linux-kernel - [PATCH 09/12] rtc: pcf8563: use IRQ flags obtained from fwnode

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Message-Id: <20230123200217.1236011-9-alexandre.belloni@bootlin.com>
Date:   Mon, 23 Jan 2023 21:02:14 +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 09/12] rtc: pcf8563: 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-pcf8563.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-pcf8563.c b/drivers/rtc/rtc-pcf8563.c
index 0a7fd9478465..7e720472213c 100644
--- a/drivers/rtc/rtc-pcf8563.c
+++ b/drivers/rtc/rtc-pcf8563.c
@@ -558,9 +558,14 @@ static int pcf8563_probe(struct i2c_client *client)
 	pcf8563->rtc->set_start_time = true;
 
 	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, pcf8563_irq,
-				IRQF_SHARED | IRQF_ONESHOT | IRQF_TRIGGER_LOW,
+				IRQF_SHARED | IRQF_ONESHOT | irqflags,
 				pcf8563_driver.driver.name, client);
 		if (err) {
 			dev_err(&client->dev, "unable to request IRQ %d\n",
-- 
2.39.1