static void
gqti_ctrl_notify_modem(void *gptr, u8 portno, int val)
{
	struct rmnet_ctrl_qti_port *port;

	if (portno >= NR_QTI_PORTS) {
		pr_err("%s: Invalid QTI port %d\n", __func__, portno);
		return;
	}
	port = ctrl_port[portno];

	atomic_set(&port->line_state, val);

	/* send 0 len pkt to qti to notify state change */
	rmnet_ctrl_queue_notify(port);
}
void gqti_ctrl_disconnect(struct grmnet *gr, u8 port_num)
{
	struct rmnet_ctrl_qti_port	*port;
	unsigned long		flags;
	struct rmnet_ctrl_pkt	*cpkt;

	pr_debug("%s: grmnet:%p\n", __func__, gr);

	if (port_num >= NR_QTI_PORTS) {
		pr_err("%s: Invalid QTI port %d\n", __func__, port_num);
		return;
	}

	port = ctrl_port[port_num];

	if (!gr || !port) {
		pr_err("%s: grmnet port is null\n", __func__);
		return;
	}

	if (port->port_usb && port->port_usb->disconnect)
		port->port_usb->disconnect(port->port_usb);

	atomic_set(&port->connected, 0);
	atomic_set(&port->line_state, 0);
	spin_lock_irqsave(&port->lock, flags);
	port->port_usb = 0;
	gr->send_encap_cmd = 0;
	gr->notify_modem = 0;

	while (!list_empty(&port->cpkt_req_q)) {
		cpkt = list_first_entry(&port->cpkt_req_q,
					struct rmnet_ctrl_pkt, list);

		list_del(&cpkt->list);
		free_rmnet_ctrl_pkt(cpkt);
	}

	spin_unlock_irqrestore(&port->lock, flags);

	/* send 0 len pkt to qti to notify state change */
	rmnet_ctrl_queue_notify(port);
}