Re: [RFC PATCH 2/4] i2c: add docs to clarify DMA handling

[Wolfram Sang]

> So it won't fall back to PIO if CONFIG_DMA_API_DEBUG is enabled?

No, it will complain loudly with more details about the same things (and
some more). But for that to do, it cannot fall back to PIO.

Otherwise, you might get the idea that all is fine since you enabled
CONFIG_DMA_API_DEBUG but miss that most of you transfers fell back to
PIO. That was my thinking...

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