linux-kernel - [PATCH 0/2] OF phandle nexus support + GPIO nexus

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Date:   Thu, 24 Nov 2016 02:25:26 -0800
From:   Stephen Boyd <stephen.boyd@...aro.org>
To:     Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-gpio@...r.kernel.org,
        Pantelis Antoniou <pantelis.antoniou@...sulko.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Mark Brown <broonie@...nel.org>
Subject: [PATCH 0/2] OF phandle nexus support + GPIO nexus

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.

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