Re: [PATCH v3 1/3] dt-bindings: dma: snps,dw-axi-dmac: Add compatible string for Agilex5

[Romli, Khairul Anuar]

On 11/12/2025 11:46 pm, Rob Herring wrote:
> On Thu, Dec 11, 2025 at 12:40:36PM +0800, Khairul Anuar Romli wrote:
>> The address bus on Agilex5 is limited to 40 bits. When SMMU is enable this
>> will cause address truncation and translation faults. Hence introducing
>> "altr,agilex5-axi-dma" to enable platform specific configuration to
>> configure the dma addressable bit mask.
>>
>> Add a fallback capability for the compatible property to allow driver to
>> probe and initialize with a newly added compatible string without requiring
>> additional entry in the driver.
>>
>> Add dma-ranges to the binding schema to allow specifying DMA address
>> mapping between the controller and its parent bus.
>>
>> Signed-off-by: Khairul Anuar Romli <khairul.anuar.romli@xxxxxxxxxx>
>> ---
>> Changes in v3:
>> 	- Simple dma-ranges property with true and without description
>> Changes in v2:
>> 	- Add dma-ranges
>> ---
>>   .../bindings/dma/snps,dw-axi-dmac.yaml           | 16 +++++++++++-----
>>   1 file changed, 11 insertions(+), 5 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
>> index a393a33c8908..1f4dcf3092c3 100644
>> --- a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
>> +++ b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
>> @@ -17,11 +17,15 @@ allOf:
>>   
>>   properties:
>>     compatible:
>> -    enum:
>> -      - snps,axi-dma-1.01a
>> -      - intel,kmb-axi-dma
>> -      - starfive,jh7110-axi-dma
>> -      - starfive,jh8100-axi-dma
>> +    oneOf:
>> +      - enum:
>> +          - snps,axi-dma-1.01a
>> +          - intel,kmb-axi-dma
>> +          - starfive,jh7110-axi-dma
>> +          - starfive,jh8100-axi-dma
>> +      - items:
>> +          - const: altr,agilex5-axi-dma
>> +          - const: snps,axi-dma-1.01a
>>   
>>     reg:
>>       minItems: 1
>> @@ -104,6 +108,8 @@ properties:
>>       minimum: 1
>>       maximum: 256
>>   
>> +  dma-ranges: true
>> +
> 
> You no longer need this because it is in the bus node.
> 
> Rob

I will remove the dma-ranges property in the next revision.

Thanks.

Khairul