From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Boyd Subject: [PATCH 0/2] OF phandle nexus support + GPIO nexus Date: Thu, 24 Nov 2016 02:25:26 -0800 Message-ID: <20161124102529.20212-1-stephen.boyd@linaro.org> Return-path: Received: from mail-pg0-f46.google.com ([74.125.83.46]:35249 "EHLO mail-pg0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756944AbcKXKZc (ORCPT ); Thu, 24 Nov 2016 05:25:32 -0500 Received: by mail-pg0-f46.google.com with SMTP id p66so17352290pga.2 for ; Thu, 24 Nov 2016 02:25:32 -0800 (PST) Sender: linux-gpio-owner@vger.kernel.org List-Id: linux-gpio@vger.kernel.org To: Rob Herring , Frank Rowand Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-gpio@vger.kernel.org, Pantelis Antoniou , Linus Walleij , Mark Brown This is one small chunk of work related to DT overlays for expansion boards. It would be good to have a way to expose #-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