linux-kernel - RE: [PATCH RFC 2/5] pinctrl: renesas: rzg2l: Fix configuring the GPIO pins as interrupts

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Date:   Tue, 8 Nov 2022 09:15:58 +0000
From:   Biju Das <biju.das.jz@...renesas.com>
To:     "Lad, Prabhakar" <prabhakar.csengg@...il.com>
CC:     Thomas Gleixner <tglx@...utronix.de>,
        Marc Zyngier <maz@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "linux-renesas-soc@...r.kernel.org" 
        <linux-renesas-soc@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: RE: [PATCH RFC 2/5] pinctrl: renesas: rzg2l: Fix configuring the GPIO
 pins as interrupts



> -----Original Message-----
> From: Lad, Prabhakar <prabhakar.csengg@...il.com>
> Sent: 08 November 2022 09:10
> To: Biju Das <biju.das.jz@...renesas.com>
> Cc: Thomas Gleixner <tglx@...utronix.de>; Marc Zyngier <maz@...nel.org>; Rob
> Herring <robh+dt@...nel.org>; Krzysztof Kozlowski
> <krzysztof.kozlowski+dt@...aro.org>; Geert Uytterhoeven
> <geert+renesas@...der.be>; Magnus Damm <magnus.damm@...il.com>; Linus Walleij
> <linus.walleij@...aro.org>; linux-gpio@...r.kernel.org; linux-renesas-
> soc@...r.kernel.org; devicetree@...r.kernel.org; linux-
> kernel@...r.kernel.org; Prabhakar Mahadev Lad <prabhakar.mahadev-
> lad.rj@...renesas.com>
> Subject: Re: [PATCH RFC 2/5] pinctrl: renesas: rzg2l: Fix configuring the
> GPIO pins as interrupts
> 
> Hi Biju,
> 
> On Tue, Nov 8, 2022 at 7:14 AM Biju Das <biju.das.jz@...renesas.com> wrote:
> >
> > Hi Prabhakar,
> >
> >
> > > Subject: [PATCH RFC 2/5] pinctrl: renesas: rzg2l: Fix configuring
> > > the GPIO pins as interrupts
> > >
> > > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> > >
> > > On the RZ/G2UL SoC we have less number of pins compared to RZ/G2L
> > > and also the pin configs are completely different. This patch makes
> > > sure we use the appropriate pin configs for each SoC (which is
> > > passed as part of the OF
> > > data) while configuring the GPIO pin as interrupts instead of using
> > > rzg2l_gpio_configs[] for all the SoCs.
> > >
> >
> > Looks like you are missing fixes tag.
> > Fixes: db2e5f21a48ed ("pinctrl: renesas: pinctrl-rzg2l: Add IRQ domain
> > to handle GPIO interrupt")
> >
> I did think about but then I realised this fixes the GPIO IRQ functions only
> and we didn't support IRQC and GPIO interrupts up until now so I hadn't added
> the fixes tag.

Yep that is true, even though we have pinctrl support for both RZ/G2L and RZ/G2UL.
Interrupt support added only for RZ/G2L at that time. Maybe change to reflect
RZ/G2UL GPIO interrupt support.

Cheers,
Biju