rtc: pcf85363: use IRQ flags obtained fromfwnode

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.

Link: https://lore.kernel.org/r/20230123200217.1236011-8-alexandre.belloni@bootlin.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

drivers/rtc/rtc-pcf85363.c

@@ -400,12 +400,17 @@ static int pcf85363_probe(struct i2c_client *client)
 	clear_bit(RTC_FEATURE_ALARM, pcf85363->rtc->features);
 
 	if (client->irq > 0) {
+		unsigned long irqflags = IRQF_TRIGGER_LOW;
+
+		if (dev_fwnode(&client->dev))
+			irqflags = 0;
+
 		regmap_write(pcf85363->regmap, CTRL_FLAGS, 0);
 		regmap_update_bits(pcf85363->regmap, CTRL_PIN_IO,
 				   PIN_IO_INTA_OUT, PIN_IO_INTAPM);
 		ret = devm_request_threaded_irq(&client->dev, client->irq,
 						NULL, pcf85363_rtc_handle_irq,
-						IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+						irqflags | IRQF_ONESHOT,
 						"pcf85363", client);
 		if (ret)
 			dev_warn(&client->dev, "unable to request IRQ, alarms disabled\n");