int_port = gpio_request_ex("gt911_para", "int_port");
    if(!int_port){
	GTP_ERROR("Failed to request GPIO:%d, ERRNO:%d", (s32)int_port, int_port);
        ret = -ENODEV;
    }
    else
    {
        //GTP_GPIO_AS_INT(int_port);
        ts->client->irq = GTP_INT_IRQ;
	printk("IRQ PORT GTP: %d %u\n",ts->client->irq,ts->client->irq);
    }


where
#define GTP_INT_IRQ     gpio_to_irq(int_port)