[alsa-devel] ASoC: fsl_ssi: How do I gracefully restart after a channel slip is detected?

Hi Again, I'm definitely making progress towards a fully working FSL SSI port in TDM mode. The TX seems to be fairly robust. However, there is a new problem now. The Rx can overrun, and what happens, I get an Rx channel slip. The DMA consuming data from the fifo is out of sync.

I can detect this with the Rx overrun ISR. The question is, how do I restart everything gracefully? I somehow need to tell the DMA to restart on a frame boundary, and I need to restart the SSI, correct?

I don't see any similar method to do this in the ESAI driver.

Or perhaps I'm missing something and there is a better way to avoid the slip in the first place?

Thanks again, -Caleb