/* TODO: correct limits > 40 */
                        ret = -EOPNOTSUPP;
                } else if ((msg[0].addr == state->af9033_i2c_addr[0]) ||
-                          (msg[0].addr == state->af9033_i2c_addr[1]) ||
-                          (state->chip_type == 0x9135)) {
+                          (msg[0].addr == state->af9033_i2c_addr[1])) {
                        /* demod access via firmware interface */
                        u32 reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
                                        msg[0].buf[2];
 
-                       if (msg[0].addr == state->af9033_i2c_addr[1] ||
-                           msg[0].addr == (state->af9033_i2c_addr[1] >> 1))
+                       if (msg[0].addr == state->af9033_i2c_addr[1])
                                reg |= 0x100000;
 
                        ret = af9035_rd_regs(d, reg, &msg[1].buf[0],
                        /* TODO: correct limits > 40 */
                        ret = -EOPNOTSUPP;
                } else if ((msg[0].addr == state->af9033_i2c_addr[0]) ||
-                          (msg[0].addr == state->af9033_i2c_addr[1]) ||
-                          (state->chip_type == 0x9135)) {
+                          (msg[0].addr == state->af9033_i2c_addr[1])) {
                        /* demod access via firmware interface */
                        u32 reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
                                        msg[0].buf[2];
 
-                       if (msg[0].addr == state->af9033_i2c_addr[1] ||
-                           msg[0].addr == (state->af9033_i2c_addr[1] >> 1))
+                       if (msg[0].addr == state->af9033_i2c_addr[1])
                                reg |= 0x100000;
 
                        ret = af9035_wr_regs(d, reg, &msg[0].buf[3],
        struct state *state = adap_to_priv(adap);
        struct dvb_usb_device *d = adap_to_d(adap);
        struct usb_interface *intf = d->intf;
-       int demod2;
 
        dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
 
-       /*
-        * For dual tuner devices we have to resolve 2nd demod client, as there
-        * is two different kind of tuner drivers; one is using I2C binding
-        * and the other is using DVB attach/detach binding.
-        */
-       switch (state->af9033_config[adap->id].tuner) {
-       case AF9033_TUNER_IT9135_38:
-       case AF9033_TUNER_IT9135_51:
-       case AF9033_TUNER_IT9135_52:
-       case AF9033_TUNER_IT9135_60:
-       case AF9033_TUNER_IT9135_61:
-       case AF9033_TUNER_IT9135_62:
-               demod2 = 2;
-               break;
-       default:
-               demod2 = 1;
-       }
-
        if (adap->id == 1) {
-               if (state->i2c_client[demod2])
+               if (state->i2c_client[1])
                        af9035_del_i2c_dev(d);
        } else if (adap->id == 0) {
                if (state->i2c_client[0])
        case AF9033_TUNER_IT9135_38:
        case AF9033_TUNER_IT9135_51:
        case AF9033_TUNER_IT9135_52:
-       {
-               struct it913x_config it913x_config = {
-                       .fe = adap->fe[0],
-                       .chip_ver = 1,
-               };
-
-               if (state->dual_mode) {
-                       if (adap->id == 0)
-                               it913x_config.role = IT913X_ROLE_DUAL_MASTER;
-                       else
-                               it913x_config.role = IT913X_ROLE_DUAL_SLAVE;
-               }
-
-               ret = af9035_add_i2c_dev(d, "it913x",
-                               state->af9033_i2c_addr[adap->id] >> 1,
-                               &it913x_config, &d->i2c_adap);
-               if (ret)
-                       goto err;
-
-               fe = adap->fe[0];
-               break;
-       }
        case AF9033_TUNER_IT9135_60:
        case AF9033_TUNER_IT9135_61:
        case AF9033_TUNER_IT9135_62:
        {
-               struct it913x_config it913x_config = {
+               struct platform_device *pdev;
+               struct it913x_platform_data it913x_pdata = {
+                       .regmap = state->af9033_config[adap->id].regmap,
                        .fe = adap->fe[0],
-                       .chip_ver = 2,
                };
 
+               switch (state->af9033_config[adap->id].tuner) {
+               case AF9033_TUNER_IT9135_38:
+               case AF9033_TUNER_IT9135_51:
+               case AF9033_TUNER_IT9135_52:
+                       it913x_pdata.chip_ver = 1;
+                       break;
+               case AF9033_TUNER_IT9135_60:
+               case AF9033_TUNER_IT9135_61:
+               case AF9033_TUNER_IT9135_62:
+                       it913x_pdata.chip_ver = 2;
+                       break;
+               default:
+                       ret = -ENODEV;
+                       goto err;
+               }
+
                if (state->dual_mode) {
                        if (adap->id == 0)
-                               it913x_config.role = IT913X_ROLE_DUAL_MASTER;
+                               it913x_pdata.role = IT913X_ROLE_DUAL_MASTER;
                        else
-                               it913x_config.role = IT913X_ROLE_DUAL_SLAVE;
+                               it913x_pdata.role = IT913X_ROLE_DUAL_SLAVE;
+               } else {
+                       it913x_pdata.role = IT913X_ROLE_SINGLE;
                }
 
-               ret = af9035_add_i2c_dev(d, "it913x",
-                               state->af9033_i2c_addr[adap->id] >> 1,
-                               &it913x_config, &d->i2c_adap);
-               if (ret)
+               request_module("%s", "it913x");
+               pdev = platform_device_register_data(&d->intf->dev,
+                                                    "it913x",
+                                                    PLATFORM_DEVID_AUTO,
+                                                    &it913x_pdata,
+                                                    sizeof(it913x_pdata));
+               if (IS_ERR(pdev) || !pdev->dev.driver) {
+                       ret = -ENODEV;
+                       goto err;
+               }
+               if (!try_module_get(pdev->dev.driver->owner)) {
+                       platform_device_unregister(pdev);
+                       ret = -ENODEV;
                        goto err;
+               }
 
+               state->platform_device_tuner[adap->id] = pdev;
                fe = adap->fe[0];
                break;
        }
        switch (state->af9033_config[adap->id].tuner) {
        case AF9033_TUNER_TUA9001:
        case AF9033_TUNER_FC2580:
-       case AF9033_TUNER_IT9135_38:
-       case AF9033_TUNER_IT9135_51:
-       case AF9033_TUNER_IT9135_52:
-       case AF9033_TUNER_IT9135_60:
-       case AF9033_TUNER_IT9135_61:
-       case AF9033_TUNER_IT9135_62:
                if (adap->id == 1) {
                        if (state->i2c_client[3])
                                af9035_del_i2c_dev(d);
                        if (state->i2c_client[1])
                                af9035_del_i2c_dev(d);
                }
+               break;
+       case AF9033_TUNER_IT9135_38:
+       case AF9033_TUNER_IT9135_51:
+       case AF9033_TUNER_IT9135_52:
+       case AF9033_TUNER_IT9135_60:
+       case AF9033_TUNER_IT9135_61:
+       case AF9033_TUNER_IT9135_62:
+       {
+               struct platform_device *pdev;
+
+               pdev = state->platform_device_tuner[adap->id];
+               if (pdev) {
+                       module_put(pdev->dev.driver->owner);
+                       platform_device_unregister(pdev);
+               }
+               break;
+       }
        }
 
        return 0;