"HappY, sizes?" <- Honestly this is my first time mainline port.. I don't have proper knowledge about it.. I checked various devices as a reference after I booted my device.. mainline boot was taken 5 months from me.. and yes without pmos groups it was impossible.. because I remember & laugh about my 1st dts.. Anyway I only know if any reserved memory region added is mismatch then I have to `/delete-node/ &xyz-mem;` But for that case what should I do, I don't know.. I mean suppose `xyz-mem` reg address is same but size different, then I have do same `/delete-node/ &xyz-mem; ? And suppose some of downstream reserved memory not available in mainline then what should I do? & if same as mainline have some reserved region which is not available in downstream.. than what should we do?