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| author | Nicolas Saenz Julienne <nsaenzjulienne@suse.de> | 2020-03-26 14:44:13 +0100 |
|---|---|---|
| committer | Nicolas Saenz Julienne <nsaenzjulienne@suse.de> | 2020-03-27 21:36:17 +0100 |
| commit | be08d278eb09210fefbad4c9b27d7843f1c096b2 (patch) | |
| tree | cab46ab215cae59ebaa334d7a82938213e650d3b /arch | |
| parent | ARM: dts: bcm283x: Fix vc4's firmware bus DMA limitations (diff) | |
| download | linux-be08d278eb09210fefbad4c9b27d7843f1c096b2.tar.xz linux-be08d278eb09210fefbad4c9b27d7843f1c096b2.zip | |
ARM: dts: bcm283x: Add cells encoding format to firmware bus
With the introduction of 55c7c0621078 ("ARM: dts: bcm283x: Fix vc4's
firmware bus DMA limitations") the firmware bus has to comply with
/soc's DMA limitations. Ultimately linking both buses to a same
dma-ranges property. The patch (and author) missed the fact that a bus'
#address-cells and #size-cells properties are not inherited, but set to
a fixed value which, in this case, doesn't match /soc's. This, although
not breaking Linux's DMA mapping functionality, generates ugly dtc
warnings.
Fix the issue by adding the correct address and size cells properties
under the firmware bus.
Fixes: 55c7c0621078 ("ARM: dts: bcm283x: Fix vc4's firmware bus DMA limitations")
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Link: https://lore.kernel.org/r/20200326134413.12298-1-nsaenzjulienne@suse.de
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/boot/dts/bcm2835-rpi.dtsi | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi index fd2c766e0f71..f7ae5a4530b8 100644 --- a/arch/arm/boot/dts/bcm2835-rpi.dtsi +++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi @@ -14,6 +14,9 @@ soc { firmware: firmware { compatible = "raspberrypi,bcm2835-firmware", "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + mboxes = <&mailbox>; dma-ranges; }; |