linux-kernel - Re: [PATCH v4 2/2] dt-bindings: rtc: add max313xx RTCs

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Date:   Thu, 16 Mar 2023 08:57:40 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Ibrahim Tilki <Ibrahim.Tilki@...log.com>, a.zummo@...ertech.it,
        alexandre.belloni@...tlin.com, jdelvare@...e.com,
        linux@...ck-us.net, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org
Cc:     linux-rtc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-hwmon@...r.kernel.org, devicetree@...r.kernel.org,
        Zeynep Arslanbenzer <Zeynep.Arslanbenzer@...log.com>
Subject: Re: [PATCH v4 2/2] dt-bindings: rtc: add max313xx RTCs

On 15/03/2023 17:16, Ibrahim Tilki wrote:
> Devicetree binding documentation for Analog Devices MAX313XX RTCs
> 
> Signed-off-by: Ibrahim Tilki <Ibrahim.Tilki@...log.com>
> Signed-off-by: Zeynep Arslanbenzer <Zeynep.Arslanbenzer@...log.com>
> ---
>  .../devicetree/bindings/rtc/adi,max313xx.yaml | 142 ++++++++++++++++++
>  1 file changed, 142 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/rtc/adi,max313xx.yaml
> 
> diff --git a/Documentation/devicetree/bindings/rtc/adi,max313xx.yaml b/Documentation/devicetree/bindings/rtc/adi,max313xx.yaml
> new file mode 100644
> index 000000000..bed6d0bc4
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rtc/adi,max313xx.yaml
> @@ -0,0 +1,142 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +# Copyright 2022 Analog Devices Inc.
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/rtc/adi,max313xx.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Analog Devices MAX313XX series I2C RTCs
> +
> +maintainers:
> +  - Ibrahim Tilki <Ibrahim.Tilki@...log.com>
> +  - Zeynep Arslanbenzer <Zeynep.Arslanbenzer@...log.com>
> +
> +description: Analog Devices MAX313XX series I2C RTCs.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - adi,max31328
> +      - adi,max31329
> +      - adi,max31331
> +      - adi,max31334
> +      - adi,max31341
> +      - adi,max31342
> +      - adi,max31343
> +
> +  reg:
> +    description: I2C address of the RTC
> +    items:
> +      - enum: [0x68, 0x69]
> +
> +  interrupts:
> +    description: |
> +      Alarm1 interrupt line of the RTC. Some of the RTCs have two interrupt
> +      lines and alarm1 interrupt muxing depends on the clockin/clockout
> +      configuration.
> +    maxItems: 1
> +
> +  "#clock-cells":
> +    description: |
> +      RTC can be used as a clock source through its clock output pin when
> +      supplied.
> +    const: 0
> +
> +  clocks:
> +    description: |
> +      RTC uses this clock for clock input when supplied. Clock has to provide
> +      one of these four frequencies: 1Hz, 50Hz, 60Hz or 32.768kHz.
> +    maxItems: 1
> +
> +  aux-voltage-chargeable: true

Drop, coming from rtc.yaml.

> +
> +  trickle-resistor-ohms:
> +    description: Enables trickle charger with specified resistor value.
> +    enum: [3000, 6000, 11000]
> +
> +  adi,trickle-diode-enable:
> +    description: Charge the auxiliary voltage with a diode.
> +    type: boolean
> +
> +additionalProperties: false

Use order like in example-schema, so required, allOf then
unevaluatedProperties: false.


Best regards,
Krzysztof