Not recognizing soundcard

[tallfrye]

I flashed ArchARM on my PinebookPro and everything has been working great except for no sound. The PBP's previous owner says he had sound working on it, so seems to be a software issue. I tried:

Code:

# dmesg | grep sound
[    1.879278]   No soundcards found.
[    6.737158] input: rockchip,es8316-codec Headphones as /devices/platform/es8316-sound/sound/card0/input9

I realize ArchARM is unsupported for the PBP and sound will likely work if I just flash to a different OS, but is there any low hanging fruit to have the system to check for the soundcard before I give up on Arch?

[jiyong]

Manjaro is based on Arch and has working sound.
So it might be some kernel module, but I never tried Arch.