Hi Arnd,

On 09/03/2014 11:09 AM, Arnd Bergmann wrote:

On Wednesday 03 September 2014 01:00:23 Rafael J. Wysocki wrote:

quoted

Our intention is specifically not to use "random incompatible bindings"
in that.  We'd rather have a common venue and process for establishing
new bindings for both DT and _DSD in a compatible way.

Right, I think everyone is on the same page for the embedded x86 case,
my point was that there is no consensus about that yet among the
parties involved in arm64 servers.

However, in the case of MAC devices where you might need to specify just
a couple of properties using _DSD, a specific set of discussions has
been instigated. As you mentioned, though, this pertains only to certain
devices and isn't necessarily true for every Ethernet device.
Consequently, while a Juno PoC patch might use a kludge today, that
doesn't mean it's a limitation of ACPI, just of certain devices.

Jon.