Disable the raid456 kernel module to prevent loosing wm8960audio
Installing the mdadm package disables the wm8960audio sound card with these errors on dmesg: fsl-sai 308b0000.sai: Missing dma channel for stream: 0 fsl-sai 308b0000.sai: ASoC: error at snd_soc_pcm_component_new on 308b0000.sai: -22 fsl-asoc-card sound: ASoC: can't create pcm HiFi :-22 fsl-asoc-card sound: error -EINVAL: snd_soc_register_card failed fsl-asoc-card: probe of sound failed with error -22 It is not clear why this happens and the proper solution needs more investigation. Until then, disabling the raid456 module will restore audio at the cost of disabling raid.