linux-kernel - Re: [PATCH v2 1/3] dt-bindings: can: fsl,flexcan: add S32G2/S32G3 SoC support

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Message-ID: <4a999b99-0641-47d4-bef9-114fe6bee78c@oss.nxp.com>
Date: Tue, 26 Nov 2024 09:47:53 +0200
From: Ciprian Marian Costea <ciprianmarian.costea@....nxp.com>
To: Krzysztof Kozlowski <krzk@...nel.org>
Cc: Marc Kleine-Budde <mkl@...gutronix.de>,
 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>, Frank Li <Frank.Li@....com>
Subject: Re: [PATCH v2 1/3] dt-bindings: can: fsl,flexcan: add S32G2/S32G3 SoC
 support

On 11/26/2024 9:19 AM, Krzysztof Kozlowski wrote:
> On Mon, Nov 25, 2024 at 06:31:00PM +0200, 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>
>> Reviewed-by: Frank Li <Frank.Li@....com>
> 

Hello Krzysztof,

Thanks for your time in reviewing this patch.

> You made multiple changes afterwards, which invalidated the review. See
> submitting-patches which explain what to do in such case.
> 

I will remove the tag in V3 and add this info in the changelog.

>> ---
>>   .../bindings/net/can/fsl,flexcan.yaml         | 46 +++++++++++++++++--
>>   1 file changed, 42 insertions(+), 4 deletions(-)
> 
> ...
> 
>>       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
> 
> Keep it in one line.

I will update in V3.

> 
>> +            - description:
>> +                Interrupt indicating that the CAN bus went to Buss Off state
> 
> s/Interrupt indicating that//
> Buss Off state status?
> 
>> +            - description:
>> +                Interrupt indicating that errors were detected on the CAN bus
> 
> Error detection?

I will rephrase in V2.

> 
>> +            - description:
>> +                Message Buffer interrupt for mailboxes 8-127 (ored)
>> +        interrupt-names:
>> +          items:
>> +            - const: mb_0-7
> 
> Choose one: either underscores or hyphens. Keep it consistent in your
> bindings.

Makes sense. I will update in V3.

> 
>> +            - const: state
>> +            - const: berr
>> +            - const: mb_8-127
> 
> Choose one: either underscores or hyphens. Keep it consistent in your
> bindings.
> 

I will update in V3.

>> +      required:
>> +        - compatible
>> +        - reg
>> +        - interrupts
>> +        - interrupt-names
> 
> What happened to "else:"? Why all other devices now have up to 4 interrupts?
> 
> Best regards,
> Krzysztof
> 

I will add the 'else' branch back in V3.

Best Regards,
Ciprian