linux-kernel - Re: [PATCH v7 12/12] dt-bindings: fsl-dma: fsl-edma: add edma3 compatible string

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Date:   Sat, 17 Jun 2023 10:57:44 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Frank Li <Frank.Li@....com>, vkoul@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, dmaengine@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        peng.fan@....com, joy.zou@....com, shenwei.wang@....com,
        imx@...ts.linux.dev
Subject: Re: [PATCH v7 12/12] dt-bindings: fsl-dma: fsl-edma: add edma3
 compatible string

On 16/06/2023 17:34, Frank Li wrote:
> Extend Freescale eDMA driver bindings to support eDMA3 IP blocks in
> i.MX8QM and i.MX8QXP SoCs. In i.MX93, both eDMA3 and eDMA4 are now.
> 
> Signed-off-by: Frank Li <Frank.Li@....com>
> ---
>  .../devicetree/bindings/dma/fsl,edma.yaml     | 103 ++++++++++++++++--
>  1 file changed, 96 insertions(+), 7 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/dma/fsl,edma.yaml b/Documentation/devicetree/bindings/dma/fsl,edma.yaml
> index 5fd8fc604261..2363c10e0d1c 100644
> --- a/Documentation/devicetree/bindings/dma/fsl,edma.yaml
> +++ b/Documentation/devicetree/bindings/dma/fsl,edma.yaml
> @@ -21,32 +21,41 @@ properties:
>        - enum:
>            - fsl,vf610-edma
>            - fsl,imx7ulp-edma
> +          - fsl,imx8qm-adma
> +          - fsl,imx8qm-edma
> +          - fsl,imx93-edma3
> +          - fsl,imx93-edma4
>        - items:
>            - const: fsl,ls1028a-edma
>            - const: fsl,vf610-edma
>  
>    reg:
> -    minItems: 2
> +    minItems: 1
>      maxItems: 3
>  
>    interrupts:
> -    minItems: 2
> -    maxItems: 17
> +    minItems: 1
> +    maxItems: 64
>  
>    interrupt-names:
> -    minItems: 2
> -    maxItems: 17
> +    minItems: 1
> +    maxItems: 64
>  
>    "#dma-cells":
> -    const: 2
> +    enum:
> +      - 2
> +      - 3
>  
>    dma-channels:
> -    const: 32
> +    minItems: 1
> +    maxItems: 64
>  
>    clocks:
> +    minItems: 1
>      maxItems: 2
>  
>    clock-names:
> +    minItems: 1
>      maxItems: 2
>  
>    big-endian:
> @@ -65,6 +74,26 @@ required:
>  
>  allOf:
>    - $ref: dma-controller.yaml#
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - fsl,imx8qm-adma
> +              - fsl,imx8qm-edma
> +              - fsl,imx93-edma3
> +              - fsl,imx93-edma4
> +    then:
> +      properties:
> +        "#dma-cells":
> +          const: 3
> +        # It is not necessary to write the interrupt name for each channel.
> +        # instead, you can simply maintain the sequential IRQ numbers as
> +        # defined for the DMA channels.
> +        interrupt-names: false
> +        clock-names:

items:
  - const: dma

missing clocks...

oh wait, I already said this. Let's use reviewers time for doing the
same review, why not. They work for free.

This is a friendly reminder during the review process.

It seems my previous comments were not fully addressed. Maybe my
feedback got lost between the quotes, maybe you just forgot to apply it.
Please go back to the previous discussion and either implement all
requested changes or keep discussing them.

Thank you.

Best regards,
Krzysztof