i2c: core: Make debug message even more debuggish

One may notice that dev_printk(KERN_DEBUG ...) is *not* an equivalent
to dev_dbg(). It will be printed whenever loglevel is high enough.
And currently it will be the only message in the I²C core in some
configurations that got printed under above conditions.

Moving to dev_dbg() will hide it in the configurations where Dynamic Debug
is enabled and hence align with all other debug messages in the I²C core..

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

drivers/i2c/i2c-core-base.c

@@ -399,7 +399,8 @@ static int i2c_gpio_init_recovery(struct i2c_adapter *adap)
 static int i2c_init_recovery(struct i2c_adapter *adap)
 {
 	struct i2c_bus_recovery_info *bri = adap->bus_recovery_info;
-	char *err_str, *err_level = KERN_ERR;
+	bool is_error_level = true;
+	char *err_str;
 
 	if (!bri)
 		return 0;
@@ -409,7 +410,7 @@ static int i2c_init_recovery(struct i2c_adapter *adap)
 
 	if (!bri->recover_bus) {
 		err_str = "no suitable method provided";
-		err_level = KERN_DEBUG;
+		is_error_level = false;
 		goto err;
 	}
 
@@ -436,7 +437,10 @@ static int i2c_init_recovery(struct i2c_adapter *adap)
 
 	return 0;
  err:
-	dev_printk(err_level, &adap->dev, "Not using recovery: %s\n", err_str);
+	if (is_error_level)
+		dev_err(&adap->dev, "Not using recovery: %s\n", err_str);
+	else
+		dev_dbg(&adap->dev, "Not using recovery: %s\n", err_str);
 	adap->bus_recovery_info = NULL;
 
 	return -EINVAL;