[1.] One line summary of the problem: Linux 6.17.4 - no audio on Hardkernel Odroid Go Ultra

[2.] Full description of the problem/report: I am working on upgrading ROCKNIX on the Odroid Go Ultra from Linux 6.12.43 to 6.17.4 (via 6.16.9 as an interim step for testing) - PR https://github.com/ROCKNIX/distribution/pull/1898

Kernel config was updated via 'olddefconfig' from 6.12.43 to 6.17.4

Audio works fine with 6.12.43, works fine (after a wireplumber restart, not on first boot) with 6.16.9, but does not work at all with 6.17.4.

No sound cards / sinks picked up by alsa / pactl / wpctl.

dmesg log is attached (desg.txt), important messages are:

[    1.916788] ALSA device list:
[    1.916818]   No soundcards found.
...
[   17.645092] platform sound: deferred probe pending: (reason unknown)
[   17.645109] platform ff642340.audio-controller: deferred probe pending: axg-tdmin: failed to get reset
[   17.645115] platform ff642540.audio-controller: deferred probe pending: axg-tdmout: failed to get reset

[3.] Keywords (i.e., modules, networking, kernel): amlogic, meson, axg, sound, audio

[4.] Kernel information
[4.1.] Kernel version (from /proc/version): Linux version 6.17.4 (docker@323dec686e20) (aarch64-rocknix-linux-gnueabi-gcc-14.2.0 (GCC) 14.2.0, GNU ld (GNU Binutils) 2.44) #1 SMP PREEMPT Wed Oct 22 23:21:15 UTC 2025
[4.2.] Kernel .config file: see attached .config

[5.] Most recent kernel version which did not have the bug: 6.16.9

[6.] Output of Oops.. message (if applicable) with symbolic information
      resolved (see Documentation/admin-guide/bug-hunting.rst)

[7.] A small shell script or example program which triggers the
      problem (if possible)

[8.] Environment

[8.1.] Software (add the output of the ver_linux script here)

Linux S922X 6.17.4 #1 SMP PREEMPT Wed Oct 22 23:21:15 UTC 2025 aarch64 GNU/Linux

Util-linux          	799088
Mount               	799088
Module-init-tools   	34.2
E2fsprogs           	1.47.0
Linux C++ Library   	6.0.33
Dynamic linker (ldd)	2.40
Procps              	4.0.5
Udev                	255
Modules Loaded      	cdc_ether cdc_ncm cfg80211 drm_shmem_helper gpu_sched nfnetlink ntfs3 overlay panfrost pkcs8_key_parser rfkill rocknix_joypad rtc_meson_vrtc usbnet zram zsmalloc


[8.2.] Processor information (from /proc/cpuinfo): see attached cpuinfo.txt
[8.3.] Module information (from /proc/modules): see attached modules.txt
[8.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem): see attached iomem.txt
[8.5.] PCI information ('lspci -vvv' as root): N/A - no PCI bus
[8.6.] SCSI information (from /proc/scsi/scsi): N/A - no SCSI

[8.7.] Other information that might be relevant to the problem
        (please look in /proc and include all information that you
        think to be relevant):

- see attached alsa-info.txt.XXXX7OPGP3 (no soundcards found)
- see attached decompiled devicetree pulled from the Odroid Go Ultra

[X.] Other notes, patches, fixes, workarounds:

In testing this issue, I have removed any downstream patches to relevant devicetree nodes, these results are purely with the 6.17.4 mainline devicetrees.

I apologize if I have not filled this issue report correctly, this is my first attempt.

Regards,

John Williams
porschemad911@gmail.com