netdev - Re: [PATCH v2 1/2] dt-bindings: net: Add ICSSG Ethernet Driver bindings

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Date:   Tue, 31 May 2022 12:08:37 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Puranjay Mohan <p-mohan@...com>, linux-kernel@...r.kernel.org
Cc:     davem@...emloft.net, edumazet@...gle.com,
        krzysztof.kozlowski+dt@...aro.org, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, nm@...com, ssantosh@...nel.org,
        s-anna@...com, linux-arm-kernel@...ts.infradead.org,
        rogerq@...nel.org, grygorii.strashko@...com, vigneshr@...com,
        kishon@...com, robh+dt@...nel.org, afd@...com, andrew@...n.ch
Subject: Re: [PATCH v2 1/2] dt-bindings: net: Add ICSSG Ethernet Driver
 bindings

On 31/05/2022 11:51, Puranjay Mohan wrote:
> Add a YAML binding document for the ICSSG Programmable real time unit
> based Ethernet driver. This driver uses the PRU and PRUSS consumer APIs
> to interface the PRUs and load/run the firmware for supporting ethernet
> functionality.
> 
> Signed-off-by: Puranjay Mohan <p-mohan@...com>
> ---
> v1: https://lore.kernel.org/all/20220506052433.28087-2-p-mohan@ti.com/ 
> v1 -> v2:
> * Addressed Rob's Comments

Nope, they were not addressed.

> * It includes indentation, formatting, and other minor changes.
> ---
>  .../bindings/net/ti,icssg-prueth.yaml         | 181 ++++++++++++++++++
>  1 file changed, 181 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/net/ti,icssg-prueth.yaml
> 
> diff --git a/Documentation/devicetree/bindings/net/ti,icssg-prueth.yaml b/Documentation/devicetree/bindings/net/ti,icssg-prueth.yaml
> new file mode 100644
> index 000000000000..40af968e9178
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/ti,icssg-prueth.yaml
> @@ -0,0 +1,181 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/ti,icssg-prueth.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: |+

Missed Rob's comment.

> +  Texas Instruments ICSSG PRUSS Ethernet
> +
> +maintainers:
> +  - Puranjay Mohan <p-mohan@...com>
> +
> +description:
> +  Ethernet based on the Programmable Real-Time
> +  Unit and Industrial Communication Subsystem.
> +
> +allOf:
> +  - $ref: /schemas/remoteproc/ti,pru-consumer.yaml#
> +
> +properties:
> +  compatible:
> +    enum:
> +      - ti,am654-icssg-prueth  # for AM65x SoC family
> +
> +  pinctrl-0:
> +    maxItems: 1
> +
> +  pinctrl-names:
> +    items:
> +      - const: default

You do not need these usually, they are coming from schema.

> +
> +  sram:
> +    description:
> +      phandle to MSMC SRAM node
> +
> +  dmas:
> +    maxItems: 10
> +    description:
> +      list of phandles and specifiers to UDMA.

Please follow Rob's comment - drop description.

> +
> +  dma-names:
> +    items:
> +      - const: tx0-0
> +      - const: tx0-1
> +      - const: tx0-2
> +      - const: tx0-3
> +      - const: tx1-0
> +      - const: tx1-1
> +      - const: tx1-2
> +      - const: tx1-3
> +      - const: rx0
> +      - const: rx1
> +
> +  ethernet-ports:
> +    type: object
> +    properties:
> +      '#address-cells':
> +        const: 1
> +      '#size-cells':
> +        const: 0
> +
> +    patternProperties:
> +      ^port@[0-1]$:

How did you implement Rob's comments here?

> +        type: object
> +        description: ICSSG PRUETH external ports
> +
> +        $ref: ethernet-controller.yaml#
> +
> +        unevaluatedProperties: false
> +        additionalProperties: true

No one proposed to add additionalProperties:true... Does it even work?

> +        properties:
> +          reg:
> +            items:
> +              - enum: [0, 1]
> +            description: ICSSG PRUETH port number
> +
> +          ti,syscon-rgmii-delay:
> +            $ref: /schemas/types.yaml#/definitions/phandle-array
> +            description:
> +              phandle to system controller node and register offset
> +              to ICSSG control register for RGMII transmit delay
> +
> +        required:
> +          - reg
> +
> +  ti,mii-g-rt:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description: |
> +      phandle to MII_G_RT module's syscon regmap.
> +
> +  ti,mii-rt:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description: |
> +      phandle to MII_RT module's syscon regmap
> +
> +  interrupts:
> +    minItems: 2
> +    maxItems: 2
> +    description: |
> +      Interrupt specifiers to TX timestamp IRQ.
> +
> +  interrupt-names:
> +    items:
> +      - const: tx_ts0
> +      - const: tx_ts1
> +
> +required:
> +  - compatible
> +  - sram
> +  - ti,mii-g-rt
> +  - dmas
> +  - dma-names
> +  - ethernet-ports
> +  - interrupts
> +  - interrupt-names
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +
> +    /* Example k3-am654 base board SR2.0, dual-emac */
> +    pruss2_eth: pruss2_eth {
> +            compatible = "ti,am654-icssg-prueth";

Again missed Rob's comment.

Really, you ignored four of his comments. Please respect reviewers time
but not forcing them to repeat same review comments.

Best regards,
Krzysztof