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Diffstat (limited to 'Documentation/devicetree/bindings/mfd/ti-lmu.txt')
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1 files changed, 243 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mfd/ti-lmu.txt b/Documentation/devicetree/bindings/mfd/ti-lmu.txt new file mode 100644 index 000000000000..c885cf89b8ce --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/ti-lmu.txt @@ -0,0 +1,243 @@ +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"; + }; +}; |