diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 02f2a5621bb0..892dc043f40b 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -786,6 +786,8 @@ static int pca953x_probe(struct i2c_client *client,
 	chip->chip_type = PCA_CHIP_TYPE(chip->driver_data);
 
 	mutex_init(&chip->i2c_lock);
+	lockdep_set_subclass(&chip->i2c_lock,
+			     i2c_adapter_depth(client->adapter));
 
 	/* initialize cached registers from their original values.
 	 * we can't share this chip with another i2c master.