Re: [PATCH] dt-bindings: i2c: snps,designware-i2c: describe Renesas RZ/N1D variant

Conor Dooley
2025-03-26T18:01:26Z

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On Wed, Mar 26, 2025 at 09:59:12AM +0100, Wolfram Sang wrote:
> So far, no differences are known, so it can fallback to the default
> compatible.
>
> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
> ---
>
> If everyone is OK with this patch, does anyone mind if I shortcut it
> into the v6.15 mergewindow? It is just a documentation update and would
> simplify upstreaming the I2C chain for this board. One dependency less.
>
> .../devicetree/bindings/i2c/snps,designware-i2c.yaml | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml b/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml
> index e5d05263c45a..87eea87bdd52 100644
> --- a/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml
> +++ b/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml
> @@ -27,6 +27,11 @@ properties:
> oneOf:
> - description: Generic Synopsys DesignWare I2C controller
> const: snps,designware-i2c
> + - description: Renesas RZ/N1D I2C controller
> + items:
> + - const: renesas,r9a06g032-i2c
> + - const: renesas,rzn1-i2c

I don't really understand the rzn1/r9a06g032 difference here. Why are
both needed?

> + - const: snps,designware-i2c
> - description: Microsemi Ocelot SoCs I2C controller
> items:
> - const: mscc,ocelot-i2c
> --
> 2.47.2
>

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