@applee Ok, thank you.

@atroubleshooter BTW, if anyone knows how to reach out to the port maintainer, please let me know.

I don't know the guy who's ported UT on Xiaomi Redmi 7, but he's done the excellent job.
Everything pretty much works, but the kernel shipped with the build is a DEBUG one, so I'm getting in dmesg output:

[    0.000000] ** If you see this message and you are not debugging    **
[    0.000000] ** the kernel, report this immediately to your vendor!  **
[    0.000000] **                                                      **
[    0.000000] **   NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE   **
[    0.000000] **********************************************************

The kernel version is:

Linux version 4.9.214-perf+ (root@runner-jhcjxvh-project-23350609-concurrent-0) (Android (6875598, based on r399163b) clang version 11.0.5 (https://android.googlesource.com/toolchain/llvm-project 87f1315dfbea7c137aa2e6d362dbb457e388158d)) #1 SMP PREEMPT Tue Apr 19 17:00:02 UTC 2022

Device: onclite (Redmi 7)
Channel: Stable
Build: OTA 24