I understand that I2S2 in Hikey-960 is connected three way with Soc/BT/HDMI. Typically Soc works as master to send I2S to HDMI receiver. I believe BT is disabled in this case. But if I want to connect I2S2 lines to an external codec, one way is to use the I2S lines in BT part (WL1837MOD).
Is there a way where, when SoC is playing I2S2 to HDMI and we can still use I2S lines from BT? Can BT be put in some disabled/bypass mode where I2S2 played from Soc can be used at BT?
Or is the only way to get I2S output from BT is to make BT the master and play audio using it?
If there is a workaround to be able to tap I2S2 at BT, that would the great.