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authorPeter Ujfalusi2024-04-09 14:00:36 +0300
committerMark Brown2024-04-09 13:24:04 +0100
commit7211814f2adcf376b8db6321447a9725c33b6ae7 (patch)
tree085eda54f0d64f2b50b4f1136688d71801683996 /virt/kvm
parent551af3280c16166244425bbb1d73028f3a907e1f (diff)
ASoC: SOF: ipc4-pcm: Do not reset the ChainDMA if it has not been allocated
The ChainDMA operation differs from normal pipelines that it is only created when the stream started, in fact a PCM using ChainDMA has no pipelines, modules. To reset a ChainDMA, it needs to be first allocated in firmware. When PulseAudio/PipeWire starts, they will probe the PCMs by opening them, check hw_params and then close the PCM without starting audio. Unconditionally resetting the ChainDMA can result the following error: ipc tx : 0xe040000|0x0: GLB_CHAIN_DMA ipc tx reply: 0x2e000007|0x0: GLB_CHAIN_DMA FW reported error: 7 - Unsupported operation requested ipc error for msg 0xe040000|0x0 sof_pcm_stream_free: pcm_ops hw_free failed -22 Add a new chain_dma_allocated flag to sof_ipc4_pcm_stream_priv to store the ChainDMA allocation state and use this flag to skip sending the reset if the ChainDMA is not allocated. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Link: https://msgid.link/r/20240409110036.9411-5-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
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