Hi Phong and Neil,
I see you sent a patchset to support the ITE66121 HDMI transmitter, last version being the V2 back in March 2020.
Do you still plan to mainline it?
I do have a device with a ITE66121 chip, so I can help to clean the driver and have it mainlined. But right now I cannot get the driver to work, while the chip is properly detected and correct DDC data is read,, my PC monitor does not detect any signal.
Cheers, -Paul