TLV320AIC3104: Codec(TLV320AIC3104) no sound during play a audio

Part Number: TLV320AIC3104

We use TLV320AIC3104 with our device which develep with S100,TLV320AIC3104 as slave. audio and codec driver init OK, but when we play a sound,

we checked the power IOVDD=3.3V,AVDD=3.3V,DRVDD=3.3V and DVDD =1.8V,

Then check the clk MCLK,BCLK,WCLK is OK,

DIN no output, DOUT have signal.

We played a sine wave via command:

speaker-test -t sine -f 1000 -c 2

But when measuring RIGHT_LOP, RIGHT_LOM, LEFT_LOP, and LEFT_LOM with an oscilloscope, no signals were detected. Upon further inspection, the register values were compared with those of a reference unit and found to be consistent. Could you please help identify where the issue might be?