On Wednesday 03 February 2016 16:02:05 Zubair Lutfullah Kakakhel wrote: > Hence, I find the original binding simpler and easier to understand when looking at the hardware manual > > + uctl@118006c000000 { > + compatible = "cavium,octeon-7130-sata-uctl"; > + reg = <0x11800 0x6c000000 0x0 0x100>; > + ranges; /* Direct mapping */ > + dma-ranges; > + #address-cells = <2>; > + #size-cells = <2>; > + > + sata: sata@16c0000000000 { > + compatible = "cavium,octeon-7130-ahci"; > + reg = <0x16c00 0x00000000 0x0 0x200>; > + interrupt-parent = <&cibsata>; > + interrupts = <2 4>; /* Bit: 2, level */ > + }; > + }; > > Is it possible to let this example go in as is? > I don't have the hardware manual, so I'm just guessing what the hardware looks like. If the manual describes the device as a bridge with a 1:1 mapping, then your existing example above absolutely makes sense. Arnd -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html