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counter: interrupt-cnt: add counter_push_event() 

Add counter_push_event() to notify user space about new pulses

Link: https://lore.kernel.org/r/20220203135727.2374052-3-o.rempel@pengutronix.de
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Link: https://lore.kernel.org/r/9da3460113b5092e8658e12f23578567aab7cc5f.1647373009.git.vilhelm.gray@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Oleksij Rempel 2022-03-15 15:38:55 -04:00 committed by Greg Kroah-Hartman
parent 73799a8892
commit 257e3df40c
1 changed files with 5 additions and 2 deletions
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7
drivers/counter/interrupt-cnt.c
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@ -26,10 +26,13 @@ struct interrupt_cnt_priv {
static irqreturn_t interrupt_cnt_isr(int irq, void *dev_id)
{
struct interrupt_cnt_priv *priv = dev_id;
struct counter_device *counter = dev_id;
struct interrupt_cnt_priv *priv = counter_priv(counter);
atomic_inc(&priv->count);
counter_push_event(counter, COUNTER_EVENT_CHANGE_OF_STATE, 0);
return IRQ_HANDLED;
}
@ -209,7 +212,7 @@ static int interrupt_cnt_probe(struct platform_device *pdev)
irq_set_status_flags(priv->irq, IRQ_NOAUTOEN);
ret = devm_request_irq(dev, priv->irq, interrupt_cnt_isr,
IRQF_TRIGGER_RISING | IRQF_NO_THREAD,
dev_name(dev), priv);
dev_name(dev), counter);
if (ret)
return ret;