linux-kernel - Re: [PATCH v11 5/6] dt-bindings: media: wave5: add yaml devicetree bindings

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Date:   Wed, 7 Dec 2022 13:31:33 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Sebastian Fricke <sebastian.fricke@...labora.com>,
        linux-media@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     kernel@...labora.com, bob.beckett@...labora.com,
        hverkuil-cisco@...all.nl, nicolas.dufresne@...labora.com,
        nas.chung@...psnmedia.com, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v11 5/6] dt-bindings: media: wave5: add yaml devicetree
 bindings

On 07/12/2022 13:13, Sebastian Fricke wrote:
> From: Robert Beckett <bob.beckett@...labora.com>
> 
> Add bindings for the wave5 chips&media codec driver
> 
> Signed-off-by: Robert Beckett <bob.beckett@...labora.com>
> Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@...labora.com>
> Signed-off-by: Sebastian Fricke <sebastian.fricke@...labora.com>

What's happening with this patch? Where is the changelog? Why it is v11
and first time I see it? And why it is v11 with basic mistakes and lack
of testing?!? I would assume that v11 was already seen and tested...


> ---
>  .../devicetree/bindings/cnm,wave5.yml         | 72 +++++++++++++++++++
>  1 file changed, 72 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/cnm,wave5.yml

Wrong directory. It wasn't here at all before, so I am really confused
how this could happen.

Subject: drop redundant pieces: yaml, devicetree and bindings.


> 
> diff --git a/Documentation/devicetree/bindings/cnm,wave5.yml b/Documentation/devicetree/bindings/cnm,wave5.yml
> new file mode 100644
> index 000000000000..01dddebb162e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/cnm,wave5.yml
> @@ -0,0 +1,72 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/wave5.yaml#

You clearly did not test them before sending.

> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Chips&Media Wave 5 Series multi-standard codec IP
> +
> +maintainers:
> +  - Nas Chung <nas.chung@...psnmedia.com>
> +  - Robert Beckett <bob.beckett@...labora.com>
> +  - Sebastian Fricke <sebastian.fricke@...labora.com>
> +
> +description: |-
> +  The Chips&Media WAVE codec IP is a multi format video encoder/decoder
> +
> +properties:
> +  compatible:
> +    anyOf:

Please start from example-schema or other recently approved bindings. No
anyOf.

> +      - items:

No items...

> +        - enum:
> +            - cnm,cm511-vpu
> +            - cnm,cm517-vpu
> +            - cnm,cm521-vpu
> +            - cnm,cm521c-vpu
> +            - cnm,cm521c-dual-vpu

What's the difference between this and one above?

> +            - cnm,cm521e1-vpu
> +            - cnm,cm537-vpu
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    minItems: 1
> +    maxItems: 4

This has to be specific.

> +
> +  clock-names:
> +    minItems: 1
> +    maxItems: 4

You need to list the names.

> +
> +  interrupts:
> +    maxItems: 1
> +
> +  power-domains:
> +    maxItems: 1
> +
> +  resets:
> +    maxItems: 1
> +
> +  sram:

Missing vendor prefix.

> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description: phandle pointing to the SRAM device node

And what is it for? Why do you need SRAM?

> +    maxItems: 1

Drop

> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks
> +  - clock-names
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    vpu: video-codec@...45678 {
> +        compatible = "cnm,cm521-vpu";
> +        reg = <0x12345678 0x1000>;
> +        interrupts = <42>;
> +        clocks = <&clks 42>;
> +        clock-names = "vcodec";
> +        sram = <&sram>;
> +    };

Best regards,
Krzysztof