DP_AUX_D
[AUX_CH_D_XELPD] = DP_AUX_D,
[AUX_CH_USBC3] = DP_AUX_D,
[AUX_CH_USBC2] = DP_AUX_D,
[AUX_CH_D] = DP_AUX_D, /* aka AUX_CH_USBC1 */
v->child3.aux_channel = DP_AUX_D;