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