hwmon: (nct6775-i2c) Use i2c_get_match_data()

Use preferred i2c_get_match_data() instead of of_match_device() and
i2c_match_id() to get the driver match data. With this, adjust the
includes to explicitly include the correct headers.

Adjust the 'kinds' enum to not use 0, so that no match data can be
distinguished from a valid enum value.
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20231115205703.3730448-2-robh@kernel.org
[groeck: Use double cast for i2c_get_match_data() to make clang happy]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

drivers/hwmon/nct6775-i2c.c

@@ -21,7 +21,7 @@
 #include <linux/hwmon.h>
 #include <linux/hwmon-sysfs.h>
 #include <linux/err.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/regmap.h>
 #include "nct6775.h"
 
@@ -155,23 +155,13 @@ static const struct regmap_config nct6775_i2c_regmap_config = {
 static int nct6775_i2c_probe(struct i2c_client *client)
 {
 	struct nct6775_data *data;
-	const struct of_device_id *of_id;
-	const struct i2c_device_id *i2c_id;
 	struct device *dev = &client->dev;
 
-	of_id = of_match_device(nct6775_i2c_of_match, dev);
-	i2c_id = i2c_match_id(nct6775_i2c_id, client);
-
-	if (of_id && (unsigned long)of_id->data != i2c_id->driver_data)
-		dev_notice(dev, "Device mismatch: %s in device tree, %s detected\n",
-			   of_id->name, i2c_id->name);
-
 	data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	data->kind = i2c_id->driver_data;
-
+	data->kind = (enum kinds)(uintptr_t)i2c_get_match_data(client);
 	data->read_only = true;
 	data->driver_data = client;
 	data->driver_init = nct6775_i2c_probe_init;

drivers/hwmon/nct6775.h

@@ -4,7 +4,7 @@
 
 #include <linux/types.h>
 
-enum kinds { nct6106, nct6116, nct6775, nct6776, nct6779, nct6791, nct6792,
+enum kinds { nct6106 = 1, nct6116, nct6775, nct6776, nct6779, nct6791, nct6792,
 	     nct6793, nct6795, nct6796, nct6797, nct6798, nct6799 };
 enum pwm_enable { off, manual, thermal_cruise, speed_cruise, sf3, sf4 };