During FRL link training, the sink might request the source to adjust the FFE level if the source indicates that FFE level change is supported. This callback indicates the need to change the FFE level for the specified lanes.
The application should check the return value of the API for the level of FFE which needs to be configured:
u8 XV_HdmiTxSs1_GetTxFfe(XV_HdmiTxSs1 *InstancePtr, u8 Lane)