diff options
Diffstat (limited to 'drivers/i2c/i2c-core.c')
| -rw-r--r-- | drivers/i2c/i2c-core.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 4ccff114b147..a1eeb8a5d3f8 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -1915,6 +1915,16 @@ static int i2c_detect(struct i2c_adapter *adapter, struct i2c_driver *driver) if (!driver->detect || !address_list) return 0; + /* Warn that the adapter lost class based instantiation */ + if (adapter->class == I2C_CLASS_DEPRECATED) { + dev_dbg(&adapter->dev, + "This adapter dropped support for I2C classes and " + "won't auto-detect %s devices anymore. If you need it, check " + "'Documentation/i2c/instantiating-devices' for alternatives.\n", + driver->driver.name); + return 0; + } + /* Stop here if the classes do not match */ if (!(adapter->class & driver->class)) return 0; |