ASoC: SOF: ipc4-topology: Advertise passthrough capable PCMs (using ChainDMA)
authorPeter Ujfalusi <peter.ujfalusi@linux.intel.com>
Fri, 26 Apr 2024 15:39:02 +0000 (10:39 -0500)
committerMark Brown <broonie@kernel.org>
Mon, 29 Apr 2024 15:16:36 +0000 (00:16 +0900)
commiteed4872a4220f30de37aeca695d2881630410b66
tree3848bc2d6b2e50dc2ccfda1846d5e8ae93082efb
parent7ff01ca730f240811c13d9c3f8f8030211b3c911
ASoC: SOF: ipc4-topology: Advertise passthrough capable PCMs (using ChainDMA)

If a PCM is set to use ChainDMA then add it to the card->components string
after a marker of iec61937-pcm:, for example on current HDA platforms where
HDMI is set to use ChainDMA:
iec61937-pcm:5,4,3 (the order of the PCM ids can differ)

UCM is expected to parse and use this property to allow applications to
use bytestream passthrough in a standard way.

Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20240426153902.39560-6-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
sound/soc/sof/ipc4-topology.c