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Commit 40089a9f authored by Guenter Roeck's avatar Guenter Roeck
Browse files

hwmon: (max1619) Rearrange code to avoid forward declarations 



Forward declarations are unnecessary and easy to avoid, so rearrange
code and drop them.

No functional change.

Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent b09489ec

drivers/hwmon/max1619.c

+69 −89
Original line number Diff line number Diff line
@@ -71,40 +71,6 @@ static int temp_to_reg(int val) 
	return (val < 0 ? val+0x100*1000 : val) / 1000;

}



/*

 * Functions declaration

 */



static int max1619_probe(struct i2c_client *client,

			 const struct i2c_device_id *id);

static int max1619_detect(struct i2c_client *client,

			  struct i2c_board_info *info);

static void max1619_init_client(struct i2c_client *client);

static int max1619_remove(struct i2c_client *client);

static struct max1619_data *max1619_update_device(struct device *dev);



/*

 * Driver data (common to all clients)

 */



static const struct i2c_device_id max1619_id[] = {

	{ "max1619", 0 },

	{ }

};

MODULE_DEVICE_TABLE(i2c, max1619_id);



static struct i2c_driver max1619_driver = {

	.class		= I2C_CLASS_HWMON,

	.driver = {

		.name	= "max1619",

	},

	.probe		= max1619_probe,

	.remove		= max1619_remove,

	.id_table	= max1619_id,

	.detect		= max1619_detect,

	.address_list	= normal_i2c,

};



/*

 * Client data (each client gets its own)

 */
@@ -123,6 +89,44 @@ struct max1619_data { 
	u8 alarms;

};



static struct max1619_data *max1619_update_device(struct device *dev)

{

	struct i2c_client *client = to_i2c_client(dev);

	struct max1619_data *data = i2c_get_clientdata(client);

	int config;



	mutex_lock(&data->update_lock);



	if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {

		dev_dbg(&client->dev, "Updating max1619 data.\n");

		data->temp_input1 = i2c_smbus_read_byte_data(client,

					MAX1619_REG_R_LOCAL_TEMP);

		data->temp_input2 = i2c_smbus_read_byte_data(client,

					MAX1619_REG_R_REMOTE_TEMP);

		data->temp_high2 = i2c_smbus_read_byte_data(client,

					MAX1619_REG_R_REMOTE_HIGH);

		data->temp_low2 = i2c_smbus_read_byte_data(client,

					MAX1619_REG_R_REMOTE_LOW);

		data->temp_crit2 = i2c_smbus_read_byte_data(client,

					MAX1619_REG_R_REMOTE_CRIT);

		data->temp_hyst2 = i2c_smbus_read_byte_data(client,

					MAX1619_REG_R_TCRIT_HYST);

		data->alarms = i2c_smbus_read_byte_data(client,

					MAX1619_REG_R_STATUS);

		/* If OVERT polarity is low, reverse alarm bit */

		config = i2c_smbus_read_byte_data(client, MAX1619_REG_R_CONFIG);

		if (!(config & 0x20))

			data->alarms ^= 0x02;



		data->last_updated = jiffies;

		data->valid = 1;

	}



	mutex_unlock(&data->update_lock);



	return data;

}



/*

 * Sysfs stuff

 */
@@ -216,10 +220,6 @@ static const struct attribute_group max1619_group = { 
	.attrs = max1619_attributes,

};



/*

 * Real code

 */



/* Return 0 if detection is successful, -ENODEV otherwise */

static int max1619_detect(struct i2c_client *client,

			  struct i2c_board_info *info)
@@ -256,6 +256,21 @@ static int max1619_detect(struct i2c_client *client, 
	return 0;

}



static void max1619_init_client(struct i2c_client *client)

{

	u8 config;



	/*

	 * Start the conversions.

	 */

	i2c_smbus_write_byte_data(client, MAX1619_REG_W_CONVRATE,

				  5); /* 2 Hz */

	config = i2c_smbus_read_byte_data(client, MAX1619_REG_R_CONFIG);

	if (config & 0x40)

		i2c_smbus_write_byte_data(client, MAX1619_REG_W_CONFIG,

					  config & 0xBF); /* run */

}



static int max1619_probe(struct i2c_client *new_client,

			 const struct i2c_device_id *id)

{
@@ -291,21 +306,6 @@ static int max1619_probe(struct i2c_client *new_client, 
	return err;

}



static void max1619_init_client(struct i2c_client *client)

{

	u8 config;



	/*

	 * Start the conversions.

	 */

	i2c_smbus_write_byte_data(client, MAX1619_REG_W_CONVRATE,

				  5); /* 2 Hz */

	config = i2c_smbus_read_byte_data(client, MAX1619_REG_R_CONFIG);

	if (config & 0x40)

		i2c_smbus_write_byte_data(client, MAX1619_REG_W_CONFIG,

					  config & 0xBF); /* run */

}



static int max1619_remove(struct i2c_client *client)

{

	struct max1619_data *data = i2c_get_clientdata(client);
@@ -316,43 +316,23 @@ static int max1619_remove(struct i2c_client *client) 
	return 0;

}



static struct max1619_data *max1619_update_device(struct device *dev)

{

	struct i2c_client *client = to_i2c_client(dev);

	struct max1619_data *data = i2c_get_clientdata(client);

	int config;



	mutex_lock(&data->update_lock);



	if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {

		dev_dbg(&client->dev, "Updating max1619 data.\n");

		data->temp_input1 = i2c_smbus_read_byte_data(client,

					MAX1619_REG_R_LOCAL_TEMP);

		data->temp_input2 = i2c_smbus_read_byte_data(client,

					MAX1619_REG_R_REMOTE_TEMP);

		data->temp_high2 = i2c_smbus_read_byte_data(client,

					MAX1619_REG_R_REMOTE_HIGH);

		data->temp_low2 = i2c_smbus_read_byte_data(client,

					MAX1619_REG_R_REMOTE_LOW);

		data->temp_crit2 = i2c_smbus_read_byte_data(client,

					MAX1619_REG_R_REMOTE_CRIT);

		data->temp_hyst2 = i2c_smbus_read_byte_data(client,

					MAX1619_REG_R_TCRIT_HYST);

		data->alarms = i2c_smbus_read_byte_data(client,

					MAX1619_REG_R_STATUS);

		/* If OVERT polarity is low, reverse alarm bit */

		config = i2c_smbus_read_byte_data(client, MAX1619_REG_R_CONFIG);

		if (!(config & 0x20))

			data->alarms ^= 0x02;



		data->last_updated = jiffies;

		data->valid = 1;

	}



	mutex_unlock(&data->update_lock);

static const struct i2c_device_id max1619_id[] = {

	{ "max1619", 0 },

	{ }

};

MODULE_DEVICE_TABLE(i2c, max1619_id);



	return data;

}

static struct i2c_driver max1619_driver = {

	.class		= I2C_CLASS_HWMON,

	.driver = {

		.name	= "max1619",

	},

	.probe		= max1619_probe,

	.remove		= max1619_remove,

	.id_table	= max1619_id,

	.detect		= max1619_detect,

	.address_list	= normal_i2c,

};



module_i2c_driver(max1619_driver);