linux-kernel - [PATCH 2/2] regulator: tps65132: add device-tree binding

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Date:   Mon, 6 Mar 2017 22:07:40 +0530
From:   Venkat Reddy Talla <vreddytalla@...dia.com>
To:     <lgirdwood@...il.com>, <broonie@...nel.org>,
        <linux-kernel@...r.kernel.org>, <robh+dt@...nel.org>,
        <mark.rutland@....com>, <devicetree@...r.kernel.org>
CC:     <ldewangan@...dia.com>, <vreddytalla@...dia.com>
Subject: [PATCH 2/2] regulator: tps65132: add device-tree binding

Adding tps65132 regulator devicetree binding documentation

Signed-off-by: Venkat Reddy Talla <vreddytalla@...dia.com>
---
 .../bindings/regulator/tps65132-regulator.txt      | 46 ++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/regulator/tps65132-regulator.txt

diff --git a/Documentation/devicetree/bindings/regulator/tps65132-regulator.txt b/Documentation/devicetree/bindings/regulator/tps65132-regulator.txt
new file mode 100644
index 0000000..1ef6ede
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/tps65132-regulator.txt
@@ -0,0 +1,46 @@
+TPS65132 regulators
+
+Required properties:
+- compatible: "ti,tps65132"
+- reg: I2C slave address
+
+Optional Subnode:
+Device supports two regulators OUTP and OUTN. A sub node within the
+   device node descrbe the properties of these regulators. The sub-node
+   names must be as follows:
+	-For regulator outp, the sub node name should be "outp".
+	-For regulator outn, the sub node name should be "outn".
+
+-ti,enable-gpio: Regulators are controlled by the input pins. If
+   it is connected to GPIO through host system then provide the
+   gpio number as per gpio.txt.
+-ti,disable-active-discharge: Boolean, presence of this property
+   will disable active discharge on the regulator output.
+-ti,active-discharge-gpio: Some configurations use delay mechanisms
+  on the enable pin, to keep the regulator enabled for some time after
+  the enable signal goes low. This GPIO is used to actively discharge
+  the delay mechanism. Requires specification of ti,active-discharge-time
+-ti,active-discharge-time: how long the active discharge gpio should be
+  asserted for during active discharge, in microseconds.
+
+Each regulator is defined using the standard binding for regulators.
+
+Example:
+
+	tps65132@3e {
+		compatible = "ti,tps65132";
+
+		outp {
+			regulator-name = "outp";
+			regulator-boot-on;
+			regulator-always-on;
+			ti,enable-gpio = <&gpio 23 0>;
+		};
+
+		outn {
+			regulator-name = "outn";
+			regulator-boot-on;
+			regulator-always-on;
+			ti,enable-gpio = <&gpio 40 0>;
+		};
+	};
-- 
2.1.4