[BUG][APL] pause-resume tests xrun on UP2 with pcm512x HiFiBerry cards / topology

[lyakh]

Describe the bug
The pcm512x topology hasn't been tested by CI for some time. Having re-added it to daily tests, pause-resume tests showed a regression. It is supposedly related to that topology's non-traditional mixer placement in the pipeline and to recent changes in trigger processing.

To Reproduce

TPLG=/lib/firmware/intel/sof-tplg/sof-apl-pcm512x.tplg MODEL=APL_UP2_PCM512X sof-test/test-case/check-pause-resume.sh -c 100 -m playback
or
TPLG=/lib/firmware/intel/sof-tplg/sof-apl-pcm512x.tplg MODEL=APL_UP2_PCM512X ~/sof-test/test-case/multiple-pause-resume.sh -r 50

Reproduction Rate
Seems easy enough to reproduce. E.g. at the above link it happened on 18th / 19th iteration

Expected behavior
pipelines with embedded forking components like mixers should work too.

Impact
This is also relevant for QuickBuild CI tests

Environment

1. Branch name and commit hash of the 2 repositories: sof (firmware/topology) and linux (kernel driver).
   • Kernel: sof-dev
   • SOF: main
2. Name of the topology file
   • Topology: sof-apl-pcm512x.tplg
3. Name of the platform(s) on which the bug is observed.
   • Platform: UP2

[XiaoyunWu6666]

happened in inner daily 9800
model APL_UP2_PCM512X
testcase check-pause-resume-playback-100

With IO error in console

[etrace]

[      395074.619718] (           0.000000) c0 dma-trace              src/drivers/dw/dma.c:1128 ERROR dw_dma_get_data_size(): xrun detected
[          10.416666] (          10.416666) c0 dma-trace                   src/audio/dai.c:881  ERROR dai_report_xrun(): underrun due to no data available
[          17.812499] (           7.395833) c0 dma-trace                   src/audio/dai.c:748  ERROR comp_underrun(): dev->comp.id = 8, source->avail = 192, copy_bytes = 0
[          45.312498] (          27.499998) c0 dma-trace          ....../pipeline-stream.c:134  ERROR pipeline_copy(): ret = -61, start->comp.id = 8, dir = 1
[          53.072915] (           7.760417) c0 dma-trace          ..../pipeline-schedule.c:183  ERROR pipeline_task(): xrun recovery failed! pipeline is stopped.

[lgirdwood]

@lyakh @XiaoyunWu6666 Does this happen on Zephyr ?

[marc-hb]

Still observed with today's daily run 9986. P1 because it's affecting daily test results. If it's actually low severity explain why and I will SKIP these particular tests on this specific configuration until the bug is fixed.

Kernel Branch: topic/sof-dev
Kernel Commit: thesofproject/linux@03175849
SOF Branch: main
SOF Commit: cf04ada

EDIT: similar to #4434? Answer from Pierre: no. "PCM512x has a mixer and is based on I2S, Volteer/Brya have a demux and a combination of input/output."