linux-kernel - Re: [PATCH 1/3] dt-bindings: pinctrl: renesas,rzg2l-pinctrl: Allow 'input-schmitt-{enable,disable}' and 'drive-open-drain' properties

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Message-ID: <CAMuHMdWkHvHh=AhJhOutFRAJMczpCGdUCPvPuqjY_V4aiMvmAg@mail.gmail.com>
Date: Fri, 4 Oct 2024 09:53:59 +0200
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Prabhakar <prabhakar.csengg@...il.com>
Cc: Linus Walleij <linus.walleij@...aro.org>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Magnus Damm <magnus.damm@...il.com>, linux-renesas-soc@...r.kernel.org, 
	linux-gpio@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...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>
Subject: Re: [PATCH 1/3] dt-bindings: pinctrl: renesas,rzg2l-pinctrl: Allow
 'input-schmitt-{enable,disable}' and 'drive-open-drain' properties

Hi Fabrizio,

On Wed, Sep 18, 2024 at 2:09 PM Prabhakar <prabhakar.csengg@...il.com> wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
>
> On the RZ/V2H(P) SoC we can configure the 'input-schmitt-{enable,disable}'
> and 'drive-open-drain' of multiplexed pins. Update the binding
> documentation to include these properties.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>

Thanks for your patch!

> --- a/Documentation/devicetree/bindings/pinctrl/renesas,rzg2l-pinctrl.yaml
> +++ b/Documentation/devicetree/bindings/pinctrl/renesas,rzg2l-pinctrl.yaml
> @@ -119,6 +119,9 @@ additionalProperties:
>          bias-disable: true
>          bias-pull-down: true
>          bias-pull-up: true
> +        input-schmitt-enable: true
> +        input-schmitt-disable: true
> +        drive-open-drain: true

I think you also need "drive-push-pull", to disable open drain.

>          renesas,output-impedance:
>            description:
>              Output impedance for pins on the RZ/V2H(P) SoC. The value provided by this

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