Hello JerryChang,
Well it’s actually a follow-up to the patch in Bandwidth problem when converting mipi RAW12 to T_R16_I or T_R16 on TX2 - #9 by phdm which fixes a real bug (the required bandwidth was underestimated), but fixing that bug multiplies the bandwidth requirement by 8.
Also overestimating the actual bandwidth requirement can lead to many problems like overheating or denying of service for that or other bandwidth clients.