linux-kernel - [PATCH v2 2/3] hwmon: nct6775-i2c: Use i2c_get_match

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Date:   Wed, 15 Nov 2023 14:57:01 -0600
From:   Rob Herring <robh@...nel.org>
To:     Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Zev Weiss <zev@...ilderbeest.net>
Cc:     linux-hwmon@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/3] 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@...nel.org>
---
v2:
 - Split up per driver
---
 drivers/hwmon/nct6775-i2c.c | 14 ++------------
 drivers/hwmon/nct6775.h     |  2 +-
 2 files changed, 3 insertions(+), 13 deletions(-)

diff --git a/drivers/hwmon/nct6775-i2c.c b/drivers/hwmon/nct6775-i2c.c
index 87a4fc78c571..63b669d511f4 100644
--- a/drivers/hwmon/nct6775-i2c.c
+++ b/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)i2c_get_match_data(client);
 	data->read_only = true;
 	data->driver_data = client;
 	data->driver_init = nct6775_i2c_probe_init;
diff --git a/drivers/hwmon/nct6775.h b/drivers/hwmon/nct6775.h
index 296eff99d003..d31e7a030216 100644
--- a/drivers/hwmon/nct6775.h
+++ b/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 };
 
-- 
2.42.0