[PATCH 0/6] ASoC : soc-pcm: fix trigger race conditions with shared BE

[Mark Brown]

On Tue, 7 Dec 2021 11:37:39 -0600, Pierre-Louis Bossart wrote:
> We've been adding a 'deep buffer' PCM device to several SOF topologies
> in order to reduce power consumption. The typical use-case would be
> music playback over a headset: this additional PCM device provides
> more buffering and longer latencies, leaving the rest of the system
> sleep for longer periods. Notifications and 'regular' low-latency
> audio playback would still use the 'normal' PCM device and be mixed
> with the 'deep buffer' before rendering on the headphone endpoint. The
> tentative direction would be to expose this alternate device to
> PulseAudio/PipeWire/CRAS via the UCM SectionModifier definitions.
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/6] ASoC: soc-pcm: use GFP_ATOMIC for dpcm structure
      commit: d8a9c6e1f6766a16cf02b4e99a629f3c5512c183
[2/6] ASoC: soc-pcm: align BE 'atomicity' with that of the FE
      commit: bbf7d3b1c4f40eb02dd1dffb500ba00b0bff0303
[3/6] ASoC: soc-pcm: Fix and cleanup DPCM locking
      commit: b7898396f4bbe160f546d0c5e9fa17cca9a7d153
[4/6] ASoC: soc-pcm: serialize BE triggers
      commit: b2ae80663008a7662febe7d13f14ea1b2eb0cd51
[5/6] ASoC: soc-pcm: test refcount before triggering
      commit: 848aedfdc6ba25ad5652797db9266007773e44dd
[6/6] ASoC: soc-pcm: fix BE handling of PAUSE_RELEASE
      commit: 3aa1e96a2b95e2ece198f8dd01e96818971b84df

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

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Thanks,
Mark