Add overlay files and activate devicetree file for NanoPi NEO2 featuring Allwinner H5 ARM64 core. To enable sound, dma and codec drivers are enabled for build.
Tested on a NanoPI NEO2 mounted with NanoHat OLED. These functions did work so far:
Few nits on kernel config, dtso looks good.
You should add a new device a10_codec too
make this depend on sound a10_codec
that should depend on a31_dmac
This one too
Update according to comments.
Please bear with me if this is still not correct, i'm not that familiar with the conf/files*-files
Needed to add dma-device to kernel config, otherwise dsp device was not probed.
Will do a build test later today and commit this.