mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-22 06:57:57 +00:00
61 lines
1.9 KiB
Diff
61 lines
1.9 KiB
Diff
From 032af2295cee39295890fa7eee88c3ec76369747 Mon Sep 17 00:00:00 2001
|
|
From: Phil Elwell <phil@raspberrypi.org>
|
|
Date: Wed, 18 Jul 2018 17:25:00 +0100
|
|
Subject: [PATCH 176/782] overlays: Add gpio-no-bank0-irq overlay
|
|
|
|
See: https://github.com/raspberrypi/linux/issues/2590
|
|
|
|
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
|
|
---
|
|
arch/arm/boot/dts/overlays/Makefile | 1 +
|
|
arch/arm/boot/dts/overlays/README | 9 +++++++++
|
|
.../dts/overlays/gpio-no-bank0-irq-overlay.dts | 14 ++++++++++++++
|
|
3 files changed, 24 insertions(+)
|
|
create mode 100755 arch/arm/boot/dts/overlays/gpio-no-bank0-irq-overlay.dts
|
|
|
|
--- a/arch/arm/boot/dts/overlays/Makefile
|
|
+++ b/arch/arm/boot/dts/overlays/Makefile
|
|
@@ -37,6 +37,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
|
|
gpio-ir.dtbo \
|
|
gpio-ir-tx.dtbo \
|
|
gpio-key.dtbo \
|
|
+ gpio-no-bank0-irq.dtbo \
|
|
gpio-no-irq.dtbo \
|
|
gpio-poweroff.dtbo \
|
|
gpio-shutdown.dtbo \
|
|
--- a/arch/arm/boot/dts/overlays/README
|
|
+++ b/arch/arm/boot/dts/overlays/README
|
|
@@ -597,6 +597,15 @@ Params: gpio GPIO pin
|
|
keycode Set the key code for the button
|
|
|
|
|
|
+Name: gpio-no-bank0-irq
|
|
+Info: Use this overlay to disable GPIO interrupts for GPIOs in bank 0 (0-27),
|
|
+ which can be useful for UIO drivers.
|
|
+ N.B. Using this overlay will trigger a kernel WARN during booting, but
|
|
+ this can safely be ignored - the system should work as expected.
|
|
+Load: dtoverlay=gpio-no-bank0-irq
|
|
+Params: <None>
|
|
+
|
|
+
|
|
Name: gpio-no-irq
|
|
Info: Use this overlay to disable all GPIO interrupts, which can be useful
|
|
for user-space GPIO edge detection systems.
|
|
--- /dev/null
|
|
+++ b/arch/arm/boot/dts/overlays/gpio-no-bank0-irq-overlay.dts
|
|
@@ -0,0 +1,14 @@
|
|
+/dts-v1/;
|
|
+/plugin/;
|
|
+
|
|
+/ {
|
|
+ compatible = "brcm,bcm2835";
|
|
+
|
|
+ fragment@0 {
|
|
+ // Configure the gpio pin controller
|
|
+ target = <&gpio>;
|
|
+ __overlay__ {
|
|
+ interrupts = <255 255>, <2 18>;
|
|
+ };
|
|
+ };
|
|
+};
|