[RFC PATCH 0/3] ASoC: add dailink .exit() callback

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While looking at reboot issues and module load/unload tests, I found
out some resources allocated in the dailink .init() callback are not
properly released - there is no existing mechanism in the soc-core to
do so.

I experimented with different solutions and the simplest seems to add
an .exit() callback. However things are not fully balanced and I could
use feedback on the approach.

This patchset includes two examples where this solution is useful, but
we have additional ones identified by Ranjani.

Pierre-Louis Bossart (3):
  ASoC: soc-core: introduce exit() callback for dailinks
  ASoC: Intel: bdw-rt5677: fix module load/unload issues
  ASoC: Intel: kbl-rt5660: use .exit() dailink callback to release gpiod

 include/sound/soc.h                 |  3 +++
 sound/soc/intel/boards/bdw-rt5677.c | 14 ++++++++++++--
 sound/soc/intel/boards/kbl_rt5660.c | 13 +++++++++++--
 sound/soc/soc-core.c                |  8 +++++++-
 4 files changed, 33 insertions(+), 5 deletions(-)

-- 
2.20.1




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