linux-kernel - Re: [PATCH v3 1/3] dt-bindings: can: fsl,flexcan: add S32G2/S32G3 SoC support

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Message-ID: <72258a57-6c65-4885-af00-0f18f27239e8@oss.nxp.com>
Date: Fri, 29 Nov 2024 17:20:31 +0200
From: Ciprian Marian Costea <ciprianmarian.costea@....nxp.com>
To: Marc Kleine-Budde <mkl@...gutronix.de>
Cc: Vincent Mailhol <mailhol.vincent@...adoo.fr>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, linux-can@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 NXP S32 Linux <s32@....com>, imx@...ts.linux.dev,
 Christophe Lizzi <clizzi@...hat.com>, Alberto Ruiz <aruizrui@...hat.com>,
 Enric Balletbo <eballetb@...hat.com>
Subject: Re: [PATCH v3 1/3] dt-bindings: can: fsl,flexcan: add S32G2/S32G3 SoC
 support

On 11/29/2024 4:37 PM, Marc Kleine-Budde wrote:
> On 29.11.2024 16:25:33, Ciprian Costea wrote:
>> From: Ciprian Marian Costea <ciprianmarian.costea@....nxp.com>
>>
>> Add S32G2/S32G3 SoCs compatible strings.
>>
>> A particularity for these SoCs is the presence of separate interrupts for
>> state change, bus errors, MBs 0-7 and MBs 8-127 respectively.
>>
>> Increase maxItems of 'interrupts' to 4 for S32G based SoCs and keep the
>> same restriction for other SoCs.
>>
>> Also, as part of this commit, move the 'allOf' after the required
>> properties to make the documentation easier to read.
>>
>> Signed-off-by: Ciprian Marian Costea <ciprianmarian.costea@....nxp.com>
>> ---
>>   .../bindings/net/can/fsl,flexcan.yaml         | 46 +++++++++++++++++--
>>   1 file changed, 42 insertions(+), 4 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/net/can/fsl,flexcan.yaml b/Documentation/devicetree/bindings/net/can/fsl,flexcan.yaml
>> index 97dd1a7c5ed2..10b658e85ef2 100644
>> --- a/Documentation/devicetree/bindings/net/can/fsl,flexcan.yaml
>> +++ b/Documentation/devicetree/bindings/net/can/fsl,flexcan.yaml
>> @@ -10,9 +10,6 @@ title:
>>   maintainers:
>>     - Marc Kleine-Budde <mkl@...gutronix.de>
>>   
>> -allOf:
>> -  - $ref: can-controller.yaml#
>> -
>>   properties:
>>     compatible:
>>       oneOf:
>> @@ -28,6 +25,7 @@ properties:
>>             - fsl,vf610-flexcan
>>             - fsl,ls1021ar2-flexcan
>>             - fsl,lx2160ar1-flexcan
>> +          - nxp,s32g2-flexcan
>>         - items:
>>             - enum:
>>                 - fsl,imx53-flexcan
>> @@ -43,12 +41,21 @@ properties:
>>             - enum:
>>                 - fsl,ls1028ar1-flexcan
>>             - const: fsl,lx2160ar1-flexcan
>> +      - items:
>> +          - enum:
>> +              - nxp,s32g3-flexcan
>> +          - const: nxp,s32g2-flexcan
>>   
>>     reg:
>>       maxItems: 1
>>   
>>     interrupts:
>> -    maxItems: 1
>> +    minItems: 1
>> +    maxItems: 4
>> +
>> +  interrupt-names:
>> +    minItems: 1
>> +    maxItems: 4
>>   
>>     clocks:
>>       maxItems: 2
>> @@ -136,6 +143,37 @@ required:
>>     - reg
>>     - interrupts
>>   
>> +allOf:
>> +  - $ref: can-controller.yaml#
>> +  - if:
>> +      properties:
>> +        compatible:
>> +          contains:
>> +            const: nxp,s32g2-flexcan
>> +    then:
>> +      properties:
>> +        interrupts:
>> +          items:
>> +            - description: Message Buffer interrupt for mailboxes 0-7 and Enhanced RX FIFO
>> +            - description: Device state change
>> +            - description: Error detection
>> +            - description: Message Buffer interrupt for mailboxes 8-127
>> +        interrupt-names:
>> +          items:
>> +            - const: mb-0
>> +            - const: state
>> +            - const: berr
> 
> Nitpick:
> 
> - description: Error detection
> and
> - const: err
> 
> or
> 
> - description: Bus Error detection
> and
> - const: berr
> 
> regards,
> Marc
> 

Hello Marc,

Good point. I will change irq description to 'Bus Error detection' in V4.


Best Regards,
Ciprian

>> +            - const: mb-1
>> +      required:
>> +        - compatible
>> +        - reg
>> +        - interrupts
>> +        - interrupt-names
>> +    else:
>> +      properties:
>> +        interrupts:
>> +          maxItems: 1
>> +
>>   additionalProperties: false
>>   
>>   examples:
>> -- 
>> 2.45.2
>>
>>
>