where did driver read edid and change it to read 512 bytes?

[wangvictor]

Hi community,

I'm working on i.MX6 DL sabreSD board with Android 6.

I'm trying to change read edid from 256 bytes to 512 bytes.

Question:

1. Where do driver read edid when booting system.
2. How to read edid from 256 bytes to 512 bytes.
3. Any Document or reference for me to study?

Thanks in Advanced!