irq;
> +
> + clockevents_config_and_register(event_dev, rate, 1, ULONG_MAX);
> +
I hope you don't get an interrupt before you register the
clockevent. You might want to reorder the interrupt request and
the clockevent registration so that it isn't a problem. Other
than that you can have my
Reviewed-by: Stephen Boyd <sboyd at codeaurora.org>
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
hosted by The Linux Foundation
More information about the linux-arm-kernel
mailing list