[AudioI] Nothing works on RPi3b+

[Ian McKellar]

I bought an AudioInjector Zero and I can't get it to work on the hardware I
have.

I believe I have it configured correctly. I'm running Linux 5.4.70-v7+ and
have

dtparam=i2c_arm=on
dtparam=i2s=on
dtoverlay=audioinjector-wm8731-audio

in /boot/config.txt

During boot dmesg gets:
[    8.939739] audioinjector-stereo soc:sound: ASoC: failed to init link
AudioInjector audio: -517
[    8.939762] audioinjector-stereo soc:sound: snd_soc_register_card failed
(-517)
[    9.295473] audioinjector-stereo soc:sound: ASoC: failed to init link
AudioInjector audio: -517
[    9.295496] audioinjector-stereo soc:sound: snd_soc_register_card failed
(-517)
[    9.330667] audioinjector-stereo soc:sound: ASoC: failed to init link
AudioInjector audio: -517
[    9.330692] audioinjector-stereo soc:sound: snd_soc_register_card failed
(-517)
[   10.051168] wm8731 1-001a: Assuming static MCLK
[   10.051223] wm8731 1-001a: 1-001a supply AVDD not found, using dummy
regulator
[   10.051357] wm8731 1-001a: 1-001a supply HPVDD not found, using dummy
regulator
[   10.051452] wm8731 1-001a: 1-001a supply DCVDD not found, using dummy
regulator
[   10.051574] wm8731 1-001a: 1-001a supply DBVDD not found, using dummy
regulator
[   10.067882] audioinjector-stereo soc:sound: wm8731-hifi <-> 3f203000.i2s
mapping ok

But when I try to play something, eg: aplay /usr/share/sounds/alsa/Noise.wav
it hangs and doesn't appear to be actually playing anything. Also dmesg
gets:
[  224.002383] bcm2835-i2s 3f203000.i2s: I2S SYNC error!

Any ideas? Might I have done a terrible job soldering the pin socket?

Ian
-- 
Ian McKellar <http://ian.mckellar.org/>
ian at mckellar.org - http://twitter.com/ian
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