On Thu, Aug 22, 2013 at 01:56:32PM -0600, Stephen Warren wrote:

On 08/22/2013 05:40 AM, Nicolin Chen wrote:

quoted

Documentation/devicetree/bindings/sound/spdif-receiver.txt
If I understand correctly, this doc for the dummy codec should be invalid?

Yes, I'm not convinced that binding is a good idea; it describes
something that often doesn't actually exist in HW. (Sometimes there's a
real S/PDIF receiving device on board, but sometimes there's nothing
except a jack/connector).

It'd be useful if other DT binding maintainers could weigh in on this to
confirm/deny my thoughts.

I think the binding should be changed to replace the word "dummy" with
"generic" and perhaps some verbiage about not requiring software
configuration.  I think given the unidirectional nature of S/PDIF it's
reasonable to represent a jack like this - the hardware can't generally
tell if there's anything at the other end of the link anyway, for all
pratical purposes the transmit end just has to blindly send.