linux-kernel - [PATCH 1/2] devicetree: add a binding for GPIOs going though a level shifter

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Date:	Mon, 24 Nov 2014 15:01:35 +0100
From:	Alban Bedel <alban.bedel@...onic-design.de>
To:	linux-gpio@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	Alban Bedel <alban.bedel@...onic-design.de>,
	Grant Likely <grant.likely@...aro.org>,
	Alexandre Courbot <gnurou@...il.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Kumar Gala <galak@...eaurora.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Mark Rutland <mark.rutland@....com>,
	Pawel Moll <pawel.moll@....com>,
	Rob Herring <robh+dt@...nel.org>
Subject: [PATCH 1/2] devicetree: add a binding for GPIOs going though a level shifter

Signed-off-by: Alban Bedel <alban.bedel@...onic-design.de>
---
 .../devicetree/bindings/gpio/gpio-level-shifter.txt       | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/gpio/gpio-level-shifter.txt

diff --git a/Documentation/devicetree/bindings/gpio/gpio-level-shifter.txt b/Documentation/devicetree/bindings/gpio/gpio-level-shifter.txt
new file mode 100644
index 0000000..e108c43
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-level-shifter.txt
@@ -0,0 +1,15 @@
+GPIO level shifter
+
+This binding allow supporting GPIOs going though a level shifter.
+
+Required properties:
+- compatible : should be "gpio-level-shifter"
+- data-gpios : list of the data GPIO phandles
+- #gpio-cells : should be 2
+- gpio-controller : marks the device node as a GPIO controller
+
+Optional properties:
+- enable-gpio : phandle of the GPIO that control the level shifter enable pin
+- direction-gpio : phandle of the GPIO that control the level shifter direction
+- vcca-supply : phandle of the regulator for side A of the level shifter
+- vccb-supply : phandle of the regulator for side B of the level shifter
-- 
2.1.3

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