diff options
| -rw-r--r-- | drivers/hwmon/w83l786ng.c | 98 |
1 files changed, 45 insertions, 53 deletions
diff --git a/drivers/hwmon/w83l786ng.c b/drivers/hwmon/w83l786ng.c index 41e22ddb568a..badca769f350 100644 --- a/drivers/hwmon/w83l786ng.c +++ b/drivers/hwmon/w83l786ng.c @@ -121,7 +121,6 @@ DIV_TO_REG(long val) } struct w83l786ng_data { - struct i2c_client client; struct device *hwmon_dev; struct mutex update_lock; char valid; /* !=0 if following fields are valid */ @@ -146,18 +145,30 @@ struct w83l786ng_data { u8 tolerance[2]; }; -static int w83l786ng_attach_adapter(struct i2c_adapter *adapter); -static int w83l786ng_detect(struct i2c_adapter *adapter, int address, int kind); -static int w83l786ng_detach_client(struct i2c_client *client); +static int w83l786ng_probe(struct i2c_client *client, + const struct i2c_device_id *id); +static int w83l786ng_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info); +static int w83l786ng_remove(struct i2c_client *client); static void w83l786ng_init_client(struct i2c_client *client); static struct w83l786ng_data *w83l786ng_update_device(struct device *dev); +static const struct i2c_device_id w83l786ng_id[] = { + { "w83l786ng", w83l786ng }, + { } +}; +MODULE_DEVICE_TABLE(i2c, w83l786ng_id); + static struct i2c_driver w83l786ng_driver = { + .class = I2C_CLASS_HWMON, .driver = { .name = "w83l786ng", }, - .attach_adapter = w83l786ng_attach_adapter, - .detach_client = w83l786ng_detach_client, + .probe = w83l786ng_probe, + .remove = w83l786ng_remove, + .id_table = w83l786ng_id, + .detect = w83l786ng_detect, + .address_data = &addr_data, }; static u8 @@ -575,42 +586,15 @@ static const struct attribute_group w83l786ng_group = { }; static int -w83l786ng_attach_adapter(struct i2c_adapter *adapter) +w83l786ng_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info) { - if (!(adapter->class & I2C_CLASS_HWMON)) - return 0; - return i2c_probe(adapter, &addr_data, w83l786ng_detect); -} - -static int -w83l786ng_detect(struct i2c_adapter *adapter, int address, int kind) -{ - struct i2c_client *client; - struct device *dev; - struct w83l786ng_data *data; - int i, err = 0; - u8 reg_tmp; + struct i2c_adapter *adapter = client->adapter; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { - goto exit; - } - - /* OK. For now, we presume we have a valid client. We now create the - client structure, even though we cannot fill it completely yet. - But it allows us to access w83l786ng_{read,write}_value. */ - - if (!(data = kzalloc(sizeof(struct w83l786ng_data), GFP_KERNEL))) { - err = -ENOMEM; - goto exit; + return -ENODEV; } - client = &data->client; - dev = &client->dev; - i2c_set_clientdata(client, data); - client->addr = address; - client->adapter = adapter; - client->driver = &w83l786ng_driver; - /* * Now we do the remaining detection. A negative kind means that * the driver was loaded with no force parameter (default), so we @@ -627,8 +611,8 @@ w83l786ng_detect(struct i2c_adapter *adapter, int address, int kind) W83L786NG_REG_CONFIG) & 0x80) != 0x00)) { dev_dbg(&adapter->dev, "W83L786NG detection failed at 0x%02x.\n", - address); - goto exit_free; + client->addr); + return -ENODEV; } } @@ -651,17 +635,31 @@ w83l786ng_detect(struct i2c_adapter *adapter, int address, int kind) dev_info(&adapter->dev, "Unsupported chip (man_id=0x%04X, " "chip_id=0x%02X).\n", man_id, chip_id); - goto exit_free; + return -ENODEV; } } - /* Fill in the remaining client fields and put into the global list */ - strlcpy(client->name, "w83l786ng", I2C_NAME_SIZE); - mutex_init(&data->update_lock); + strlcpy(info->type, "w83l786ng", I2C_NAME_SIZE); - /* Tell the I2C layer a new client has arrived */ - if ((err = i2c_attach_client(client))) - goto exit_free; + return 0; +} + +static int +w83l786ng_probe(struct i2c_client *client, const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + struct w83l786ng_data *data; + int i, err = 0; + u8 reg_tmp; + + data = kzalloc(sizeof(struct w83l786ng_data), GFP_KERNEL); + if (!data) { + err = -ENOMEM; + goto exit; + } + + i2c_set_clientdata(client, data); + mutex_init(&data->update_lock); /* Initialize the chip */ w83l786ng_init_client(client); @@ -693,25 +691,19 @@ w83l786ng_detect(struct i2c_adapter *adapter, int address, int kind) exit_remove: sysfs_remove_group(&client->dev.kobj, &w83l786ng_group); - i2c_detach_client(client); -exit_free: kfree(data); exit: return err; } static int -w83l786ng_detach_client(struct i2c_client *client) +w83l786ng_remove(struct i2c_client *client) { struct w83l786ng_data *data = i2c_get_clientdata(client); - int err; hwmon_device_unregister(data->hwmon_dev); sysfs_remove_group(&client->dev.kobj, &w83l786ng_group); - if ((err = i2c_detach_client(client))) - return err; - kfree(data); return 0; |