| Message ID | 20200319190013.21377-1-nsaenzjulienne@suse.de (mailing list archive) |
|---|---|
| State | Mainlined |
| Commit | 55c7c0621078bd73e9d4d2a11eb36e61bc6fe998 |
| Headers | show |
| Series | ARM: dts: bcm283x: Fix vc4's firmware bus DMA limitations | expand |
On Thu, 19 Mar 2020 20:00:13 +0100, Nicolas Saenz Julienne <nsaenzjulienne@suse.de> wrote: > 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> > --- Applied to devicetree/fixes, thanks! -- Florian
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 @@ soc { firmware: firmware { compatible = "raspberrypi,bcm2835-firmware", "simple-bus"; mboxes = <&mailbox>; + dma-ranges; }; power: power {
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> --- arch/arm/boot/dts/bcm2835-rpi.dtsi | 1 + 1 file changed, 1 insertion(+)