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

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
...@@ -71,40 +71,6 @@ static int temp_to_reg(int val) ...@@ -71,40 +71,6 @@ static int temp_to_reg(int val)
return (val < 0 ? val+0x100*1000 : val) / 1000; 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) * Client data (each client gets its own)
*/ */
...@@ -123,6 +89,44 @@ struct max1619_data { ...@@ -123,6 +89,44 @@ struct max1619_data {
u8 alarms; 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 * Sysfs stuff
*/ */
...@@ -216,10 +220,6 @@ static const struct attribute_group max1619_group = { ...@@ -216,10 +220,6 @@ static const struct attribute_group max1619_group = {
.attrs = max1619_attributes, .attrs = max1619_attributes,
}; };
/*
* Real code
*/
/* Return 0 if detection is successful, -ENODEV otherwise */ /* Return 0 if detection is successful, -ENODEV otherwise */
static int max1619_detect(struct i2c_client *client, static int max1619_detect(struct i2c_client *client,
struct i2c_board_info *info) struct i2c_board_info *info)
...@@ -256,6 +256,21 @@ static int max1619_detect(struct i2c_client *client, ...@@ -256,6 +256,21 @@ static int max1619_detect(struct i2c_client *client,
return 0; 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, static int max1619_probe(struct i2c_client *new_client,
const struct i2c_device_id *id) const struct i2c_device_id *id)
{ {
...@@ -291,21 +306,6 @@ static int max1619_probe(struct i2c_client *new_client, ...@@ -291,21 +306,6 @@ static int max1619_probe(struct i2c_client *new_client,
return err; 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) static int max1619_remove(struct i2c_client *client)
{ {
struct max1619_data *data = i2c_get_clientdata(client); struct max1619_data *data = i2c_get_clientdata(client);
...@@ -316,43 +316,23 @@ static int max1619_remove(struct i2c_client *client) ...@@ -316,43 +316,23 @@ static int max1619_remove(struct i2c_client *client)
return 0; return 0;
} }
static struct max1619_data *max1619_update_device(struct device *dev) static const struct i2c_device_id max1619_id[] = {
{ { "max1619", 0 },
struct i2c_client *client = to_i2c_client(dev); { }
struct max1619_data *data = i2c_get_clientdata(client); };
int config; MODULE_DEVICE_TABLE(i2c, max1619_id);
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; 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); module_i2c_driver(max1619_driver);
......
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