Re: [PATCH v2 1/2] rtc: rtc7301: Rewrite bindings in schema

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On Sat, Oct 07, 2023 at 02:30:49PM +0200, Linus Walleij wrote:
> This rewrites the Epson RTC7301 bindings to use YAML schema,
> and adds a property for "reg-io-width" as used in several
> other bindings to account for different register strides.
> 
> The USRobotics USR8200 uses the byte IO width.
> 
> Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
> ---
>  .../devicetree/bindings/rtc/epson,rtc7301.txt      | 16 -------
>  .../devicetree/bindings/rtc/epson,rtc7301.yaml     | 50 ++++++++++++++++++++++
>  2 files changed, 50 insertions(+), 16 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/rtc/epson,rtc7301.txt b/Documentation/devicetree/bindings/rtc/epson,rtc7301.txt
> deleted file mode 100644
> index 5f9df3f1467c..000000000000
> --- a/Documentation/devicetree/bindings/rtc/epson,rtc7301.txt
> +++ /dev/null
> @@ -1,16 +0,0 @@
> -EPSON TOYOCOM RTC-7301SF/DG
> -
> -Required properties:
> -
> -- compatible: Should be "epson,rtc7301sf" or "epson,rtc7301dg"
> -- reg: Specifies base physical address and size of the registers.
> -- interrupts: A single interrupt specifier.
> -
> -Example:
> -
> -rtc: rtc@44a00000 {
> -	compatible = "epson,rtc7301dg";
> -	reg = <0x44a00000 0x10000>;
> -	interrupt-parent = <&axi_intc_0>;
> -	interrupts = <3 2>;
> -};
> diff --git a/Documentation/devicetree/bindings/rtc/epson,rtc7301.yaml b/Documentation/devicetree/bindings/rtc/epson,rtc7301.yaml
> new file mode 100644
> index 000000000000..0937b094821d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rtc/epson,rtc7301.yaml
> @@ -0,0 +1,50 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/rtc/epson,rtc7301.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Epson Toyocom RTC-7301SF/DG
> +
> +description:
> +  The only difference between the two variants is the packaging.
> +  The DG variant is a DIL package, and the SF variant is a flat
> +  package.
> +
> +maintainers:
> +  - Akinobu Mita <akinobu.mita@xxxxxxxxx>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - epson,rtc7301dg
> +      - epson,rtc7301sf
> +
> +  reg:
> +    maxItems: 1
> +
> +  reg-io-width:
> +    description:
> +      The size (in bytes) of the IO accesses that should be performed
> +      on the device. If not specified, the default is 4.

No prose for what can be a constraint:

       default: 4

With that,

Reviewed-by: Rob Herring <robh@xxxxxxxxxx>

> +    enum: [1, 4]





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