linux-kernel - Re: [PATCH v1 25/43] dt-bindings: ata: Add Cirrus EP93xx

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Date:   Fri, 2 Jun 2023 08:57:37 +0900
From:   Damien Le Moal <dlemoal@...nel.org>
To:     Nikita Shubin <nikita.shubin@...uefel.me>,
        Alexander Sverdlin <alexander.sverdlin@...il.com>,
        Arnd Bergmann <arnd@...db.de>,
        Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     Michael Peters <mpeters@...eddedTS.com>,
        Kris Bahnsen <kris@...eddedTS.com>, linux-ide@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 25/43] dt-bindings: ata: Add Cirrus EP93xx

On 6/1/23 14:45, Nikita Shubin wrote:
> Add YAML bindings for ep93xx SoC PATA.
> 
> Signed-off-by: Nikita Shubin <nikita.shubin@...uefel.me>
> ---
> 
> Notes:
>     v0 -> v1:
>     
>     - renamed file to ep9312-pata

Looks OK to me but given that this is both for the cirrus,ep9315-pata and
cirrus,ep9312-pata, wouldn't it be better to name the file
cirrus,ep931x-pata.yaml ?


>     - changed email to dlemoal@...nel.org
>     - dropped label
>     - fixed ident
> 
>  .../bindings/ata/cirrus,ep9312-pata.yaml      | 44 +++++++++++++++++++
>  1 file changed, 44 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/ata/cirrus,ep9312-pata.yaml
> 
> diff --git a/Documentation/devicetree/bindings/ata/cirrus,ep9312-pata.yaml b/Documentation/devicetree/bindings/ata/cirrus,ep9312-pata.yaml
> new file mode 100644
> index 000000000000..3489be55a6fe
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/ata/cirrus,ep9312-pata.yaml
> @@ -0,0 +1,44 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/ata/cirrus,ep9312-pata.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Cirrus Logic EP9312 PATA controller
> +
> +maintainers:
> +  - Damien Le Moal <dlemoal@...nel.org>
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - const: cirrus,ep9312-pata

I am not a DT specialist, but isn't this line superfluous since it is listed in
the items ?

> +      - items:
> +          - const: cirrus,ep9315-pata
> +          - const: cirrus,ep9312-pata
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    ide@...a0000 {
> +      compatible = "cirrus,ep9312-pata";
> +      reg = <0x800a0000 0x38>;
> +      interrupt-parent = <&vic1>;
> +      interrupts = <8>;
> +      pinctrl-names = "default";
> +      pinctrl-0 = <&ide_default_pins>;
> +    };
> +
> +...

-- 
Damien Le Moal
Western Digital Research