From 174a2e7f83a033252da488edd3072f446f82325d Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Tue, 19 Jun 2018 15:04:45 +0100
Subject: [PATCH 316/454] overlays: Add gpio-no-irq overlay

An overlay to disable all GPIO interrupts.

See: https://github.com/raspberrypi/linux/issues/2550

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
---
 arch/arm/boot/dts/overlays/Makefile                |  1 +
 arch/arm/boot/dts/overlays/README                  |  7 +++++++
 arch/arm/boot/dts/overlays/gpio-no-irq-overlay.dts | 14 ++++++++++++++
 3 files changed, 22 insertions(+)
 create mode 100644 arch/arm/boot/dts/overlays/gpio-no-irq-overlay.dts

--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -35,6 +35,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
 	gpio-ir.dtbo \
 	gpio-ir-tx.dtbo \
 	gpio-key.dtbo \
+	gpio-no-irq.dtbo \
 	gpio-poweroff.dtbo \
 	gpio-shutdown.dtbo \
 	hifiberry-amp.dtbo \
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -583,6 +583,13 @@ Params: gpio                    GPIO pin
         keycode                 Set the key code for the button
 
 
+Name:   gpio-no-irq
+Info:   Use this overlay to disable all GPIO interrupts, which can be useful
+        for user-space GPIO edge detection systems.
+Load:   dtoverlay=gpio-no-irq
+Params: <None>
+
+
 Name:   gpio-poweroff
 Info:   Drives a GPIO high or low on poweroff (including halt). Enabling this
         overlay will prevent the ability to boot by driving GPIO3 low.
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/gpio-no-irq-overlay.dts
@@ -0,0 +1,14 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "brcm,bcm2835";
+
+	fragment@0 {
+		// Configure the gpio pin controller
+		target = <&gpio>;
+		__overlay__ {
+			    interrupts;
+		};
+	};
+};