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Unlike normal pipelines, chain-dma PCM DMA is stopped when PCM is put on pause. If host doesn't stop the DMA, this will trigger errors on FW. WIP implementation, this is a crude way to pass the chain-dma usage flag from IPC4 specific code, via generic PCM code to HDA host DMA handling. Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
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This does seem to fix thesofproject/sof#8792 . Either we need to change the FW implementation, or a lot of clean up and merge this in kernel driver. |
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Closing. This fixes the issue, but current understanding is that the fix should be on FW side. |
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Unlike normal pipelines, chain-dma PCM DMA is stopped when PCM is put on pause. If host doesn't stop the DMA, this will trigger errors on FW.
WIP implementation, this is a crude way to pass the chain-dma usage flag from IPC4 specific code, via generic PCM code to HDA host DMA handling.