> We have been checking for all DT platforms, and that's a bug for DT. > Copying that bug to ACPI is inexcusable given we know it's a bug to do > so. We'll, perhaps it should be named 'used-by-firmware' and actually it's just as valid under ACPI as it is on RTAS systems. All it does is stop the OS from using the port. > I understand that. However, where a binding doesn't make sense (as in > this case), it shouldn't be enabled for ACPI as it provides a larger > surface area for misuse, for no benefit. These are *optional* properties. They were optional precisely *because* they only make sense in some cases. I don't know that it makes sense to take them away. The benefit we get is *consistency*. For example if someone *does* use the property in question as 'used-by-firmware' and expects the OS not to touch it, we don't want that to change behaviour between ACPI and fdt boots. -- dwmw2 -- 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