linux-kernel - [PATCH 12/12] rtc: rv8803: use IRQ flags obtained from fwnode

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Date:   Mon, 23 Jan 2023 21:02:17 +0100
From:   alexandre.belloni@...tlin.com
To:     Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc:     linux-rtc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 12/12] rtc: rv8803: use IRQ flags obtained from fwnode

From: Alexandre Belloni <alexandre.belloni@...tlin.com>

Allow the IRQ type to be passed from the device tree if available as there
may be components changing the trigger type of the interrupt between the
RTC and the IRQ controller.

Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
---
 drivers/rtc/rtc-rv8803.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-rv8803.c b/drivers/rtc/rtc-rv8803.c
index b581b6d5ad73..53d1de01b719 100644
--- a/drivers/rtc/rtc-rv8803.c
+++ b/drivers/rtc/rtc-rv8803.c
@@ -641,9 +641,14 @@ static int rv8803_probe(struct i2c_client *client)
 		return PTR_ERR(rv8803->rtc);
 
 	if (client->irq > 0) {
+		unsigned long irqflags = IRQF_TRIGGER_LOW;
+
+		if (dev_fwnode(&client->dev))
+			irqflags = 0;
+
 		err = devm_request_threaded_irq(&client->dev, client->irq,
 						NULL, rv8803_handle_irq,
-						IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+						irqflags | IRQF_ONESHOT,
 						"rv8803", client);
 		if (err) {
 			dev_warn(&client->dev, "unable to request IRQ, alarms disabled\n");
-- 
2.39.1