[PATCH] ASoC: SOF: ipc4-topology: add SoundWire/ALH aggregation support

[Mark Brown]

On Tue, 14 Jun 2022 17:26:30 +0800, Bard Liao wrote:
> Some SoundWire hardware topologies rely on different amplifiers or
> capture devices connected on different links. These devices need to be
> 'aggregated', remain synchronized and be handled as a single logical
> device.
> 
> In the IPC3 solution, the aggregation for amplifiers was handled by a
> firmware 'demux' component. In the IPC4 solution, the demux component is
> not needed, the gateway component can handle multiple ALH/DMA transfers
> at the same time. This change makes the topology slightly more complicated
> in that only one ALH DAI will be connected in the topology with the
> gateway. The other DAIs that are part of the 'aggregated' dailink are not
> shown in the DAPM graph as connected to the gateway, but they will however
> be activated thanks to a feature in soc-dapm.c where events are forwarded
> to all DAIs in the dailink (see soc_dapm_stream_event).
> 
> [...]

Applied to

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

Thanks!

[1/1] ASoC: SOF: ipc4-topology: add SoundWire/ALH aggregation support
      commit: a150345aa758492e05d2934f318ce7c2566b1cfe

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.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

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Thanks,
Mark