Re: [PATCH 0/6] i2c-imx-lpi2c: add IPG clock

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On 16/08/2022 11:43, Peng Fan wrote:
>> No. For such patch ABI break is also not allowed in that case. Just make the
>> driver backwards compatible and both problems - non bisectability and ABI
>> break - go away.
> 
> One more point that I am not very clear about  
> "non bisectability and ABI break "
> 
> ABI, I suppose you mean dt-binding, right?
> The I2C bindings and dts update will go through different tree, I think. So
> dtbs_check may fail considering the PR merge order.

ABI break means breaking Application Binary Interface, so out of tree
DTS conforming to old bindings stop working with new kernel.

ABI is described by bindings and implemented by driver. You broke it in
the driver.

Best regards,
Krzysztof



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