Date:   Tue, 31 May 2022 16:57:27 +0530
From:   Puranjay Mohan <p-mohan@...com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        <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

Hi Krzysztof,

On 31/05/22 15:38, Krzysztof Kozlowski wrote:
> 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.

I am trying my best to address them but I am new to DT Schemas, so, I
misunderstood a few comments.

> 
>> * 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.

Sorry, Will remove this in next version.

> 
>> +  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.

Will remove in next version.

> 
>> +
>> +  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.

I misunderstood his comment, I thought he is asking to remove the
reference to the .txt file (Which I removed). I will remove it in next
version.

> 
>> +
>> +  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?

He said ethernet-port is preferred but all other drivers were using
"port" so I though it is not compulsory. Will change it if it compulsory
to use ethernet-port

> 
>> +        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?

This is my mistake, will remove it in next version.

> 
>> +        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.

One of Rob's comment was to make the indentation as 4 which I have done.

The second comment was about 'ti,prus'.

So, ti,prus , firmware-name, and ti,pruss-gp-mux-sel are a part of
remoteproc/ti,pru-consumer.yaml which I have included with

allOf:
  - $ref: /schemas/remoteproc/ti,pru-consumer.yaml#

So, I thought it is not required to add them again.

I will add it in next version, if that is how it should be done.

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

I am really sorry for this.

Thanks,
Puranjay Mohan


> 
> Best regards,
> Krzysztof

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