Jon,
It is working now, it’s really a problem with route. The DT should be:
nvidia,audio-routing =
"z IN1_L", "z IN",
"z IN1_R", "z IN",
"z OUT", "z LOL",
"z OUT", "z LOR";
tlv320aic32x4.c should also be modified as follows:
//SND_SOC_DAPM_DAC("Left DAC", "Left Playback", AIC32X4_DACSETUP, 7, 0),
SND_SOC_DAPM_DAC("Left DAC", "Playback", AIC32X4_DACSETUP, 7, 0),
//SND_SOC_DAPM_DAC("Right DAC", "Right Playback", AIC32X4_DACSETUP, 6, 0),
SND_SOC_DAPM_DAC("Right DAC", "Playback", AIC32X4_DACSETUP, 6, 0),
Jon, Thank you for your help.