On Tue, May 09, 2017 at 02:03:51PM +0200, Joakim Tjernlund wrote:
> Current I2C reset procedure is broken in two ways:
> 1) It only generate 1 START instead of 9 STARTs and STOP.
> 2) It leaves the bus Busy so every I2C xfer after the first
>    fixup calls the reset routine again, for every xfer there after.
> 
> This fixes both errors. Add an iobarrier_rw() when writing the
> I2C control register as well to make sure the register reaches the
> controller in time.
> 
> Signed-off-by: Joakim Tjernlund <joakim.tjernlund@infinera.com>

BTW can this driver be converted to make use of the bus_recovery
infrastructure?