Sorry for my ignorance as i am just getting to learn about kernel modifications.
I am trying to build a minimal image with audio support for analog and if possible I2s as well, for apq8016 based DB410 and eragon410.
In eragon I commented out the “mdss_dsi0” part from the dts posted at https://pastebin.com/FmvL2J0K.
The device booted fine but when i tried to enable microphone it gave me error
root@linaro-developer:~# amixer sset ‘RX1 MIX1 INP1’ 'RX1’
amixer: Unable to find simple control ‘RX1 MIX1 INP1’,0
root@linaro-developer:~# amixer sset ‘RX2 MIX1 INP1’ 'RX2’
amixer: Unable to find simple control ‘RX2 MIX1 INP1’,0
It could be that the audio and display might be unrelated but it would be of great help if you can confirm that i am heading in the right direction?