Add Support for OnePlus 6T

[J0SH1X]

This commit adds support for Oneplus 6T (fajita), it adds boardconfig files aswell as a new kernel with support for the tfa98xx module provided in my GitHub repo https://github.com/j0sh1x/tfa98xx.git

[J0SH1X]

the kernel source doesn't differ I just had to rebuild it for the module to load properly without hacks

[calebccff]

Thanks for this PR.

please note the current expectation here is that users compile their own kernels.

we also don't host firmware under this namespace.

can you make this a single commit to add the board files, drop the kernel changes and firmware.

[J0SH1X]

changed it to only add board support files

[calebccff]

Awesome, let me know when you've validated it and I'll merge this.

[sc-ah]

validation failed :/

device starts into a black screen and then reboots

[calebccff]

This matches my experience with it. I suspect a bug in the display panel driver.

[sc-ah]

i will try to add some code to force crashdump mode into panel driver and see if i can provide any logs without uart , i dont wanna open my device

[sc-ah]

also i was told if this code wont crash into crashdump but keeps running me may can get EL2 access

[calebccff]

It's worth giving this a go, I've had a lot of success getting logs this way: https://wiki.postmarketos.org/wiki/Serial_debugging/Serial_Gadget

[J0SH1X]

it looks like its caused by something in aosp.config if i compile the kernel only with sdm845.config it boots to no rootfs panic if i then recompile for android i get the same behaviour that the log cuts off and the device reboots

[calebccff]

Can you include the log please?

[sc-ah]

The device doesnt print out logs only if the kernel is bootstrapped with edk2 i can get some kind of on screen log but thats not very usefull

[calebccff]

Did you try my suggestion of using the USB serial gadget to get logs via USB?

[calebccff]

Also, stop using edk2, it makes it harder to reproduce whatever issues you're having. just flash to the boot partition as normal

[J0SH1X]

managed to get a serial device shown but its rebooting so quickly I can't grab any logs I will try with my linux machine again , rn im using my work Mac

[J0SH1X]

this doesn't seem to work as the device reboots just too fast

[J0SH1X]

finally got it to work on a linux machine

https://gist.github.com/J0SH1X/72df7652d110e559333edc91230190c6

[J0SH1X]

it looks like the fstab and init scripts are not beeing copied over properly

[J0SH1X]

device reaches init now and doesnt reboot anymore display is dead cause of a missing firmware file

will continue debugging later

[calebccff]

I'm not sure if this is actually needed, memfd is used as a fallback by default and d7cdfec fixes support for it.

@pundiramit can you clarify?

[J0SH1X]

if you don't add ashmem driver back into kernel its needed else surfaceflinger keeps crashing with ashmem driver added back its not needed

[calebccff]

Please drop the merge commit

Edit: and squash the top two commits into one.