8MIC-RPI-MX8 no sound Hardknott-5.10.52

[Antares]

Hello,

I am using a imx8mmevk with a 8mic-rpi-mx8 microphone array. I was able to record audio data using zeus-5.4.70 and gatesgarth-5.10.9.

But now hardknott-5.10.52 is available, I would like to update my current board and I am not able to record audio data.

I am using the same fdt_file as before (imx8mm-evk-8mic-revE.dtb) with the same microphone and same evalution kit. Audio playback is still working while Capture is generating empty files.

Do you know if anything related to the 8MIC-RPI-MX8 changed on the imx-linux-hardknott branch ?

Best regards,

Loic

[AldoG · Accepted solution]

Hello,

Please note that the way to select the device tree in recent releases has changed, previously you'll have to set/edit fdt_file env variable, now the env variable name is fdtfile.

Please try this at uboot level:

> setenv fdtfile imx8mm-evk-8mic-revE.dts

> saveenv

This should select the device tree for the 8MIC-RPI-MX8 board.

Best regards,
Aldo.

[Antares]

Hi Aldo,

I missed this information, it solved my issue.

Thank you very much for the help !

Best regards,

Loic