Commit 6d27aa15 authored by Phil Elwell's avatar Phil Elwell
Browse files

overlays: Add gpio-no-bank0-irq overlay 

See: https://github.com/raspberrypi/linux/issues/2590



Signed-off-by: default avatarPhil Elwell <phil@raspberrypi.org>
parent 94a06fb8

arch/arm/boot/dts/overlays/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -39,6 +39,7 @@ 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 \

arch/arm/boot/dts/overlays/README

+9 −0
Original line number Diff line number Diff line
@@ -619,6 +619,15 @@ Params: gpio GPIO pin to trigger on (default 3) 
        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.

arch/arm/boot/dts/overlays/gpio-no-bank0-irq-overlay.dts

0 → 100755
+14 −0
Original line number Diff line number Diff line 
/dts-v1/;

/plugin/;



/ {

	compatible = "brcm,bcm2835";



	fragment@0 {

		// Configure the gpio pin controller

		target = <&gpio>;

		__overlay__ {

			    interrupts = <255 255>, <2 18>;

		};

	};

};