]> git.kernelconcepts.de Git - karo-tx-linux.git/commitdiff
hwmon: (max1619) Rearrange code to avoid forward declarations
authorGuenter Roeck <linux@roeck-us.net>
Sat, 12 Apr 2014 17:14:33 +0000 (10:14 -0700)
committerGuenter Roeck <linux@roeck-us.net>
Wed, 21 May 2014 23:02:25 +0000 (16:02 -0700)
Forward declarations are unnecessary and easy to avoid, so rearrange
code and drop them.

No functional change.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
drivers/hwmon/max1619.c

index 9a8d7ca9b389c895fd9aac3432991cc2b2d741e0..c8a729734df5060e5096e49bac045a4a040a6e97 100644 (file)
@@ -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 @@ exit_remove_files:
        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);