linux-kernel - [PATCH 07/12] rtc: pcf8523: use IRQ flags obtained from fwnode

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Message-Id: <20230123200217.1236011-7-alexandre.belloni@bootlin.com>
Date:   Mon, 23 Jan 2023 21:02:12 +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 07/12] rtc: pcf8523: 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-pcf8523.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-pcf8523.c b/drivers/rtc/rtc-pcf8523.c
index 92de99f11a7a..2e111cdb94f7 100644
--- a/drivers/rtc/rtc-pcf8523.c
+++ b/drivers/rtc/rtc-pcf8523.c
@@ -445,13 +445,18 @@ static int pcf8523_probe(struct i2c_client *client)
 	clear_bit(RTC_FEATURE_UPDATE_INTERRUPT, rtc->features);
 
 	if (client->irq > 0) {
+		unsigned long irqflags = IRQF_TRIGGER_LOW;
+
+		if (dev_fwnode(&client->dev))
+			irqflags = 0;
+
 		err = regmap_write(pcf8523->regmap, PCF8523_TMR_CLKOUT_CTRL, 0x38);
 		if (err < 0)
 			return err;
 
 		err = devm_request_threaded_irq(&client->dev, client->irq,
 						NULL, pcf8523_irq,
-						IRQF_SHARED | IRQF_ONESHOT | IRQF_TRIGGER_LOW,
+						IRQF_SHARED | IRQF_ONESHOT | irqflags,
 						dev_name(&rtc->dev), pcf8523);
 		if (err)
 			return err;
-- 
2.39.1