Re: [PATCH v3] dt-bindings: i2c: migrate mt7621 text bindings to YAML

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On 20/09/2022 07:20, Sergio Paracuellos wrote:
> SoC MT7621 I2C bindings used text format, so migrate them to YAML.
> There are some additions to the binding that were not in the original
> txt file. This binding is used in MT7621 and MT7628a Ralink SoCs. To
> properly match both dts nodes in tree we need to add to the schema
> 'clocks', 'clock-names' and 'reset-names'. Both 'clock-names' and
> 'reset-names' use 'i2c' as string so maintain that as const in
> the schema. Also, Properly update MAINTAINERS file to align the
> changes.
> 
> Signed-off-by: Sergio Paracuellos <sergio.paracuellos@xxxxxxxxx>

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>

plus two comments:

> ---
> Changes in v3:
> - Address review comment from Krzysztof:
>     - Rebase onto last kernel version.
>     - Drop address-cells and size-cells.
>     - Properly explain deviations from txt in commit message.
>     - Drop reset-names as required property.
>     - Squash previous series two commits in one to be bisectable.
> 

(...)

> --- /dev/null
> +++ b/Documentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml
> @@ -0,0 +1,61 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/i2c/mediatek,mt7621-i2c.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +maintainers:
> +  - Stefan Roese <sr@xxxxxxx>

You can also add yourself if you have the interest, the hardware or the
datasheets.

> +
> +title: Mediatek MT7621/MT7628 I2C master controller
> +
> +allOf:
> +  - $ref: /schemas/i2c/i2c-controller.yaml#
> +
> +properties:
> +  compatible:
> +    const: mediatek,mt7621-i2c
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  clock-names:
> +    const: i2c
> +
> +  resets:
> +    maxItems: 1
> +
> +  reset-names:
> +    const: i2c
> +
> +required:
> +  - compatible
> +  - reg
> +  - resets
> +  - "#address-cells"
> +  - "#size-cells"

Similarly to spi, the clocks might be added to required properties, if
they are really needed.

Best regards,
Krzysztof



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