Re: [PATCH] i2c: stm32f7: Add atomic_xfer method to driver

[Wolfram Sang]

> > Will DMA actually run in atomic mode?

> Atomic is mainly(only) used for writing a single register in the PMIC
> for the stpmic.

And this most probably during shutdown...

> Guess that will not trigger any DMA use.

... so I'd be very surprised if DMA is operational that late. I think we
can rule that out independent of I2C messages to be trasnferred.

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