linux-kernel - Re: [PATCH 28/43] dt-bindings: rtc: Add DT binding m48t86 rtc

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Date:   Mon, 24 Apr 2023 11:25:48 -0500
From:   Rob Herring <robh@...nel.org>
To:     Nikita Shubin <nikita.shubin@...uefel.me>
Cc:     Arnd Bergmann <arnd@...nel.org>, Linus Walleij <linusw@...nel.org>,
        Alexander Sverdlin <alexander.sverdlin@...il.com>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-rtc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 28/43] dt-bindings: rtc: Add DT binding m48t86 rtc

On Mon, Apr 24, 2023 at 03:34:44PM +0300, Nikita Shubin wrote:
> Add YAML bindings for ST M48T86 / Dallas DS12887 RTC.
> 
> Signed-off-by: Nikita Shubin <nikita.shubin@...uefel.me>
> ---
>  .../bindings/rtc/dallas,rtc-m48t86.yaml       | 33 +++++++++++++++++++
>  1 file changed, 33 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/rtc/dallas,rtc-m48t86.yaml
> 
> diff --git a/Documentation/devicetree/bindings/rtc/dallas,rtc-m48t86.yaml b/Documentation/devicetree/bindings/rtc/dallas,rtc-m48t86.yaml
> new file mode 100644
> index 000000000000..51f98bdbc385
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rtc/dallas,rtc-m48t86.yaml
> @@ -0,0 +1,33 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/rtc/dallas,rtc-m48t86.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: ST M48T86 / Dallas DS12887 RTC bindings
> +
> +maintainers:
> +  - Alessandro Zummo <a.zummo@...ertech.it>
> +
> +properties:
> +  compatible:
> +    const: dallas,rtc-m48t86

'rtc-' is redundant. And haven't you mixed up the vendor and part 
number? It should be dallas,ds12887 and/or st,m48t86?

This can probably go in the trivial rtc binding.

> +
> +  reg:
> +    maxItems: 2
> +
> +required:
> +  - compatible
> +  - reg
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    rtc1: rtc@...00000 {

Drop unused labels.

> +        compatible = "dallas,rtc-m48t86";
> +        reg = <0x10800000 0x1>, <0x11700000 0x1>;
> +    };
> +
> +...
> +
> -- 
> 2.39.2
>