Dual OV13850 cameras finally land on Firefly-RK3399 in Ubuntu 18.04!

VoiceJourney

I have a problem:
I have  just put the lastest kernel boot.img into my firefly rk3399 board,but it display the flip and mirror video .I try to modify flip and mirror regulation 0x3820 and 0x3821,but it did not work either。