Input: ads7846 - Fix usage of match data

device_get_match_data() returns the match data directly, fix
this up and fix the probe crash.

Fixes: 767d833 ("Input: ads7846 - Convert to use software nodes")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20230606191304.3804174-1-linus.walleij@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Author: Linus Walleij

drivers/input/touchscreen/ads7846.c

@@ -1117,20 +1117,13 @@ MODULE_DEVICE_TABLE(of, ads7846_dt_ids);
 static const struct ads7846_platform_data *ads7846_get_props(struct device *dev)
 {
 	struct ads7846_platform_data *pdata;
-	const struct platform_device_id *pdev_id;
 	u32 value;
 
-	pdev_id = device_get_match_data(dev);
-	if (!pdev_id) {
-		dev_err(dev, "Unknown device model\n");
-		return ERR_PTR(-EINVAL);
-	}
-
 	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
 	if (!pdata)
 		return ERR_PTR(-ENOMEM);
 
-	pdata->model = (unsigned long)pdev_id->driver_data;
+	pdata->model = (u32)device_get_match_data(dev);
 
 	device_property_read_u16(dev, "ti,vref-delay-usecs",
 				 &pdata->vref_delay_usecs);