i2s connection - Orange/Dac

[cu6apum]

Anybody made it in slave i2s mode yet? Mclk from dac side.

 

[ua3nbw]

Anybody made it in slave i2s mode yet? Mclk from dac side.

I2S slave on mainline 4.13
Russian page I2S slave на mainline ядре OrangePi

 

[Dimdim]

This is very interesting! I suppose that your patch will work on any OrangePi board, as long as it is based on the Allwinner H3?

 

[ua3nbw]

This is very interesting! I suppose that your patch will work on any OrangePi board, as long as it is based on the Allwinner H3?

Yes H2/H3/H5

 

[wealas]

Any chance you can add support for DSD and 768K Pcm? I would like to drive a ESS9038PRO from a NanoPi NEO2 without additional USB-to-I2S converter. If I understand correctly it should just be a matter of bumping up the supported frequencies and adding logic for the correct clock divider.

 

[ua3nbw]

NanoPi-NEO ALSA-Add-rate-defines-for-352k8-and-384k
NanoPi-NEO/NanoPi-NEO-i2s.txt at master * takobozu/NanoPi-NEO * GitHub

 

[wealas]

I cannot find out how the external clock is fed into the board, there is no input on defined? Do I need to modify the board somehow?

 

[wealas]

Nevermind, it's not using an MLCK but expects BCLK and LRCK as input thus the need for not only clock selection but divider selection as well. Now I have to figure out how to make it work with Ian's McFIFO.