[AstroNoise58]

I assume you mean AD85050 (rather than AD8255). And yes, the last paragraph before "Going all-in" is about the idea of driving the I2S. But the I2C config sent to the ESMT chip would have had to be reverse-engineered as well...

[mysteria]

Fixed, thanks. Somehow the title of the datasheet pdf is AD8255 despite the chip being an AD85050.