linux-kernel - Re: [PATCH v2 2/5] dt-bindings: rtc: abx80x: convert to yaml

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Message-ID: <7f45aaea-6520-41c7-8788-f6dd14c5fcb2@linaro.org>
Date: Fri, 12 Jan 2024 18:18:58 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Josua Mayer <josua@...id-run.com>, Nishanth Menon <nm@...com>,
 Vignesh Raghavendra <vigneshr@...com>, Tero Kristo <kristo@...nel.org>,
 Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, Alessandro Zummo <a.zummo@...ertech.it>,
 Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc: Yazan Shhady <yazan.shhady@...id-run.com>,
 linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-rtc@...r.kernel.org
Subject: Re: [PATCH v2 2/5] dt-bindings: rtc: abx80x: convert to yaml

On 12/01/2024 18:12, Josua Mayer wrote:
> Convert the abracon abx80x rtc text bindings to dt-schema format.
> 
> Additionally added "interrupts" property which was missing from text
> format, because abx80x and driver support them.
> 
> Signed-off-by: Josua Mayer <josua@...id-run.com>
> ---


> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rtc/abracon,abx80x.yaml
> @@ -0,0 +1,56 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/rtc/abracon,abx80x.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Abracon ABX80X I2C ultra low power RTC/Alarm chip
> +
> +maintainers: []

You need a name here. If there is no driver maintainer or anyone
interested, put devicetree list.

> +
> +allOf:
> +  - $ref: rtc.yaml#
> +
> +properties:
> +  compatible:
> +    anyOf:

Please do not invent your own solutions, but use existing code as
template. Just open example-schema or any other recent RTC binding.

> +      - description: auto-detection from id register
> +        const: abracon,abx80x
> +      - const: abracon,,ab0801
> +      - const: abracon,,ab0803
> +      - const: abracon,,ab0804
> +      - const: abracon,,ab0805
> +      - const: abracon,,ab1801
> +      - const: abracon,,ab1803
> +      - const: abracon,,ab1804
> +      - const: abracon,,ab1805
> +      - const: microcrystal,rv1805
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  abracon,tc-diode:

Missing type - string.

> +    description:
> +      Trickle-charge diode type.
> +      Required to enable charging backup battery.
> +    anyOf:

Use enum and explain the meanings of the values in descruption.

> +      - description: standard diode with 0.6V drop
> +        const: standard
> +      - description: schottky diode with 0.3V drop
> +        const: schottky
> +
> +  abracon,tc-resistor:
> +    description:
> +      Trickle-charge resistor value in kOhm.
> +      Required to enable charging backup battery.
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    enum: [0, 3, 6, 11]
> +
> +required:
> +  - compatible
> +  - reg
> +
> +unevaluatedProperties: false

Provide example.

Best regards,
Krzysztof