--- zzzz-none-000/linux-3.10.107/drivers/hwmon/adm1021.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/hwmon/adm1021.c	2021-02-04 17:41:59.000000000 +0000
@@ -79,9 +79,11 @@
 
 /* Each client has this additional data */
 struct adm1021_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 	enum chips type;
 
+	const struct attribute_group *groups[3];
+
 	struct mutex update_lock;
 	char valid;		/* !=0 if following fields are valid */
 	char low_power;		/* !=0 if device in low power mode */
@@ -96,43 +98,63 @@
 	u8 remote_temp_offset_prec;
 };
 
-static int adm1021_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id);
-static int adm1021_detect(struct i2c_client *client,
-			  struct i2c_board_info *info);
-static void adm1021_init_client(struct i2c_client *client);
-static int adm1021_remove(struct i2c_client *client);
-static struct adm1021_data *adm1021_update_device(struct device *dev);
-
 /* (amalysh) read only mode, otherwise any limit's writing confuse BIOS */
 static bool read_only;
 
+static struct adm1021_data *adm1021_update_device(struct device *dev)
+{
+	struct adm1021_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 
-static const struct i2c_device_id adm1021_id[] = {
-	{ "adm1021", adm1021 },
-	{ "adm1023", adm1023 },
-	{ "max1617", max1617 },
-	{ "max1617a", max1617a },
-	{ "thmc10", thmc10 },
-	{ "lm84", lm84 },
-	{ "gl523sm", gl523sm },
-	{ "mc1066", mc1066 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, adm1021_id);
+	mutex_lock(&data->update_lock);
 
-/* This is the driver that will be inserted */
-static struct i2c_driver adm1021_driver = {
-	.class		= I2C_CLASS_HWMON,
-	.driver = {
-		.name	= "adm1021",
-	},
-	.probe		= adm1021_probe,
-	.remove		= adm1021_remove,
-	.id_table	= adm1021_id,
-	.detect		= adm1021_detect,
-	.address_list	= normal_i2c,
-};
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+	    || !data->valid) {
+		int i;
+
+		dev_dbg(dev, "Starting adm1021 update\n");
+
+		for (i = 0; i < 2; i++) {
+			data->temp[i] = 1000 *
+				(s8) i2c_smbus_read_byte_data(
+					client, ADM1021_REG_TEMP(i));
+			data->temp_max[i] = 1000 *
+				(s8) i2c_smbus_read_byte_data(
+					client, ADM1021_REG_TOS_R(i));
+			if (data->type != lm84) {
+				data->temp_min[i] = 1000 *
+				  (s8) i2c_smbus_read_byte_data(client,
+							ADM1021_REG_THYST_R(i));
+			}
+		}
+		data->alarms = i2c_smbus_read_byte_data(client,
+						ADM1021_REG_STATUS) & 0x7c;
+		if (data->type == adm1023) {
+			/*
+			 * The ADM1023 provides 3 extra bits of precision for
+			 * the remote sensor in extra registers.
+			 */
+			data->temp[1] += 125 * (i2c_smbus_read_byte_data(
+				client, ADM1023_REG_REM_TEMP_PREC) >> 5);
+			data->temp_max[1] += 125 * (i2c_smbus_read_byte_data(
+				client, ADM1023_REG_REM_TOS_PREC) >> 5);
+			data->temp_min[1] += 125 * (i2c_smbus_read_byte_data(
+				client, ADM1023_REG_REM_THYST_PREC) >> 5);
+			data->remote_temp_offset =
+				i2c_smbus_read_byte_data(client,
+						ADM1023_REG_REM_OFFSET);
+			data->remote_temp_offset_prec =
+				i2c_smbus_read_byte_data(client,
+						ADM1023_REG_REM_OFFSET_PREC);
+		}
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
 
 static ssize_t show_temp(struct device *dev,
 			 struct device_attribute *devattr, char *buf)
@@ -182,8 +204,8 @@
 			    const char *buf, size_t count)
 {
 	int index = to_sensor_dev_attr(devattr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1021_data *data = i2c_get_clientdata(client);
+	struct adm1021_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long temp;
 	int reg_val, err;
 
@@ -208,8 +230,8 @@
 			    const char *buf, size_t count)
 {
 	int index = to_sensor_dev_attr(devattr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1021_data *data = i2c_get_clientdata(client);
+	struct adm1021_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long temp;
 	int reg_val, err;
 
@@ -240,8 +262,8 @@
 			     struct device_attribute *devattr,
 			     const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1021_data *data = i2c_get_clientdata(client);
+	struct adm1021_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	char low_power;
 	unsigned long val;
 	int err;
@@ -286,15 +308,11 @@
 
 static struct attribute *adm1021_attributes[] = {
 	&sensor_dev_attr_temp1_max.dev_attr.attr,
-	&sensor_dev_attr_temp1_min.dev_attr.attr,
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
 	&sensor_dev_attr_temp2_max.dev_attr.attr,
-	&sensor_dev_attr_temp2_min.dev_attr.attr,
 	&sensor_dev_attr_temp2_input.dev_attr.attr,
 	&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
-	&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
 	&sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
-	&sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
 	&sensor_dev_attr_temp2_fault.dev_attr.attr,
 	&dev_attr_alarms.attr,
 	&dev_attr_low_power.attr,
@@ -305,6 +323,18 @@
 	.attrs = adm1021_attributes,
 };
 
+static struct attribute *adm1021_min_attributes[] = {
+	&sensor_dev_attr_temp1_min.dev_attr.attr,
+	&sensor_dev_attr_temp2_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group adm1021_min_group = {
+	.attrs = adm1021_min_attributes,
+};
+
 /* Return 0 if detection is successful, -ENODEV otherwise */
 static int adm1021_detect(struct i2c_client *client,
 			  struct i2c_board_info *info)
@@ -403,18 +433,27 @@
 	return 0;
 }
 
+static void adm1021_init_client(struct i2c_client *client)
+{
+	/* Enable ADC and disable suspend mode */
+	i2c_smbus_write_byte_data(client, ADM1021_REG_CONFIG_W,
+		i2c_smbus_read_byte_data(client, ADM1021_REG_CONFIG_R) & 0xBF);
+	/* Set Conversion rate to 1/sec (this can be tinkered with) */
+	i2c_smbus_write_byte_data(client, ADM1021_REG_CONV_RATE_W, 0x04);
+}
+
 static int adm1021_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
 	struct adm1021_data *data;
-	int err;
+	struct device *hwmon_dev;
 
-	data = devm_kzalloc(&client->dev, sizeof(struct adm1021_data),
-			    GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(struct adm1021_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, data);
+	data->client = client;
 	data->type = id->driver_data;
 	mutex_init(&data->update_lock);
 
@@ -422,95 +461,39 @@
 	if (data->type != lm84 && !read_only)
 		adm1021_init_client(client);
 
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&client->dev.kobj, &adm1021_group);
-	if (err)
-		return err;
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto error;
-	}
-
-	return 0;
+	data->groups[0] = &adm1021_group;
+	if (data->type != lm84)
+		data->groups[1] = &adm1021_min_group;
 
-error:
-	sysfs_remove_group(&client->dev.kobj, &adm1021_group);
-	return err;
-}
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data, data->groups);
 
-static void adm1021_init_client(struct i2c_client *client)
-{
-	/* Enable ADC and disable suspend mode */
-	i2c_smbus_write_byte_data(client, ADM1021_REG_CONFIG_W,
-		i2c_smbus_read_byte_data(client, ADM1021_REG_CONFIG_R) & 0xBF);
-	/* Set Conversion rate to 1/sec (this can be tinkered with) */
-	i2c_smbus_write_byte_data(client, ADM1021_REG_CONV_RATE_W, 0x04);
-}
-
-static int adm1021_remove(struct i2c_client *client)
-{
-	struct adm1021_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &adm1021_group);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
-static struct adm1021_data *adm1021_update_device(struct device *dev)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1021_data *data = i2c_get_clientdata(client);
-
-	mutex_lock(&data->update_lock);
-
-	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
-	    || !data->valid) {
-		int i;
-
-		dev_dbg(&client->dev, "Starting adm1021 update\n");
-
-		for (i = 0; i < 2; i++) {
-			data->temp[i] = 1000 *
-				(s8) i2c_smbus_read_byte_data(
-					client, ADM1021_REG_TEMP(i));
-			data->temp_max[i] = 1000 *
-				(s8) i2c_smbus_read_byte_data(
-					client, ADM1021_REG_TOS_R(i));
-			data->temp_min[i] = 1000 *
-				(s8) i2c_smbus_read_byte_data(
-					client, ADM1021_REG_THYST_R(i));
-		}
-		data->alarms = i2c_smbus_read_byte_data(client,
-						ADM1021_REG_STATUS) & 0x7c;
-		if (data->type == adm1023) {
-			/*
-			 * The ADM1023 provides 3 extra bits of precision for
-			 * the remote sensor in extra registers.
-			 */
-			data->temp[1] += 125 * (i2c_smbus_read_byte_data(
-				client, ADM1023_REG_REM_TEMP_PREC) >> 5);
-			data->temp_max[1] += 125 * (i2c_smbus_read_byte_data(
-				client, ADM1023_REG_REM_TOS_PREC) >> 5);
-			data->temp_min[1] += 125 * (i2c_smbus_read_byte_data(
-				client, ADM1023_REG_REM_THYST_PREC) >> 5);
-			data->remote_temp_offset =
-				i2c_smbus_read_byte_data(client,
-						ADM1023_REG_REM_OFFSET);
-			data->remote_temp_offset_prec =
-				i2c_smbus_read_byte_data(client,
-						ADM1023_REG_REM_OFFSET_PREC);
-		}
-		data->last_updated = jiffies;
-		data->valid = 1;
-	}
-
-	mutex_unlock(&data->update_lock);
+static const struct i2c_device_id adm1021_id[] = {
+	{ "adm1021", adm1021 },
+	{ "adm1023", adm1023 },
+	{ "max1617", max1617 },
+	{ "max1617a", max1617a },
+	{ "thmc10", thmc10 },
+	{ "lm84", lm84 },
+	{ "gl523sm", gl523sm },
+	{ "mc1066", mc1066 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, adm1021_id);
 
-	return data;
-}
+static struct i2c_driver adm1021_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "adm1021",
+	},
+	.probe		= adm1021_probe,
+	.id_table	= adm1021_id,
+	.detect		= adm1021_detect,
+	.address_list	= normal_i2c,
+};
 
 module_i2c_driver(adm1021_driver);