root {
    platform {
        gpio_config {
            controller_0x120d0000 {
                match_attr = "linux_gpio_adapter";
                groupNum = 12;
                bitNum = 8;
                regBase = 0x120d0000;
                regStep = 0x1000;
                irqStart = 48;
                irqShare = 0;
            }
        }
    }
}