Re: [PATCH 2/3] dt-bindings: mtd: ti,elm: Add support for AM64 ELM

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On 25/03/2022 13:05, Roger Quadros wrote:
> 
> 
> On 24/03/2022 20:26, Krzysztof Kozlowski wrote:
>> On 23/03/2022 12:18, Roger Quadros wrote:
>>> TI's AM64 SoC has the Error Locator Module. Add compatible and
>>> related properties to support ELM on AM64 SoC.
>>>
>>> Signed-off-by: Roger Quadros <rogerq@xxxxxxxxxx>
>>> ---
>>>  .../devicetree/bindings/mtd/ti,elm.yaml       | 27 ++++++++++++++++++-
>>>  1 file changed, 26 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/Documentation/devicetree/bindings/mtd/ti,elm.yaml b/Documentation/devicetree/bindings/mtd/ti,elm.yaml
>>> index 24ed0fb84204..bc01d35ce605 100644
>>> --- a/Documentation/devicetree/bindings/mtd/ti,elm.yaml
>>> +++ b/Documentation/devicetree/bindings/mtd/ti,elm.yaml
>>> @@ -17,7 +17,9 @@ description:
>>>  properties:
>>>    compatible:
>>>      items:
>>> -      - const: ti,am3352-elm
>>> +      - enum:
>>> +          - ti,am3352-elm
>>> +          - ti,am64-elm
>>>  
>>>    reg:
>>>      maxItems: 1
>>> @@ -25,6 +27,17 @@ properties:
>>>    interrupts:
>>>      maxItems: 1
>>>  
>>> +  clocks:
>>> +    maxItems: 1
>>> +    description: Functional clock.
>>> +
>>> +  clock-names:
>>> +    items:
>>> +      - const: fck
>>> +
>>> +  power-domains:
>>> +    maxItems: 1
>>> +
>>>    ti,hwmods:
>>>      description:
>>>        Name of the HWMOD associated with ELM. This is for legacy
>>> @@ -37,6 +50,18 @@ required:
>>>    - reg
>>>    - interrupts
>>>  
>>> +allOf:
>>> +  - if:
>>> +      properties:
>>> +        compatible:
>>> +          contains:
>>> +            const: ti,am64-elm
>>> +    then:
>>> +      required:
>>> +        - clocks
>>> +        - clock-names
>>> +        - power-domains
>>
>> Are these new properties also valid for am3352?
> 
> No they are not required for am3352-elm. Only required for K3 based platforms like AM64.
> 

I understand they are not required, but I asked if they are valid. IOW,
whether ELM in am3352 also is part of power domain and has clock input?

Best regards,
Krzysztof



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