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i2c: Kill the old driver matching scheme 

Remove the old driver_name/type scheme for i2c driver matching. Only the
standard aliasing model will be used from now on.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
This commit is contained in:
Jean Delvare 2008-05-18 20:49:41 +02:00 committed by Jean Delvare
parent af294867a5
commit eb8a790809
3 changed files with 7 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
drivers/i2c/i2c-core.c
View File

@ -74,10 +74,7 @@ static int i2c_device_match(struct device *dev, struct device_driver *drv)
if (driver->id_table)
return i2c_match_id(driver->id_table, client) != NULL;
/* new style drivers use the same kind of driver matching policy
* as platform devices or SPI: compare device and driver IDs.
*/
return strcmp(client->driver_name, drv->name) == 0;
return 0;
}
#ifdef CONFIG_HOTPLUG
@ -91,14 +88,9 @@ static int i2c_device_uevent(struct device *dev, struct kobj_uevent_env *env)
if (dev->driver)
return 0;
if (client->driver_name[0]) {
if (add_uevent_var(env, "MODALIAS=%s", client->driver_name))
return -ENOMEM;
} else {
if (add_uevent_var(env, "MODALIAS=%s%s",
I2C_MODULE_PREFIX, client->name))
return -ENOMEM;
}
if (add_uevent_var(env, "MODALIAS=%s%s",
I2C_MODULE_PREFIX, client->name))
return -ENOMEM;
dev_dbg(dev, "uevent\n");
return 0;
}
@ -206,9 +198,7 @@ static ssize_t show_client_name(struct device *dev, struct device_attribute *att
static ssize_t show_modalias(struct device *dev, struct device_attribute *attr, char *buf)
{
struct i2c_client *client = to_i2c_client(dev);
return client->driver_name[0]
? sprintf(buf, "%s\n", client->driver_name)
: sprintf(buf, "%s%s\n", I2C_MODULE_PREFIX, client->name);
return sprintf(buf, "%s%s\n", I2C_MODULE_PREFIX, client->name);
}
static struct device_attribute i2c_dev_attrs[] = {
@ -282,8 +272,6 @@ i2c_new_device(struct i2c_adapter *adap, struct i2c_board_info const *info)
client->addr = info->addr;
client->irq = info->irq;
strlcpy(client->driver_name, info->driver_name,
sizeof(client->driver_name));
strlcpy(client->name, info->type, sizeof(client->name));
/* a new style driver may be bound to this device when we

7
include/linux/i2c.h
View File

@ -155,8 +155,6 @@ struct i2c_driver {
* @driver: device's driver, hence pointer to access routines
* @dev: Driver model device node for the slave.
* @irq: indicates the IRQ generated by this device (if any)
* @driver_name: Identifies new-style driver used with this device; also
* used as the module name for hotplug/coldplug modprobe support.
* @list: list of active/busy clients (DEPRECATED)
* @released: used to synchronize client releases & detaches and references
*
@ -174,7 +172,6 @@ struct i2c_client {
struct i2c_driver *driver; /* and our access routines */
struct device dev; /* the device structure */
int irq; /* irq issued by device (or -1) */
char driver_name[KOBJ_NAME_LEN];
struct list_head list; /* DEPRECATED */
struct completion released;
};
@ -200,8 +197,7 @@ static inline void i2c_set_clientdata (struct i2c_client *dev, void *data)
/**
* struct i2c_board_info - template for device creation
* @driver_name: identifies the driver to be bound to the device
* @type: optional chip type information, to initialize i2c_client.name
* @type: chip type, to initialize i2c_client.name
* @flags: to initialize i2c_client.flags
* @addr: stored in i2c_client.addr
* @platform_data: stored in i2c_client.dev.platform_data
@ -220,7 +216,6 @@ static inline void i2c_set_clientdata (struct i2c_client *dev, void *data)
* with the adapter already known.
*/
struct i2c_board_info {
char driver_name[KOBJ_NAME_LEN];
char type[I2C_NAME_SIZE];
unsigned short flags;
unsigned short addr;

3
include/linux/i2c/pcf857x.h
View File

@ -12,8 +12,7 @@
* @context: optional parameter passed to setup() and teardown()
*
* In addition to the I2C_BOARD_INFO() state appropriate to each chip,
* the i2c_board_info used with the pcf875x driver must provide the
* chip "type" ("pcf8574", "pcf8574a", "pcf8575", "pcf8575c") and its
* the i2c_board_info used with the pcf875x driver must provide its
* platform_data (pointer to one of these structures) with at least
* the gpio_base value initialized.
*