[PATCH] i2c: brcmstb: Add support for atomic transfers

[Florian Fainelli]

On 10/11/2023 2:57 AM, Marek Szyprowski wrote:
> On 09.10.2023 22:41, Florian Fainelli wrote:
>> On 10/6/23 07:41, Marek Szyprowski wrote:
>>> Add support for atomic transfers using polling mode with interrupts
>>> intentionally disabled to get rid of the warning introduced by commit
>>> 63b96983a5dd ("i2c: core: introduce callbacks for atomic transfers")
>>> during system reboot and power-off.
>>
>> Is there an existing system that you have access to which needs atomic
>> transfer support, or is this a forward looking change?
> 
> Frankly speaking I've observed the mentioned warning during system
> reboot on RaspberryPi4 with linux-next kernel compiled from
> multi_v7_defconfig. It looks that this driver is used by VC4 DRM for
> DDC. This issue doesn't look critical, but the fix seems to be trivial,
> thus my patch.

Makes sense, thanks for confirming this fixes an actual issue you have 
seen and providing a fix for it.
-- 
Florian
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