linux-kernel - Re: [PATCH 1/2] dt-bindings: rtc: max31335: add max31335 bindings

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Date:   Mon, 30 Oct 2023 18:24:40 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Antoniu Miclaus <antoniu.miclaus@...log.com>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>, linux-rtc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-hwmon@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: rtc: max31335: add max31335 bindings

On 30/10/2023 12:50, Antoniu Miclaus wrote:
> Document the Analog Devices MAX31335 device tree bindings.
> 
> Signed-off-by: Antoniu Miclaus <antoniu.miclaus@...log.com>
> ---
>  .../devicetree/bindings/rtc/adi,max31335.yaml | 61 +++++++++++++++++++
>  1 file changed, 61 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/rtc/adi,max31335.yaml
> 
> diff --git a/Documentation/devicetree/bindings/rtc/adi,max31335.yaml b/Documentation/devicetree/bindings/rtc/adi,max31335.yaml
> new file mode 100644
> index 000000000000..b84be0fa34ef
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rtc/adi,max31335.yaml
> @@ -0,0 +1,61 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/rtc/adi,max31335.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Analog Devices MAX31335 RTC Device Tree Bindings

It does not look like you tested the bindings, at least after quick
look. Please run `make dt_binding_check` (see
Documentation/devicetree/bindings/writing-schema.rst for instructions).
Maybe you need to update your dtschema and yamllint.

Although I wonder why there is no error report from the bot.

Drop "Device Tree Bindings"

> +
> +allOf:
> +  - $ref: rtc.yaml#

This goes after description. Several existing files have it in other
place, but if doing changes then well...

> +
> +maintainers:
> +  - Antoniu Miclaus <antoniu.miclaus@...log.com>
> +
> +description: Analog Devices MAX31335 I2C RTC

Drop or say something else than title.


> +
> +properties:
> +  compatible:
> +    const: adi,max31335
> +
> +  reg:
> +    description: I2C address of the RTC

Drop description, obvious.

> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  "#clock-cells":
> +    description:
> +      RTC can be used as a clock source through its clock output pin.
> +    const: 0
> +
> +  trickle-resistor-ohms:
> +    description: Selected resistor for trickle charger.
> +    enum: [3000, 6000, 11000]

default? Or missing property has other meaning...

> +
> +  trickle-diode-enable: true

Where is it defined? You added it as it was a common property, so where
is the one definition? Maybe you wanted to use other property from
rtc.yaml which is deprecated, so obviously not...

> +
> +required:
> +  - compatible
> +  - reg
> +

Best regards,
Krzysztof