Re: [PATCH v4 00/13] Add ACPI _DSD and unified device properties support

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




> 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




[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]
  Powered by Linux