Hi, I just found the ak8975_of_match table has compatible string without vendor prefix. static const struct of_device_id ak8975_of_match[] = { { .compatible = "asahi-kasei,ak8975", }, { .compatible = "ak8975", }, { .compatible = "asahi-kasei,ak8963", }, { .compatible = "ak8963", }, { .compatible = "asahi-kasei,ak09911", }, { .compatible = "ak09911", }, { .compatible = "asahi-kasei,ak09912", }, { .compatible = "ak09912", }, {} }; This seems unusual, just curious why below compatible strings are required? { .compatible = "ak8975", }, { .compatible = "ak8963", }, { .compatible = "ak09911", }, { .compatible = "ak09912", }, Regards, Axel -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html