IDMAC_CHA_PRI
ipu_idmac_read(ipu, IDMAC_CHA_PRI(0)));
ipu_idmac_read(ipu, IDMAC_CHA_PRI(32)));
val = ipu_idmac_read(ipu, IDMAC_CHA_PRI(ch->num));
ipu_idmac_write(ipu, val, IDMAC_CHA_PRI(ch->num));