You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
61 lines
1.8 KiB
Diff
61 lines
1.8 KiB
Diff
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;
|
|
+ };
|
|
+ };
|
|
+};
|