Hi Stephen,

On Nov 24, 2016, at 12:25 , Stephen Boyd [off-list ref] wrote:

This is one small chunk of work related to DT overlays for expansion
boards. It would be good to have a way to expose #<list>-cells types of
providers through a connector in a standard way. So we introduce a way
to make "nexus" nodes for these types of properties to remap the consumer
number space to the other side of the connector's number space. It's
basically a copy of the interrupt nexus implementation, but without
the address space matching design and interrupt-parent walking.

The first patch implements a generic method to do this, and the second patch
adds a unit test for it. The third patch is more of an example than anything
else. It shows how we would modify frameworks to use the new API.

Excellent. It was about time this happened.

Stephen Boyd (3):
 of: Support parsing phandle argument lists through a nexus node
 of: unittest: Add phandle remapping test
 gpio: Support gpio nexus dt bindings

drivers/gpio/gpiolib-of.c                   |   5 +-
drivers/of/base.c                           | 146 ++++++++++++++++++++++++++++
drivers/of/unittest-data/testcases.dts      |  11 +++
drivers/of/unittest-data/tests-phandle.dtsi |  24 +++++
drivers/of/unittest.c                       | 124 +++++++++++++++++++++++
include/linux/of.h                          |  14 +++
6 files changed, 322 insertions(+), 2 deletions(-)

-- 
2.10.0.297.gf6727b0

Comments inline?

Regards

? Pantelis