MIPS: mscc: ocelot: add interrupt controller properties to GPIO controller
The GPIO controller also serves as an interrupt controller for events on the GPIO it handles. An interrupt occurs whenever a GPIO line has changed. Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Paul Burton <paul.burton@mips.com> Patchwork: https://patchwork.linux-mips.org/patch/20015/ Cc: robh+dt@kernel.org Cc: mark.rutland@arm.com Cc: ralf@linux-mips.org Cc: jhogan@kernel.org Cc: linux-gpio@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: thomas.petazzoni@bootlin.com
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