xref: /openbmc/linux/Documentation/devicetree/bindings/regulator/lm363x-regulator.txt (revision 45493684)

TI LMU LM363x regulator device tree bindings

LM363x regulator driver supports LM3631 and LM3632.
LM3631 has five regulators and LM3632 supports three regulators.

Required property:
  - compatible: "ti,lm363x-regulator"

Optional properties:
  LM3632 has external enable pins for two LDOs.
  - enable-gpios: Two GPIO specifiers for Vpos and Vneg control pins.
                  The first entry is Vpos, the second is Vneg enable pin.

Child nodes:
  LM3631
  - vboost
  - vcont
  - voref
  - vpos
  - vneg

  LM3632
  - vboost
  - vpos
  - vneg

  Optional properties of a child node:
  Each sub-node should contain the constraints and initialization.
  Please refer to [1].

Examples: Please refer to ti-lmu dt-bindings [2].

lm3631@29 {
	compatible = "ti,lm3631";
	reg = <0x29>;

	regulators {
		compatible = "ti,lm363x-regulator";

		vboost {
			regulator-name = "lcd_boost";
			regulator-min-microvolt = <4500000>;
			regulator-max-microvolt = <6350000>;
			regulator-always-on;
		};

		vcont {
			regulator-name = "lcd_vcont";
			regulator-min-microvolt = <1800000>;
			regulator-max-microvolt = <3300000>;
		};

		voref {
			regulator-name = "lcd_voref";
			regulator-min-microvolt = <4000000>;
			regulator-max-microvolt = <6000000>;
		};

		vpos {
			regulator-name = "lcd_vpos";
			regulator-min-microvolt = <4000000>;
			regulator-max-microvolt = <6000000>;
			regulator-boot-on;
		};

		vneg {
			regulator-name = "lcd_vneg";
			regulator-min-microvolt = <4000000>;
			regulator-max-microvolt = <6000000>;
			regulator-boot-on;
		};
	};
};

lm3632@11 {
	compatible = "ti,lm3632";
	reg = <0x11>;

	regulators {
		compatible = "ti,lm363x-regulator";

		/* GPIO1_16 for Vpos, GPIO1_28 is for Vneg */
		enable-gpios = <&gpio1 16 GPIO_ACTIVE_HIGH>,
				<&gpio1 28 GPIO_ACTIVE_HIGH>;

		vboost {
			regulator-name = "lcd_boost";
			regulator-min-microvolt = <4500000>;
			regulator-max-microvolt = <6400000>;
			regulator-always-on;
		};

		vpos {
			regulator-name = "lcd_vpos";
			regulator-min-microvolt = <4000000>;
			regulator-max-microvolt = <6000000>;
		};

		vneg {
			regulator-name = "lcd_vneg";
			regulator-min-microvolt = <4000000>;
			regulator-max-microvolt = <6000000>;
		};
	};
};

[1] ../regulator/regulator.txt
[2] ../mfd/ti-lmu.txt