Now that the i2c_adapter migration plan changed and we are going to
keep i2c_adapter.dev, it's no longer that urgent to add a proper device
to all i2c_adapter drivers. Thus is seems resonable to degrade the
warning asking authors to migrate their driver to a debug message.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
         */
        if (adap->dev.parent == NULL) {
                adap->dev.parent = &platform_bus;
-               printk(KERN_WARNING "**WARNING** I2C adapter driver [%s] "
-                      "forgot to specify physical device; fix it!\n",
-                      adap->name);
+               pr_debug("I2C adapter driver [%s] forgot to specify "
+                        "physical device\n", adap->name);
        }
        sprintf(adap->dev.bus_id, "i2c-%d", adap->nr);
        adap->dev.driver = &i2c_adapter_driver;