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Message-ID: <08130247-1ccb-1233-3feb-a60e6c0b3610@wolfvision.net>
Date:   Wed, 6 Sep 2023 00:03:57 +0200
From:   Javier Carrasco <javier.carrasco@...fvision.net>
To:     Fabio Estevam <festevam@...il.com>, alexandre.belloni@...tlin.com
Cc:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org, sam@...nborg.org, linux-rtc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Fabio Estevam <festevam@...x.de>
Subject: Re: [PATCH v2] dt-bindings: rtc: pcf8523: Convert to YAML

Hi Fabio,

On 05.09.23 22:28, Fabio Estevam wrote:
> From: Fabio Estevam <festevam@...x.de>
> 
> Convert the PCF8523 bindings from text format to YAML.
> 
> The YAML format is preferred as it allows validation.
> 
> Signed-off-by: Fabio Estevam <festevam@...x.de>
> ---
> Changes since v1:
> - Add the default value for quartz-load-femtofarads. (Krzysztof)
> - Pass unevaluatedProperties: false. (Krzysztof)
> - Fixed a typo on Sam's email address.
> 
>  .../devicetree/bindings/rtc/nxp,pcf8523.txt   | 18 --------
>  .../devicetree/bindings/rtc/nxp,pcf8523.yaml  | 45 +++++++++++++++++++
>  2 files changed, 45 insertions(+), 18 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/rtc/nxp,pcf8523.txt
>  create mode 100644 Documentation/devicetree/bindings/rtc/nxp,pcf8523.yaml
> 
> diff --git a/Documentation/devicetree/bindings/rtc/nxp,pcf8523.txt b/Documentation/devicetree/bindings/rtc/nxp,pcf8523.txt
> deleted file mode 100644
> index 0b1080c60f63..000000000000
> --- a/Documentation/devicetree/bindings/rtc/nxp,pcf8523.txt
> +++ /dev/null
> @@ -1,18 +0,0 @@
> -* NXP PCF8523 Real Time Clock
> -
> -Required properties:
> -- compatible: Should contain "nxp,pcf8523".
> -- reg: I2C address for chip.
> -
> -Optional property:
> -- quartz-load-femtofarads: The capacitive load of the quartz(x-tal),
> -  expressed in femto Farad (fF). Valid values are 7000 and 12500.
> -  Default value (if no value is specified) is 12500fF.
> -
> -Example:
> -
> -pcf8523: rtc@68 {
> -	compatible = "nxp,pcf8523";
> -	reg = <0x68>;
> -	quartz-load-femtofarads = <7000>;
> -};
> diff --git a/Documentation/devicetree/bindings/rtc/nxp,pcf8523.yaml b/Documentation/devicetree/bindings/rtc/nxp,pcf8523.yaml
> new file mode 100644
> index 000000000000..8d17b89fef5e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rtc/nxp,pcf8523.yaml
> @@ -0,0 +1,45 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/rtc/nxp,pcf8523.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: NXP PCF8523 Real Time Clock
> +
> +maintainers:
> +  - Sam Ravnborg <sam@...nborg.org>
> +
> +allOf:
> +  - $ref: rtc.yaml#
> +
> +properties:
> +  compatible:
> +    const: nxp,pcf8523
> +
> +  reg:
> +    maxItems: 1
> +
> +  quartz-load-femtofarads:
> +    description:
> +      The capacitive load of the crystal, expressed in femto Farad (fF).
> +    enum: [ 7000, 12500 ]
> +    default: 7000
isn't the default value 12500 anymore? it used to be and the driver
still uses 12500fF as the default value.
> +
> +required:
> +  - compatible
> +  - reg
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    i2c {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        rtc@68 {
> +            compatible = "nxp,pcf8523";
> +            reg = <0x68>;
> +            quartz-load-femtofarads = <7000>;
> +        };
> +    };
Best regards,
Javier Carrasco

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