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i2c: Merge i2c_attach_client into i2c_new_device

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Now that i2c_attach_client is no longer exported, it doesn't need to
be a separate function. Merge it into its only user, i2c_new_device.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: David Brownell <dbrownell@users.sourceforge.net>
This commit is contained in:
Jean Delvare 2009-06-19 16:58:18 +02:00
parent 36789b5ea5
commit f8a227e8ac
1 changed files with 41 additions and 59 deletions
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100
drivers/i2c/i2c-core.c
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@ -43,7 +43,7 @@ static DEFINE_IDR(i2c_adapter_idr);
#define is_newstyle_driver(d) ((d)->probe || (d)->remove || (d)->detect)
static int i2c_attach_client(struct i2c_client *client);
static int i2c_check_addr(struct i2c_adapter *adapter, int addr);
static int i2c_detect(struct i2c_adapter *adapter, struct i2c_driver *driver);
/* ------------------------------------------------------------------------- */
@ -237,15 +237,17 @@ EXPORT_SYMBOL(i2c_verify_client);
/**
* i2c_new_device - instantiate an i2c device for use with a new style driver
* i2c_new_device - instantiate an i2c device
* @adap: the adapter managing the device
* @info: describes one I2C device; bus_num is ignored
* Context: can sleep
*
* Create a device to work with a new style i2c driver, where binding is
* handled through driver model probe()/remove() methods. This call is not
* appropriate for use by mainboad initialization logic, which usually runs
* during an arch_initcall() long before any i2c_adapter could exist.
* Create an i2c device. Binding is handled through driver model
* probe()/remove() methods. A driver may be bound to this device when we
* return from this function, or any later moment (e.g. maybe hotplugging will
* load the driver module). This call is not appropriate for use by mainboard
* initialization logic, which usually runs during an arch_initcall() long
* before any i2c_adapter could exist.
*
* This returns the new i2c client, which may be saved for later use with
* i2c_unregister_device(); or NULL to indicate an error.
@ -273,17 +275,40 @@ i2c_new_device(struct i2c_adapter *adap, struct i2c_board_info const *info)
strlcpy(client->name, info->type, sizeof(client->name));
/* a new style driver may be bound to this device when we
* return from this function, or any later moment (e.g. maybe
* hotplugging will load the driver module). and the device
* refcount model is the standard driver model one.
*/
status = i2c_attach_client(client);
if (status < 0) {
kfree(client);
client = NULL;
}
/* Check for address business */
status = i2c_check_addr(adap, client->addr);
if (status)
goto out_err;
client->dev.parent = &client->adapter->dev;
client->dev.bus = &i2c_bus_type;
if (client->driver && !is_newstyle_driver(client->driver)) {
client->dev.release = i2c_client_release;
dev_set_uevent_suppress(&client->dev, 1);
} else
client->dev.release = i2c_client_dev_release;
dev_set_name(&client->dev, "%d-%04x", i2c_adapter_id(adap),
client->addr);
status = device_register(&client->dev);
if (status)
goto out_err;
mutex_lock(&adap->clist_lock);
list_add_tail(&client->list, &adap->clients);
mutex_unlock(&adap->clist_lock);
dev_dbg(&adap->dev, "client [%s] registered with bus id %s\n",
client->name, dev_name(&client->dev));
return client;
out_err:
dev_err(&adap->dev, "Failed to register i2c client %s at 0x%02x "
"(%d)\n", client->name, client->addr, status);
kfree(client);
return NULL;
}
EXPORT_SYMBOL_GPL(i2c_new_device);
@ -760,49 +785,6 @@ static int i2c_check_addr(struct i2c_adapter *adapter, int addr)
return device_for_each_child(&adapter->dev, &addr, __i2c_check_addr);
}
static int i2c_attach_client(struct i2c_client *client)
{
struct i2c_adapter *adapter = client->adapter;
int res;
/* Check for address business */
res = i2c_check_addr(adapter, client->addr);
if (res)
return res;
client->dev.parent = &client->adapter->dev;
client->dev.bus = &i2c_bus_type;
if (client->driver)
client->dev.driver = &client->driver->driver;
if (client->driver && !is_newstyle_driver(client->driver)) {
client->dev.release = i2c_client_release;
dev_set_uevent_suppress(&client->dev, 1);
} else
client->dev.release = i2c_client_dev_release;
dev_set_name(&client->dev, "%d-%04x", i2c_adapter_id(adapter),
client->addr);
res = device_register(&client->dev);
if (res)
goto out_err;
mutex_lock(&adapter->clist_lock);
list_add_tail(&client->list, &adapter->clients);
mutex_unlock(&adapter->clist_lock);
dev_dbg(&adapter->dev, "client [%s] registered with bus id %s\n",
client->name, dev_name(&client->dev));
return 0;
out_err:
dev_err(&adapter->dev, "Failed to attach i2c client %s at 0x%02x "
"(%d)\n", client->name, client->addr, res);
return res;
}
/**
* i2c_use_client - increments the reference count of the i2c client structure
* @client: the client being referenced