Commit 55c7c062 authored Mar 19, 2020 by Nicolas Saenz Julienne Committed by Florian Fainelli Mar 22, 2020

ARM: dts: bcm283x: Fix vc4's firmware bus DMA limitations



The bus is virtual and devices have to inherit their DMA constraints
from the underlying interconnect. So add an empty dma-ranges property to
the bus node, implying the firmware bus' DMA constraints are identical to
its parent's.

Fixes: 7dbe8c62 ("ARM: dts: Add minimal Raspberry Pi 4 support")
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

parent 6687c201

arch/arm/boot/dts/bcm2835-rpi.dtsi

+1 −0

Original line number	Diff line number	Diff line
		@@ -15,6 +15,7 @@
		firmware: firmware {
		compatible = "raspberrypi,bcm2835-firmware", "simple-bus";
		mboxes = <&mailbox>;
		dma-ranges;
		};

		power: power {

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