Re: [PATCH v13 1/2] dt-bindings: mmc: mtk-sd: increase reg items

[Krzysztof Kozlowski]

On 01/04/2022 04:18, Tinghan Shen wrote:
> Hi Matthias,
> 
> On Thu, 2022-03-31 at 12:54 +0200, Matthias Brugger wrote:
>>
>> On 30/03/2022 11:45, Tinghan Shen wrote:
>>> MediaTek has a new version of mmc IP since mt8183. Some IO registers
>>> are moved to top to improve hardware design and named as "host top
>>> registers".
>>>
>>> Add host top register in the reg binding description for mt8183 and
>>> successors.
>>>
>>> Signed-off-by: Wenbin Mei <wenbin.mei@xxxxxxxxxxxx>
>>> Signed-off-by: Tinghan Shen <tinghan.shen@xxxxxxxxxxxx>
>>> ---
>>>   Documentation/devicetree/bindings/mmc/mtk-sd.yaml | 15 ++++++++++++++-
>>>   1 file changed, 14 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
>>> b/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
>>> index 297ada03e3de..2a2e9fa8c188 100644
>>> --- a/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
>>> +++ b/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
>>> @@ -40,7 +40,10 @@ properties:
>>>             - const: mediatek,mt8183-mmc
>>>   
>>>     reg:
>>> -    maxItems: 1
>>> +    minItems: 1
>>
>>  From my understanding adding minItems is correct, but you need to add also 
>> maxItems: 2 as there can't be more then two register entries.
>>
>> Regards,
>> Matthias
>>
> 
> After add "maxItems: 2", I get following message when doing dt_binding_check.
> from this message, it looks like that maxItems is not necessary.


That's correct, you don't need them because "items" defines it.


Best regards,
Krzysztof