linux-kernel - [PATCH 1/2] MIPS: mscc: ocelot: add interrupt controller properties to GPIO controller

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Date:   Wed, 25 Jul 2018 14:26:20 +0200
From:   Quentin Schulz <quentin.schulz@...tlin.com>
To:     alexandre.belloni@...tlin.com, robh+dt@...nel.org,
        mark.rutland@....com, linus.walleij@...aro.org
Cc:     ralf@...ux-mips.org, paul.burton@...s.com, jhogan@...nel.org,
        linux-gpio@...r.kernel.org, linux-mips@...ux-mips.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        thomas.petazzoni@...tlin.com,
        Quentin Schulz <quentin.schulz@...tlin.com>
Subject: [PATCH 1/2] 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@...tlin.com>
---
 arch/mips/boot/dts/mscc/ocelot.dtsi | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/mips/boot/dts/mscc/ocelot.dtsi b/arch/mips/boot/dts/mscc/ocelot.dtsi
index d7f0e3551500..afe8fc9011ea 100644
--- a/arch/mips/boot/dts/mscc/ocelot.dtsi
+++ b/arch/mips/boot/dts/mscc/ocelot.dtsi
@@ -168,6 +168,9 @@
 			gpio-controller;
 			#gpio-cells = <2>;
 			gpio-ranges = <&gpio 0 0 22>;
+			interrupt-controller;
+			interrupts = <13>;
+			#interrupt-cells = <2>;
 
 			uart_pins: uart-pins {
 				pins = "GPIO_6", "GPIO_7";
-- 
2.14.1