On 3/27/2020 9:15 AM, Matthias Brugger wrote:
>
>
> On 26/03/2020 14:44, Nicolas Saenz Julienne wrote:
>> 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@xxxxxxx>
>
> Reviewed-by: Matthias Brugger <mbrugger@xxxxxxxx>
Should this be squashed into "ARM: dts: bcm283x: Fix vc4's firmware bus
DMA limitations"? I have not gotten a response it has been accepted yet.
--
Florian
