nfc: s3fwrn5: let core configure the interrupt trigger

If interrupt trigger is not set when requesting the interrupt, the core
will take care of reading trigger type from Devicetree.  There is no
point to do it in the driver.
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20201210211824.214949-1-krzk@kernel.orgSigned-off-by: NJakub Kicinski <kuba@kernel.org>

drivers/nfc/s3fwrn5/i2c.c

@@ -179,8 +179,6 @@ static int s3fwrn5_i2c_probe(struct i2c_client *client,
 				  const struct i2c_device_id *id)
 {
 	struct s3fwrn5_i2c_phy *phy;
-	struct irq_data *irq_data;
-	unsigned long irqflags;
 	int ret;
 
 	phy = devm_kzalloc(&client->dev, sizeof(*phy), GFP_KERNEL);
@@ -214,11 +212,8 @@ static int s3fwrn5_i2c_probe(struct i2c_client *client,
 	if (ret < 0)
 		return ret;
 
-	irq_data = irq_get_irq_data(client->irq);
-	irqflags = irqd_get_trigger_type(irq_data) | IRQF_ONESHOT;
-
 	ret = devm_request_threaded_irq(&client->dev, phy->i2c_dev->irq, NULL,
-		s3fwrn5_i2c_irq_thread_fn, irqflags,
+		s3fwrn5_i2c_irq_thread_fn, IRQF_ONESHOT,
 		S3FWRN5_I2C_DRIVER_NAME, phy);
 	if (ret)
 		s3fwrn5_remove(phy->common.ndev);