[PORT_E] = { DVO_PORT_HDMID, DVO_PORT_DPD, -1 },
        };
 
-       if (IS_ROCKETLAKE(dev_priv))
+       if (IS_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv))
                return __dvo_port_to_port(ARRAY_SIZE(rkl_port_mapping),
                                          ARRAY_SIZE(rkl_port_mapping[0]),
                                          rkl_port_mapping,
                aux_ch = AUX_CH_B;
                break;
        case DP_AUX_C:
-               aux_ch = IS_ROCKETLAKE(dev_priv) ? AUX_CH_D : AUX_CH_C;
+               aux_ch = (IS_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv)) ?
+                       AUX_CH_D : AUX_CH_C;
                break;
        case DP_AUX_D:
-               aux_ch = IS_ROCKETLAKE(dev_priv) ? AUX_CH_E : AUX_CH_D;
+               aux_ch = (IS_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv)) ?
+                       AUX_CH_E : AUX_CH_D;
                break;
        case DP_AUX_E:
                aux_ch = AUX_CH_E;