Re: [PATCH v3 6/8] dt-bindings: soc: renesas: Add the Renesas RZ/N1 GPIO Interrupt Multiplexer

Herve Codina
2025-09-18T15:15:21Z

Hi Conor,

On Thu, 18 Sep 2025 16:06:04 +0100
Conor Dooley <conor@kernel.org> wrote:

> On Thu, Sep 18, 2025 at 12:40:04PM +0200, Herve Codina (Schneider Electric) wrote:
> > On the Renesas RZ/N1 SoC, GPIOs can generate interruptions. Those
> > interruption lines are multiplexed by the GPIO Interrupt Multiplexer in
> > order to map 32 * 3 GPIO interrupt lines to 8 GIC interrupt lines.
> >
> > The GPIO interrupt multiplexer IP does nothing but select 8 GPIO
> > IRQ lines out of the 96 available to wire them to the GIC input lines.
> >
> > Signed-off-by: Herve Codina (Schneider Electric) <herve.codina@bootlin.com>
> > ---
> > .../soc/renesas/renesas,rzn1-gpioirqmux.yaml | 87 +++++++++++++++++++
> > 1 file changed, 87 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/soc/renesas/renesas,rzn1-gpioirqmux.yaml
>
> This is an interrupt controller, please move it to that subdirectory.

Not so sure. It is a nexus node. It routes interrupt signals to the
interrupt controller (interrupt-map) but it is not an interrupt controller
itself.

I am not sure that it should be moved to the interrupt-controller
directory.

> Otherwise,
> Acked-by: Conor Dooley <conor.dooley@microchip.com>

Best regards,
Hervé