On Tue, Mar 26, 2024 at 02:49:01AM +0200, Laurent Pinchart wrote:
> The raspberrypi,bcm2835-firmware devices requires a dma-ranges property,
> and, as a result, also needs to specify #address-cells and #size-cells.
> Those properties have been added to thebcm2835-rpi.dtsi in commits
> be08d278eb09 ("ARM: dts: bcm283x: Add cells encoding format to firmware
> bus") and 55c7c0621078 ("ARM: dts: bcm283x: Fix vc4's firmware bus DMA
> limitations"), but the DT bindings haven't been updated, resulting in
> validation errors:
I don't understand. We treat no dma-ranges the same as empty dma-ranges
(dma-ranges;). If we didn't, *every* DT would be broken.
We should never have dma-ranges without ranges either.
Rob
