serial: sc16is7xx: Switch to use device_get_match_data()

Instead of open coded variants, switch to direct use of
device_get_match_data().
Tested-By: Georgii Staroselskii <georgii.staroselskii@emlid.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/sc16is7xx.c

@@ -14,9 +14,9 @@
 #include <linux/device.h>
 #include <linux/gpio/driver.h>
 #include <linux/i2c.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/property.h>
 #include <linux/regmap.h>
 #include <linux/serial_core.h>
@@ -1393,13 +1393,9 @@ static int sc16is7xx_spi_probe(struct spi_device *spi)
 		return ret;
 
 	if (spi->dev.of_node) {
-		const struct of_device_id *of_id =
-			of_match_device(sc16is7xx_dt_ids, &spi->dev);
-
-		if (!of_id)
+		devtype = device_get_match_data(&spi->dev);
+		if (!devtype)
 			return -ENODEV;
-
-		devtype = (struct sc16is7xx_devtype *)of_id->data;
 	} else {
 		const struct spi_device_id *id_entry = spi_get_device_id(spi);
 
@@ -1454,13 +1450,9 @@ static int sc16is7xx_i2c_probe(struct i2c_client *i2c,
 	struct regmap *regmap;
 
 	if (i2c->dev.of_node) {
-		const struct of_device_id *of_id =
-				of_match_device(sc16is7xx_dt_ids, &i2c->dev);
-
-		if (!of_id)
+		devtype = device_get_match_data(&i2c->dev);
+		if (!devtype)
 			return -ENODEV;
-
-		devtype = (struct sc16is7xx_devtype *)of_id->data;
 	} else {
 		devtype = (struct sc16is7xx_devtype *)id->driver_data;
 		flags = IRQF_TRIGGER_FALLING;