linux-kernel - [RESEND PATCH 4/6] counter: interrupt-cnt: add counter_push

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Message-Id: <9da3460113b5092e8658e12f23578567aab7cc5f.1647373009.git.vilhelm.gray@gmail.com>
Date:   Tue, 15 Mar 2022 15:38:55 -0400
From:   William Breathitt Gray <vilhelm.gray@...il.com>
To:     gregkh@...uxfoundation.org
Cc:     linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org,
        Oleksij Rempel <o.rempel@...gutronix.de>,
        William Breathitt Gray <vilhelm.gray@...il.com>
Subject: [RESEND PATCH 4/6] counter: interrupt-cnt: add counter_push_event()

From: Oleksij Rempel <o.rempel@...gutronix.de>

Add counter_push_event() to notify user space about new pulses

Signed-off-by: Oleksij Rempel <o.rempel@...gutronix.de>
Link: https://lore.kernel.org/r/20220203135727.2374052-3-o.rempel@pengutronix.de
Signed-off-by: William Breathitt Gray <vilhelm.gray@...il.com>
---
 drivers/counter/interrupt-cnt.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/counter/interrupt-cnt.c b/drivers/counter/interrupt-cnt.c
index 9e99702470c2..3b13f56bbb11 100644
--- a/drivers/counter/interrupt-cnt.c
+++ b/drivers/counter/interrupt-cnt.c
@@ -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;
 
-- 
2.35.1