linux-kernel - Re: [PATCH v2 1/5] dt-bindings: phy: renesas,usb2-phy: Add RZ/T2H and RZ/N2H support

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Message-ID: <CAMuHMdUWo=hYPWPrweoYn5rFC50aV5EV1xqwFHmLp27GRjEADw@mail.gmail.com>
Date: Mon, 11 Aug 2025 15:33:51 +0200
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Prabhakar <prabhakar.csengg@...il.com>
Cc: Vinod Koul <vkoul@...nel.org>, Kishon Vijay Abraham I <kishon@...nel.org>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>, Magnus Damm <magnus.damm@...il.com>, 
	Neil Armstrong <neil.armstrong@...aro.org>, linux-phy@...ts.infradead.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-renesas-soc@...r.kernel.org, Biju Das <biju.das.jz@...renesas.com>, 
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>, 
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>, 
	Conor Dooley <conor.dooley@...rochip.com>
Subject: Re: [PATCH v2 1/5] dt-bindings: phy: renesas,usb2-phy: Add RZ/T2H and
 RZ/N2H support

Hi Prabhakar,

On Fri, 8 Aug 2025 at 23:52, Prabhakar <prabhakar.csengg@...il.com> wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
>
> Document the USB2 PHY controller for the Renesas RZ/T2H (r9a09g077) and
> RZ/N2H (r9a09g087) SoCs. These SoCs share the same PHY block, which is
> similar to the one on RZ/G2L but differs in clocks, resets, and register
> bits. To account for these differences, a new compatible string
> `renesas,usb2-phy-r9a09g077` is introduced.
>
> The RZ/N2H SoC uses the same PHY as RZ/T2H, so it reuses the RZ/T2H
> compatible string as a fallback.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> Acked-by: Conor Dooley <conor.dooley@...rochip.com>

Thanks for your patch!

> --- a/Documentation/devicetree/bindings/phy/renesas,usb2-phy.yaml
> +++ b/Documentation/devicetree/bindings/phy/renesas,usb2-phy.yaml

> @@ -120,6 +126,17 @@ allOf:
>        required:
>          - resets
>
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: renesas,usb2-phy-r9a09g077
> +    then:
> +      properties:
> +        clocks:
> +          minItems: 2
> +        resets: false

By the time this hits upstream, you will probably have reset support
for RZ/T2H and RZ/N2H, so you just add renesas,usb2-phy-r9a09g077
to the conditional section above?

> +
>  additionalProperties: false
>
>  examples:

Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>

Gr{oetje,eeting}s,

                        Geert


--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds