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authorNicolas Saenz Julienne <nsaenzjulienne@suse.de>2020-03-19 20:00:13 +0100
committerFlorian Fainelli <f.fainelli@gmail.com>2020-03-22 14:45:24 -0700
commit55c7c0621078bd73e9d4d2a11eb36e61bc6fe998 (patch)
treead35abc89d2fcd9081aeca1903b7c8ba63a9de94 /arch/arm/boot
parent6687c201fdc3139315c2ea7ef96c157672805cdc (diff)
downloadlinux-sh-55c7c0621078bd73e9d4d2a11eb36e61bc6fe998.tar.gz
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: 7dbe8c62ceeb ("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>
Diffstat (limited to 'arch/arm/boot')
-rw-r--r--arch/arm/boot/dts/bcm2835-rpi.dtsi1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi
index 394c8a71b13b..fd2c766e0f71 100644
--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
+++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
@@ -15,6 +15,7 @@
firmware: firmware {
compatible = "raspberrypi,bcm2835-firmware", "simple-bus";
mboxes = <&mailbox>;
+ dma-ranges;
};
power: power {