No data output through I2S interface

Products Support DragonBoard410c
#1

Hi All,

I recently followed this post to enable I2S interface:
https://www.96boards.org/forums/topic/enable-i2s-audio-path/

After setting tinymix and run tinyplay,
I can get WS and SCK clock signal from pin 110 and 113,
but nothing from DATA0 (pin 114) line.

Anyone know how to fix this?

Thanks,
Kevin