Re: [PATCHv4 1/3] dt-bindings: mmc: synopsys-dw-mshc: document "altr,sysmgr-syscon"

From: Krzysztof Kozlowski
Date: Thu Sep 29 2022 - 07:13:26 EST


On 29/09/2022 13:04, Ulf Hansson wrote:
>>> So this change will not be backwards compatible with existing DTBs. I
>>> noticed that patch2 updates the DTS files for the arm64 platforms, but
>>> there seems to be some arm32 platforms too. Isn't this going to be a
>>> problem?
>>>
>>
>> The backwards compatibility is actually expressed by the driver. If the
>> driver keeps ABI, we can change bindings so that all DTS are being
>> updated to pass the checks.
>
> Right.
>
> So, I should probably have responded to patch3 instead, as backwards
> compatibility doesn't seem to be supported, unless I am mistaken.

Yes, it looks like

Best regards,
Krzysztof