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Commit 287cce71 authored by Milo Kim's avatar Milo Kim Committed by Lee Jones
Browse files

dt-bindings: mfd: Add TI LMU device binding information 



This patch describes overall binding for TI LMU MFD devices.

Signed-off-by: default avatarMilo Kim <milo.kim@ti.com>
Acked-by: default avatarRob Herring <robh+dt@kernel.org>
Acked-by: default avatarTony Lindgren <tony@atomide.com>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent c0369698

Documentation/devicetree/bindings/mfd/ti-lmu.txt

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TI LMU (Lighting Management Unit) device tree bindings



TI LMU driver supports lighting devices below.



   Name                  Child nodes

  ------      ---------------------------------

  LM3532       Backlight

  LM3631       Backlight and regulator

  LM3632       Backlight and regulator

  LM3633       Backlight, LED and fault monitor

  LM3695       Backlight

  LM3697       Backlight and fault monitor



Required properties:

  - compatible: Should be one of:

                "ti,lm3532"

                "ti,lm3631"

                "ti,lm3632"

                "ti,lm3633"

                "ti,lm3695"

                "ti,lm3697"

  - reg: I2C slave address.

         0x11 for LM3632

         0x29 for LM3631

         0x36 for LM3633, LM3697

         0x38 for LM3532

         0x63 for LM3695



Optional property:

  - enable-gpios: A GPIO specifier for hardware enable pin.



Required node:

  - backlight: All LMU devices have backlight child nodes.

               For the properties, please refer to [1].



Optional nodes:

  - fault-monitor: Hardware fault monitoring driver for LM3633 and LM3697.

    Required properties:

      - compatible: Should be one of:

                    "ti,lm3633-fault-monitor"

                    "ti,lm3697-fault-monitor"

  - leds: LED properties for LM3633. Please refer to [2].

  - regulators: Regulator properties for LM3631 and LM3632.

                Please refer to [3].



[1] ../leds/backlight/ti-lmu-backlight.txt

[2] ../leds/leds-lm3633.txt

[3] ../regulator/lm363x-regulator.txt



lm3532@38 {

	compatible = "ti,lm3532";

	reg = <0x38>;



	enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>;



	backlight {

		compatible = "ti,lm3532-backlight";



		lcd {

			led-sources = <0 1 2>;

			ramp-up-msec = <30>;

			ramp-down-msec = <0>;

		};

	};

};



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;

		};

	};



	backlight {

		compatible = "ti,lm3631-backlight";



		lcd_bl {

			led-sources = <0 1>;

			ramp-up-msec = <300>;

		};

	};

};



lm3632@11 {

	compatible = "ti,lm3632";

	reg = <0x11>;



	enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>; /* PC2 */



	regulators {

		compatible = "ti,lm363x-regulator";



		ti,lcm-en1-gpio = <&pioC 0 GPIO_ACTIVE_HIGH>; /* PC0 */

		ti,lcm-en2-gpio = <&pioC 1 GPIO_ACTIVE_HIGH>; /* PC1 */



		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>;

		};

	};



	backlight {

		compatible = "ti,lm3632-backlight";



		pwms = <&pwm0 0 10000 0>; /* pwm number, period, polarity */

		pwm-names = "lmu-backlight";



		lcd {

			led-sources = <0 1>;

			pwm-period = <10000>;

		};

	};

};



lm3633@36 {

	compatible = "ti,lm3633";

	reg = <0x36>;



	enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>;



	backlight {

		compatible = "ti,lm3633-backlight";



		main {

			label = "main_lcd";

			led-sources = <1 2>;

			ramp-up-msec = <500>;

			ramp-down-msec = <500>;

		};



		front {

			label = "front_lcd";

			led-sources = <0>;

			ramp-up-msec = <1000>;

			ramp-down-msec = <0>;

		};

	};



	leds {

		compatible = "ti,lm3633-leds";



		chan1 {

			label = "status";

			led-sources = <1>;

			led-max-microamp = <6000>;

		};



		chan345 {

			label = "rgb";

			led-sources = <3 4 5>;

			led-max-microamp = <10000>;

		};

	};



	fault-monitor {

		compatible = "ti,lm3633-fault-monitor";

	};

};



lm3695@63 {

	compatible = "ti,lm3695";

	reg = <0x63>;



	enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>;



	backlight {

		compatible = "ti,lm3695-backlight";



		lcd {

			label = "bl";

			led-sources = <0 1>;

		};

	};

};



lm3697@36 {

	compatible = "ti,lm3697";

	reg = <0x36>;



	enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>;



	backlight {

		compatible = "ti,lm3697-backlight";



		lcd {

			led-sources = <0 1 2>;

			ramp-up-msec = <200>;

			ramp-down-msec = <200>;

		};

	};



	fault-monitor {

		compatible = "ti,lm3697-fault-monitor";

	};

};