[PATCH v0 linux master] i2c/busses: Avoid i2c interrupt status clear race condition.

Ryan Chen ryan_chen at aspeedtech.com
Tue May 5 11:52:01 AEST 2020

> > And is there maybe a Fixes: tag for it?
> > [Ryan Chen] Yes it is a fix patch.
> I meant this (from submitting-patches.rst):

>It fixes the original implementation of the driver basically. It's just a classic posted-write fix. The write to clear the pending interrupt is asynchronous, so you can get spurrious ones if you return from the handler before it has percolated to the HW.

>I assume it's just more visible on the 2600 because of the cores are significantly faster but the IO bus is still as dumb.

>Ryan: You could always add a Fixed-by: tag that specifies the commit that added the initial driver...
[Ryan Chen] Thanks Ben.

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