diff options
| -rw-r--r-- | drivers/i2c/i2c-core.c | 15 | ||||
| -rw-r--r-- | include/linux/i2c.h | 8 |
2 files changed, 19 insertions, 4 deletions
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 52b2cd4ac8b2..8b93a262e237 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -924,8 +924,6 @@ static int i2c_device_probe(struct device *dev) } driver = to_i2c_driver(dev->driver); - if (!driver->probe) - return -EINVAL; /* * An I2C ID table is not mandatory, if and only if, a suitable Device @@ -967,7 +965,18 @@ static int i2c_device_probe(struct device *dev) if (status == -EPROBE_DEFER) goto err_clear_wakeup_irq; - status = driver->probe(client, i2c_match_id(driver->id_table, client)); + /* + * When there are no more users of probe(), + * rename probe_new to probe. + */ + if (driver->probe_new) + status = driver->probe_new(client); + else if (driver->probe) + status = driver->probe(client, + i2c_match_id(driver->id_table, client)); + else + status = -EINVAL; + if (status) goto err_detach_pm_domain; diff --git a/include/linux/i2c.h b/include/linux/i2c.h index 7e00efd6a62f..82cf90945bb8 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -135,7 +135,8 @@ enum i2c_alert_protocol { * struct i2c_driver - represent an I2C device driver * @class: What kind of i2c device we instantiate (for detect) * @attach_adapter: Callback for bus addition (deprecated) - * @probe: Callback for device binding + * @probe: Callback for device binding - soon to be deprecated + * @probe_new: New callback for device binding * @remove: Callback for device unbinding * @shutdown: Callback for device shutdown * @alert: Alert callback, for example for the SMBus alert protocol @@ -178,6 +179,11 @@ struct i2c_driver { int (*probe)(struct i2c_client *, const struct i2c_device_id *); int (*remove)(struct i2c_client *); + /* New driver model interface to aid the seamless removal of the + * current probe()'s, more commonly unused than used second parameter. + */ + int (*probe_new)(struct i2c_client *); + /* driver model interfaces that don't relate to enumeration */ void (*shutdown)(struct i2c_client *); |