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From:   "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
Date:   Tue, 24 May 2022 10:01:20 +0100
Message-ID: <CA+V-a8s8K0VaNunrFnW_BzPCHmi9RK887bb1tBfodbxBmGOvPg@mail.gmail.com>
Subject: Re: [PATCH v5 5/5] pinctrl: renesas: pinctrl-rzg2l: Add IRQ domain to
 handle GPIO interrupt
To:     Linus Walleij <linus.walleij@linaro.org>
Cc:     Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>,
        Marc Zyngier <maz@kernel.org>,
        Geert Uytterhoeven <geert+renesas@glider.be>,
        Thomas Gleixner <tglx@linutronix.de>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Bartosz Golaszewski <brgl@bgdev.pl>,
        Thierry Reding <thierry.reding@gmail.com>,
        Jonathan Hunter <jonathanh@nvidia.com>,
        Bjorn Andersson <bjorn.andersson@linaro.org>,
        Andy Gross <agross@kernel.org>,
        Philipp Zabel <p.zabel@pengutronix.de>,
        Andy Shevchenko <andy.shevchenko@gmail.com>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>,
        linux-tegra <linux-tegra@vger.kernel.org>,
        linux-arm-msm <linux-arm-msm@vger.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@vger.kernel.org>, LKML <linux-kernel@vger.kernel.org>,
        Linux-Renesas <linux-renesas-soc@vger.kernel.org>,
        Phil Edworthy <phil.edworthy@renesas.com>,
        Biju Das <biju.das.jz@bp.renesas.com>
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Hi Linus,

Thank you for the review.

On Tue, May 24, 2022 at 9:57 AM Linus Walleij <linus.walleij@linaro.org> wrote:
>
> On Mon, May 23, 2022 at 7:43 PM Lad Prabhakar
> <prabhakar.mahadev-lad.rj@bp.renesas.com> wrote:
>
> > Add IRQ domain to RZ/G2L pinctrl driver to handle GPIO interrupt.
> >
> > GPIO0-GPIO122 pins can be used as IRQ lines but only 32 pins can be
> > used as IRQ lines at a given time. Selection of pins as IRQ lines
> > is handled by IA55 (which is the IRQC block) which sits in between the
> > GPIO and GIC.
> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> I don't know if I'm too tired or reading it wrong, but it seems you
> went through the trouble of making it possible to override .free() in
> the irqdomain in patch 3/5 and yet not using it in this patch 5/5?
>
I think you missed it, free callback is overridden with
rzg2l_gpio_irq_domain_free().

[0] https://patchwork.kernel.org/project/linux-renesas-soc/patch/20220523174238.28942-6-prabhakar.mahadev-lad.rj@bp.renesas.com/

Cheers,
Prabhakar