Hi.
In patch:
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/arch/arm/boot/dts/sun8i-r40.dtsi?h=next-20200317&id=8614a5e9720633e0c4be70b35fce8faa4b2d485a
mbus has 3 dma-ranges but does not specify the number of address-cells
which gives a warning when decompiling dtb:
bpi@bpi-m2u:/tmp/u-boot$ dtc -I dtb -O dts /tmp/u-boot/arch/arm/dts/sun8i-
r40-bananapi-m2-ultra.dtb -o /tmp/tmp.dts
/tmp/tmp.dts:
Warning (dma_ranges_format): /soc/dram-controller@1c62000:dma-ranges:
"dma-ranges" property has invalid length (12 bytes) (parent
#address-cells == 1, child #address-cells == 2, #size-cells == 1)
I have added: #address-cells = <1> and the warning has disappeared.
mbus: dram-controller@1c62000 {
compatible = "allwinner,sun8i-r40-mbus";
reg = <0x01c62000 0x1000>;
clocks = <&ccu 155>;
dma-ranges = <0x00000000 0x40000000 0x80000000>;
+ #address-cells = <1>;
#interconnect-cells = <1>;
};
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