diff --git a/arch/arm/boot/dts/overlays/Makefile b/arch/arm/boot/dts/overlays/Makefile index 1429d4adbe6b..b543b2f478ab 100644 --- a/arch/arm/boot/dts/overlays/Makefile +++ b/arch/arm/boot/dts/overlays/Makefile @@ -123,6 +123,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \ tinylcd35.dtbo \ uart0.dtbo \ uart1.dtbo \ + upstream-aux-interrupt.dtbo \ vc4-fkms-v3d.dtbo \ vc4-kms-v3d.dtbo \ vga666.dtbo \ diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README index 2576151e825b..4c3047a324cc 100644 --- a/arch/arm/boot/dts/overlays/README +++ b/arch/arm/boot/dts/overlays/README @@ -1730,6 +1730,13 @@ Params: txd1_pin GPIO pin for TXD1 (14, 32 or 40 - default 14) rxd1_pin GPIO pin for RXD1 (15, 33 or 41 - default 15) +Name: upstream-aux-interrupt +Info: Allow usage of downstream .dtb with upstream kernel by binding AUX + devices directly to the shared AUX interrupt line. +Load: dtoverlay=upstream-aux-interrupt +Params: + + Name: vc4-fkms-v3d Info: Enable Eric Anholt's DRM VC4 V3D driver on top of the dispmanx display stack. diff --git a/arch/arm/boot/dts/overlays/upstream-aux-interrupt-overlay.dts b/arch/arm/boot/dts/overlays/upstream-aux-interrupt-overlay.dts new file mode 100644 index 000000000000..04e271b72a3a --- /dev/null +++ b/arch/arm/boot/dts/overlays/upstream-aux-interrupt-overlay.dts @@ -0,0 +1,33 @@ +// Overlay for missing AUX interrupt controller +// Instead we bind all AUX devices to the generic AUX interrupt line +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&uart1>; + __overlay__ { + interrupt-parent = <&intc>; + interrupts = <0x1 0x1d>; + }; + }; + + fragment@1 { + target = <&spi1>; + __overlay__ { + interrupt-parent = <&intc>; + interrupts = <0x1 0x1d>; + }; + }; + + fragment@2 { + target = <&spi2>; + __overlay__ { + interrupt-parent = <&intc>; + interrupts = <0x1 0x1d>; + }; + }; +}; +