pcm5102a playback device not found on Pine64 (A64)

Hello,

I have a Pine64 board and recently added an audio POT with the pcm5102a chipset.

It is rather difficult to get the board working/recognized. I found info on the forum saying one has to do stuff with the overlay system but only for other boards than the Pine64 and I can't get it right.

aplay -l:

root@pine64:~# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: sun50ia64audio [sun50i-a64-audio], device 0: 1c22c00.dai-sun8i-codec-aif1 sun8i-codec-aif1-0 [1c22c00.dai-sun8i-codec-aif1 sun8i-codec-aif1-0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: sun50ia64hdmi [sun50i-a64-hdmi], device 0: 1c22800.i2s-i2s-hifi i2s-hifi-0 [1c22800.i2s-i2s-hifi i2s-hifi-0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

I have edited the dtc tree and activated i2s@1c22000:

                i2s@1c22000 {
                        #sound-dai-cells = <0x00>;
                        compatible = "allwinner,sun50i-a64-i2s\0allwinner,sun8i-h3-i2s";
                        reg = <0x1c22000 0x400>;
                        interrupts = <0x00 0x0d 0x04>;
                        clocks = <0x02 0x3c 0x02 0x52>;
                        clock-names = "apb\0mod";
                        resets = <0x02 0x27>;
                        dma-names = "rx\0tx";
                        dmas = <0x2f 0x03 0x2f 0x03>;
                        status = "okay";
                        phandle = <0x7c>;
                };

And the module shows up with lsmod:

snd_soc_simple_card    24576  0
snd_soc_simple_card_utils    24576  1 snd_soc_simple_card
cpufreq_dt             20480  0
sch_fq_codel           24576  2
snd_soc_pcm5102a       16384  0

But now I am stuck. What do I have to do to get this board working?

Thanks in advance for any help.

Cheers,

Joost