VLV_PCS01_DW8
val = vlv_dpio_read(dev_priv, pipe, VLV_PCS01_DW8(port));
val = vlv_dpio_read(dev_priv, pipe, VLV_PCS01_DW8(ch));
vlv_dpio_write(dev_priv, pipe, VLV_PCS01_DW8(ch), val);