Re: [PATCH 1/1] dt-bindings: soc: imx: add fsl,aipi-bus and fsl,emi-bus

[Krzysztof Kozlowski <krzk@kernel.org>]

On 12/02/2026 16:20, Frank Li wrote:
> On Thu, Feb 12, 2026 at 12:59:45PM +0100, Krzysztof Kozlowski wrote:
>> On Wed, Feb 11, 2026 at 05:19:35PM -0500, Frank Li wrote:
>>> Add fsl,aipi-bus and fsl,emi-bus for i.MX1, i.MX2*.
>>>
>>> Signed-off-by: Frank Li <Frank.Li@nxp.com>
>>> ---
>>>  Documentation/devicetree/bindings/bus/fsl,spba-bus.yaml | 4 ++++
>>>  1 file changed, 4 insertions(+)
>>>
>>> diff --git a/Documentation/devicetree/bindings/bus/fsl,spba-bus.yaml b/Documentation/devicetree/bindings/bus/fsl,spba-bus.yaml
>>> index 00bbde203f598..4808065fc9115 100644
>>> --- a/Documentation/devicetree/bindings/bus/fsl,spba-bus.yaml
>>> +++ b/Documentation/devicetree/bindings/bus/fsl,spba-bus.yaml
>>> @@ -26,8 +26,10 @@ select:
>>>      compatible:
>>>        contains:
>>>          enum:
>>> +          - fsl,aipi-bus
>>>            - fsl,aips
>>>            - fsl,emi
>>> +          - fsl,emi-bus
>>>            - fsl,spba-bus
>>>    required:
>>>      - compatible
>>> @@ -39,8 +41,10 @@ properties:
>>>    compatible:
>>>      items:
>>>        - enum:
>>> +          - fsl,aipi-bus
>>>            - fsl,aips
>>>            - fsl,emi
>>> +          - fsl,emi-bus
>>
>> Why exactly? There is already emi, although not in my next, so don't do
>> it per one compatible.
>>
>> https://lore.kernel.org/all/20260201011913.2419626-1-Frank.Li@nxp.com/
> 
> It is really old chips. some mx3/5 use fsl,emi. but imx2 use fsl,emi-bus.
> it is not used in current kernel source. Consider it is really old, over
> 20 years, Just allow it to avoid CHECK_DTBS warning.

So mention in the commit msg that this is for existing old DTS. I
understand the list will not grow and compatibles will not be used in
any new designs, so it's fine.

Best regards,
Krzysztof