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Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0161-overlays-Add-gpio-no-bank0-irq-overlay.patch')
-rw-r--r--target/linux/brcm2708/patches-4.19/950-0161-overlays-Add-gpio-no-bank0-irq-overlay.patch60
1 files changed, 60 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0161-overlays-Add-gpio-no-bank0-irq-overlay.patch b/target/linux/brcm2708/patches-4.19/950-0161-overlays-Add-gpio-no-bank0-irq-overlay.patch
new file mode 100644
index 0000000000..7a93d2fd23
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0161-overlays-Add-gpio-no-bank0-irq-overlay.patch
@@ -0,0 +1,60 @@
+From afe88750090d60d94b365250968e116ec88448c1 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 18 Jul 2018 17:25:00 +0100
+Subject: [PATCH] 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>;
++ };
++ };
++};