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Fixes for HD-Audio DMA stopping - #3167
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The recommendation for HD-Audio DMA stopping programming sequence is to stop/pause the DMA in the FW after the host has cleared the RUN bit.
The FW PR thesofproject/sof#4844 changes the sequence to not stop the host and link DMA during STOP trigger IPC. The host DMA is stopped when the PCM_FREE IPC which is after the host clears the RUN bit.
For link DMA, the host uses the DAI_CONFIG IPC to stop the DMA which is sent after the RUN bit is cleared.
For more detailed info on the programming sequence, please refer to: thesofproject/sof@f9a9802