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From:   <Andrei.Stefanescu@microchip.com>
To:     <lgirdwood@gmail.com>, <broonie@kernel.org>, <robh+dt@kernel.org>,
        <mark.rutland@arm.com>, <gregkh@linuxfoundation.org>,
        <Nicolas.Ferre@microchip.com>
CC:     <Cristian.Birsan@microchip.com>, <Claudiu.Beznea@microchip.com>,
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        <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <Andrei.Stefanescu@microchip.com>
Subject: [PATCH 1/3] regulator: dt-bindings: add MCP16502 regulator bindings
Thread-Topic: [PATCH 1/3] regulator: dt-bindings: add MCP16502 regulator
 bindings
Thread-Index: AQHUe0Qg38ZobbJRekqKgZo6abU5dw==
Date:   Tue, 13 Nov 2018 11:29:24 +0000
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This patch describes the compatible and the device tree
bindings necessary for the MCP16502 PMIC.

Signed-off-by: Andrei Stefanescu <andrei.stefanescu@microchip.com>
---
 .../bindings/regulator/mcp16502-regulator.txt      | 107 +++++++++++++++++=
++++
 1 file changed, 107 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/regulator/mcp16502-re=
gulator.txt

diff --git a/Documentation/devicetree/bindings/regulator/mcp16502-regulator=
.txt b/Documentation/devicetree/bindings/regulator/mcp16502-regulator.txt
new file mode 100644
index 0000000..bb3d787
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/mcp16502-regulator.txt
@@ -0,0 +1,107 @@
+MCP16502 PMIC
+
+Required properties:
+- compatible: "microchip,mcp16502"
+- reg: I2C slave address
+- lpm-gpio: GPIO for LPM pin. Note that this GPIO *must* remain high durin=
g
+	     suspend-to-ram, keeping the PMIC into HIBERNATE mode.
+- regulators: A node that houses a sub-node for each regulator within
+              the device. Each sub-node is identified using the node's
+              name. The content of each sub-node is defined by the
+              standard binding for regulators; see regulator.txt.
+
+Regulator modes:
+2 - FPWM: higher precision, higher consumption
+4 - AutoPFM: lower precision, lower consumption
+
+Each regulator is defined using the standard binding for regulators.
+
+Example:
+
+mcp16502@5b {
+	compatible =3D "microchip,mcp16502";
+	reg =3D <0x5b>;
+	status =3D "okay";
+	lpm-gpios =3D <&pioBU 7 GPIO_ACTIVE_HIGH>;
+
+	regulators {
+		VDD_IO {
+			regulator-name =3D "VDD_IO";
+			regulator-min-microvolt =3D <1200000>;
+			regulator-max-microvolt =3D <3700000>;
+			regulator-initial-mode =3D <2>;
+			regulator-allowed-modes =3D <2>, <4>;
+			regulator-always-on;
+
+			regulator-state-mem {
+				regulator-off-in-suspend;
+				regulator-mode =3D <4>;
+			};
+		};
+
+		VDD_DDR {
+			regulator-name =3D "VDD_DDR";
+			regulator-min-microvolt =3D <600000>;
+			regulator-max-microvolt =3D <1850000>;
+			regulator-initial-mode =3D <2>;
+			regulator-allowed-modes =3D <2>, <4>;
+			regulator-always-on;
+
+			regulator-state-mem {
+				regulator-on-in-suspend;
+				regulator-mode =3D <4>;
+			};
+		};
+
+		VDD_CORE {
+			regulator-name =3D "VDD_CORE";
+			regulator-min-microvolt =3D <600000>;
+			regulator-max-microvolt =3D <1850000>;
+			regulator-initial-mode =3D <2>;
+			regulator-allowed-modes =3D <2>, <4>;
+			regulator-always-on;
+
+			regulator-state-mem {
+				regulator-off-in-suspend;
+				regulator-mode =3D <4>;
+			};
+		};
+
+		VDD_OTHER {
+			regulator-name =3D "VDD_OTHER";
+			regulator-min-microvolt =3D <600000>;
+			regulator-max-microvolt =3D <1850000>;
+			regulator-initial-mode =3D <2>;
+			regulator-allowed-modes =3D <2>, <4>;
+			regulator-always-on;
+
+			regulator-state-mem {
+				regulator-off-in-suspend;
+				regulator-mode =3D <4>;
+			};
+		};
+
+		LDO1 {
+			regulator-name =3D "LDO1";
+			regulator-min-microvolt =3D <1200000>;
+			regulator-max-microvolt =3D <3700000>;
+			regulator-always-on;
+
+			regulator-state-mem {
+				regulator-off-in-suspend;
+			};
+		};
+
+		LDO2 {
+			regulator-name =3D "LDO2";
+			regulator-min-microvolt =3D <1200000>;
+			regulator-max-microvolt =3D <3700000>;
+			regulator-always-on;
+
+			regulator-state-mem {
+				regulator-off-in-suspend;
+			};
+		};
+
+	};
+};
--=20
2.7.4