[PATCH v2 0/2] ASoC: meson: aiu: fix duplicate debugfs directory error

Heiner Kallweit hkallweit1 at gmail.com
Wed Mar 9 12:20:01 PST 2022


On a S905W-based system I get the following error:
debugfs: Directory 'c1105400.audio-controller' with parent 'P230-Q200' already present!

Turned out that multiple components having the same name triggers this
error in soc_init_component_debugfs(). The proposed solution allows
other drivers to adopt the same approach with minimal effort.
With the patch the error is gone and that's the debugfs entries.

/sys/kernel/debug/asoc/P230-Q200/acodec:c1105400.audio-controller
/sys/kernel/debug/asoc/P230-Q200/hdmi:c1105400.audio-controller
/sys/kernel/debug/asoc/P230-Q200/cpu:c1105400.audio-controller

v2:
- Reworked approach based on [0]

[0] https://www.spinics.net/lists/arm-kernel/msg960881.html

Heiner Kallweit (2):
  ASoC: soc-core: add debugfs_prefix member to snd_soc_component_driver
  ASoC: meson: aiu: fix duplicate debugfs directory error

 include/sound/soc-component.h     | 4 ++++
 sound/soc/meson/aiu-acodec-ctrl.c | 3 +++
 sound/soc/meson/aiu-codec-ctrl.c  | 3 +++
 sound/soc/meson/aiu.c             | 3 +++
 sound/soc/soc-core.c              | 5 +++++
 5 files changed, 18 insertions(+)

-- 
2.35.1




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