linux-kernel - [PATCH 3/4] devicetree: add a binding for a group of regulator

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Date:	Mon, 24 Nov 2014 14:02:02 +0100
From:	Alban Bedel <alban.bedel@...onic-design.de>
To:	linux-kernel@...r.kernel.org
Cc:	devicetree@...r.kernel.org,
	Alban Bedel <alban.bedel@...onic-design.de>,
	Grant Likely <grant.likely@...aro.org>,
	Mark Brown <broonie@...nel.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	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 3/4] devicetree: add a binding for a group of regulator

Signed-off-by: Alban Bedel <alban.bedel@...onic-design.de>
---
 .../devicetree/bindings/regulator/group.txt        | 26 ++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/regulator/group.txt

diff --git a/Documentation/devicetree/bindings/regulator/group.txt b/Documentation/devicetree/bindings/regulator/group.txt
new file mode 100644
index 0000000..5f811cf
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/group.txt
@@ -0,0 +1,26 @@
+Regulator Group
+
+This binding allow creating a group of regulators for use with simple
+drivers that only expect a single power supply. Additionally it is
+possible to enforce the enable ordering to create simple power up
+sequences.
+
+Required properties:
+- compatible : Must be "regulator-group".
+- regulator-supplies : List of the supplies names.
+- <name>-supply : One entry for each supply defined in regulator-supplies.
+
+Optional properties:
+- ordered-supplies : set if the supplies should be enabled in order,
+   otherwise they are all enable or disabled in parallel.
+- any property defined in regulator.txt
+
+Example:
+
+  regulator {
+	compatible = "regulator-group";
+	regulator-supplies = "vcc_a", "vcc_b";
+	vcc_a-supply = <&vcc_a>;
+	vcc_b-supply = <&vcc_b>;
+	ordered-supplies;
+  };
-- 
2.1.3

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