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dt-bindings: mfd: Add TI LMU device binding information
This patch describes overall binding for TI LMU MFD devices. Signed-off-by: Milo Kim <milo.kim@ti.com> Acked-by: Rob Herring <robh+dt@kernel.org> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Milo Kim
Lee Jones
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c0369698e6
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287cce719d
243
Documentation/devicetree/bindings/mfd/ti-lmu.txt
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243
Documentation/devicetree/bindings/mfd/ti-lmu.txt
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TI LMU (Lighting Management Unit) device tree bindings
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TI LMU driver supports lighting devices below.
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Name Child nodes
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------ ---------------------------------
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LM3532 Backlight
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LM3631 Backlight and regulator
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LM3632 Backlight and regulator
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LM3633 Backlight, LED and fault monitor
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LM3695 Backlight
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LM3697 Backlight and fault monitor
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Required properties:
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- compatible: Should be one of:
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"ti,lm3532"
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"ti,lm3631"
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"ti,lm3632"
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"ti,lm3633"
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"ti,lm3695"
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"ti,lm3697"
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- reg: I2C slave address.
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0x11 for LM3632
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0x29 for LM3631
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0x36 for LM3633, LM3697
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0x38 for LM3532
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0x63 for LM3695
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Optional property:
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- enable-gpios: A GPIO specifier for hardware enable pin.
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Required node:
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- backlight: All LMU devices have backlight child nodes.
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For the properties, please refer to [1].
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Optional nodes:
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- fault-monitor: Hardware fault monitoring driver for LM3633 and LM3697.
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Required properties:
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- compatible: Should be one of:
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"ti,lm3633-fault-monitor"
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"ti,lm3697-fault-monitor"
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- leds: LED properties for LM3633. Please refer to [2].
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- regulators: Regulator properties for LM3631 and LM3632.
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Please refer to [3].
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[1] ../leds/backlight/ti-lmu-backlight.txt
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[2] ../leds/leds-lm3633.txt
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[3] ../regulator/lm363x-regulator.txt
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lm3532@38 {
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compatible = "ti,lm3532";
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reg = <0x38>;
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enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>;
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backlight {
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compatible = "ti,lm3532-backlight";
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lcd {
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led-sources = <0 1 2>;
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ramp-up-msec = <30>;
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ramp-down-msec = <0>;
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};
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};
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};
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lm3631@29 {
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compatible = "ti,lm3631";
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reg = <0x29>;
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regulators {
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compatible = "ti,lm363x-regulator";
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vboost {
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regulator-name = "lcd_boost";
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regulator-min-microvolt = <4500000>;
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regulator-max-microvolt = <6350000>;
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regulator-always-on;
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};
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vcont {
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regulator-name = "lcd_vcont";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <3300000>;
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};
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voref {
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regulator-name = "lcd_voref";
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regulator-min-microvolt = <4000000>;
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regulator-max-microvolt = <6000000>;
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};
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vpos {
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regulator-name = "lcd_vpos";
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regulator-min-microvolt = <4000000>;
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regulator-max-microvolt = <6000000>;
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regulator-boot-on;
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};
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vneg {
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regulator-name = "lcd_vneg";
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regulator-min-microvolt = <4000000>;
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regulator-max-microvolt = <6000000>;
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regulator-boot-on;
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};
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};
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backlight {
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compatible = "ti,lm3631-backlight";
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lcd_bl {
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led-sources = <0 1>;
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ramp-up-msec = <300>;
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};
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};
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};
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lm3632@11 {
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compatible = "ti,lm3632";
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reg = <0x11>;
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enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>; /* PC2 */
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regulators {
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compatible = "ti,lm363x-regulator";
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ti,lcm-en1-gpio = <&pioC 0 GPIO_ACTIVE_HIGH>; /* PC0 */
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ti,lcm-en2-gpio = <&pioC 1 GPIO_ACTIVE_HIGH>; /* PC1 */
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vboost {
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regulator-name = "lcd_boost";
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regulator-min-microvolt = <4500000>;
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regulator-max-microvolt = <6400000>;
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regulator-always-on;
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};
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vpos {
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regulator-name = "lcd_vpos";
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regulator-min-microvolt = <4000000>;
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regulator-max-microvolt = <6000000>;
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};
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vneg {
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regulator-name = "lcd_vneg";
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regulator-min-microvolt = <4000000>;
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regulator-max-microvolt = <6000000>;
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};
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};
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backlight {
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compatible = "ti,lm3632-backlight";
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pwms = <&pwm0 0 10000 0>; /* pwm number, period, polarity */
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pwm-names = "lmu-backlight";
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lcd {
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led-sources = <0 1>;
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pwm-period = <10000>;
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};
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};
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};
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lm3633@36 {
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compatible = "ti,lm3633";
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reg = <0x36>;
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enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>;
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backlight {
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compatible = "ti,lm3633-backlight";
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main {
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label = "main_lcd";
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led-sources = <1 2>;
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ramp-up-msec = <500>;
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ramp-down-msec = <500>;
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};
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front {
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label = "front_lcd";
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led-sources = <0>;
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ramp-up-msec = <1000>;
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ramp-down-msec = <0>;
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};
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};
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leds {
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compatible = "ti,lm3633-leds";
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chan1 {
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label = "status";
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led-sources = <1>;
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led-max-microamp = <6000>;
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};
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chan345 {
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label = "rgb";
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led-sources = <3 4 5>;
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led-max-microamp = <10000>;
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};
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};
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fault-monitor {
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compatible = "ti,lm3633-fault-monitor";
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};
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};
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lm3695@63 {
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compatible = "ti,lm3695";
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reg = <0x63>;
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enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>;
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backlight {
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compatible = "ti,lm3695-backlight";
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lcd {
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label = "bl";
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led-sources = <0 1>;
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};
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};
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};
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lm3697@36 {
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compatible = "ti,lm3697";
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reg = <0x36>;
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enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>;
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backlight {
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compatible = "ti,lm3697-backlight";
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lcd {
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led-sources = <0 1 2>;
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ramp-up-msec = <200>;
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ramp-down-msec = <200>;
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};
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};
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fault-monitor {
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compatible = "ti,lm3697-fault-monitor";
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};
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};
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