[PATCH 2/3] i2c: owl: Add support for atomic transfers

[Wolfram Sang]

On Fri, Oct 09, 2020 at 12:44:40AM +0300, Cristian Ciocaltea wrote:
> Atomic transfers are required to properly power off a machine through
> an I2C controlled PMIC, such as the Actions Semi ATC260x series.
> 
> System shutdown may happen with interrupts being disabled and, as a
> consequence, the kernel may hang if the driver does not support atomic
> transfers.
> 
> This functionality is essentially implemented by polling the FIFO
> Status register until either Command Execute Completed or NACK Error
> bits are set.
> 
> Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea at gmail.com>

Applied to for-next, thanks!

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