Messages in this thread | | | From | Linus Walleij <> | Date | Thu, 23 Sep 2021 23:37:50 +0200 | Subject | Re: [RFC PATCH v2 3/4] pinctrl: renesas: pinctrl-rzg2l: Add IRQ domain to handle GPIO interrupt |
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On Tue, Sep 21, 2021 at 9:30 PM Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> wrote:
> Add IRQ domian 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 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>
Why can't you just use the hierarchical IRQ domain handling inside gpiolib?
See for example drivers/gpio/gpio-ixp4xx.c for an example of how this is used.
Yours, Linus Walleij
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