[PATCH v3] i2c: stm32f7: Add atomic_xfer method to driver

[Wolfram Sang]

On Wed, Aug 16, 2023 at 10:05:52AM +0200, Sean Nyekjaer wrote:
> Add an atomic_xfer method to the driver so that it behaves correctly
> when controlling a PMIC that is responsible for device shutdown.
> 
> The atomic_xfer method added is similar to the one from the i2c-mv64xxx
> driver. When running an atomic_xfer a bool flag in the driver data is
> set, the interrupt is not unmasked on transfer start, and the IRQ
> handler is manually invoked while waiting for pending transfers to
> complete.
> 
> Signed-off-by: Sean Nyekjaer <sean at geanix.com>

Applied to for-next, thanks!

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