On Wed, Sep 7, 2016 at 5:07 AM, Tracy Smith [off-list ref] wrote:

Hello, bus recovery is needed generally speaking because of potential
protocol errors that might cause a failure condition hanging the bus.

It happens frequently during bring-up of new I2C devices because firmware in
I2C controllers fail to handle properly protocol errors.

Can NXP add bus recovery for the LS1021A and LS1043A in a separate patch--
unless there is no HW bus recovery mechanism?

The concern is while fixing I.MX, NXP will fail to fix the driver bus
recovery for the LS1021A and LS1043A and the bus will hang.

If bus recovery is supported on the LS1021A and the LS1043A, a patch should
be provided or added in this patch instead of simply disabling bus recovery.
Request NXP to consider the patch if there is HW support for bus recovery.

I'm not the right person to answer if this is possible.  I will
forward your request to the related developer.

Thanks,
Leo