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

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Message-ID: <abcbe390-45a8-6183-56a8-f9f751e84f49@kernel.org>
Date:   Fri, 25 Mar 2022 14:05:45 +0200
From:   Roger Quadros <rogerq@...nel.org>
To:     Krzysztof Kozlowski <krzk@...nel.org>, miquel.raynal@...tlin.com,
        robh+dt@...nel.org
Cc:     richard@....at, vigneshr@...com, kishon@...com, nm@...com,
        linux-mtd@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] dt-bindings: mtd: ti,elm: Add support for AM64 ELM



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@...nel.org>
>> ---
>>  .../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.

> 
>> +
>>  additionalProperties: false
>>  
>>  examples:
> 
> 
> Best regards,
> Krzysztof

cheers,
-roger