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: <CA+V-a8v7Y83cS4EHd0K5hvbCLFxE8xrv9zajDMvwT_R0RH59vg@mail.gmail.com>
Date: Fri, 4 Oct 2024 12:40:22 +0100
From: "Lad, Prabhakar" <prabhakar.csengg@...il.com>
To: Geert Uytterhoeven <geert@...ux-m68k.org>
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 Geert,

Thank you for the review.

On Fri, Oct 4, 2024 at 8:54 AM Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
>
> 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.
>
Agreed, I will add support for it and send a v2.

Cheers,
Prabhakar

> >          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