linux-kernel - RE: [PATCH v4 3/4] pinctrl: renesas: pinctrl-rzg2l: Add the missing port pins P19 to P28

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Message-ID:
 <TYCPR01MB11269F75A63DB020297DF21DA866F2@TYCPR01MB11269.jpnprd01.prod.outlook.com>
Date: Fri, 12 Jan 2024 17:10:40 +0000
From: Biju Das <biju.das.jz@...renesas.com>
To: "Lad, Prabhakar" <prabhakar.csengg@...il.com>
CC: Geert Uytterhoeven <geert+renesas@...der.be>, Magnus Damm
	<magnus.damm@...il.com>, Linus Walleij <linus.walleij@...aro.org>, Rob
 Herring <robh+dt@...nel.org>, Krzysztof Kozlowski
	<krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>,
	"linux-renesas-soc@...r.kernel.org" <linux-renesas-soc@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-riscv@...ts.infradead.org" <linux-riscv@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>, Claudiu Beznea
	<claudiu.beznea.uj@...renesas.com>, Prabhakar Mahadev Lad
	<prabhakar.mahadev-lad.rj@...renesas.com>
Subject: RE: [PATCH v4 3/4] pinctrl: renesas: pinctrl-rzg2l: Add the missing
 port pins P19 to P28



> -----Original Message-----
> From: Lad, Prabhakar <prabhakar.csengg@...il.com>
> Sent: Friday, January 12, 2024 5:06 PM
> Subject: Re: [PATCH v4 3/4] pinctrl: renesas: pinctrl-rzg2l: Add the
> missing port pins P19 to P28
> 
> Hi Biju,
> 
> Thank you for the review.
> 
> On Fri, Jan 12, 2024 at 2:31 PM Biju Das <biju.das.jz@...renesas.com>
> wrote:
> >
> >
> > Hi Prabhakar,
> >
> > > -----Original Message-----
> > > From: Prabhakar <prabhakar.csengg@...il.com>
> > > Sent: Friday, January 12, 2024 2:26 PM
> > > Subject: [PATCH v4 3/4] pinctrl: renesas: pinctrl-rzg2l: Add the
> > > missing port pins P19 to P28
> > >
> <snip>
> > >
> > > +/**
> > > + * struct rzg2l_variable_pin_cfg - pin data cfg
> > > + * @cfg: port pin configuration
> > > + * @port: port number
> > > + * @pin: port pin
> > > + */
> > > +struct rzg2l_variable_pin_cfg {
> > > +     u32 cfg:20;
> > > +     u8 port:5;
> >
> >  u32 ??
> This is done based on the feedback provided previously by Geert [0].
> 
> > > +     u8 pin:5;
> >
> >  u32 ??
> >
> ditto.
> 

As per[0] suggestion is,

As cfg only contains the lower bits (PIN_CFG_*), I think you can fit
everything in a u32:

    u32 cfg: 20;
    u32 port: 5;
    u32 pin: 3;

Cheers,
Biju