On Mon, Feb 24, 2025 at 01:48:13PM +0200, Svyatoslav Ryhel wrote: > Add bindings for the LM3533 - a complete power source for backlight, keypad > and indicator LEDs in smartphone handsets. The high-voltage inductive boost > converter provides the power for two series LED strings display backlight > and keypad functions. > > Signed-off-by: Svyatoslav Ryhel <clamor95@xxxxxxxxx> > --- > .../devicetree/bindings/mfd/ti,lm3533.yaml | 231 ++++++++++++++++++ > 1 file changed, 231 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/ti,lm3533.yaml > > diff --git a/Documentation/devicetree/bindings/mfd/ti,lm3533.yaml b/Documentation/devicetree/bindings/mfd/ti,lm3533.yaml > new file mode 100644 > index 000000000000..c8ac6d4424aa > --- /dev/null > +++ b/Documentation/devicetree/bindings/mfd/ti,lm3533.yaml > @@ -0,0 +1,231 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/mfd/ti,lm3533.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: TI LM3533 Complete Lighting Power Solution > + > +description: > > + The LM3533 is a complete power source for backlight, keypad, and indicator LEDs > + in smartphone handsets. The high-voltage inductive boost converter provides the > + power for two series LED strings display backlight and keypad functions. > + > + https://www.ti.com/product/LM3533 > + > +maintainers: > + - Svyatoslav Ryhel <clamor95@xxxxxxxxx> > + > +properties: > + compatible: > + const: ti,lm3533 > + > + reg: > + maxItems: 1 > + > + enable-gpios: > + description: GPIO to use to enable/disable the backlight (HWEN pin). > + maxItems: 1 > + > + ti,boost-ovp-microvolt: > + description: > + Boost OVP select (16V, 24V, 32V, 40V) > + enum: [ 16000000, 24000000, 32000000, 40000000 ] > + default: 16000000 > + > + ti,boost-freq-hz: > + description: > + Boost frequency select (500KHz or 1MHz) > + enum: [ 500000, 1000000 ] > + default: 500000 > + > + light-sensor: > + type: object > + description: > + Properties for an illumination sensor. > + additionalProperties: false > + > + properties: > + compatible: > + const: ti,lm3533-als > + > + ti,resistor-value-ohm: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: > + Internal configuration resister value when ALS is in Analog Sensor > + mode and PWM mode is disabled. > + minimum: 1575 > + maximum: 200000 > + > + ti,pwm-mode: > + type: boolean > + description: > + Switch for mode in which ALS is running. If this propertly is set > + then ALS is running in PWM mode, internal resistor value is set to > + high-impedance (0) and resistor-value-ohm propertly is ignored. > + > + required: > + - compatible > + > +required: > + - compatible > + - reg > + - enable-gpios > + - light-sensor > + - backlight-0 > + - backlight-1 > + - led-0 > + - led-1 > + - led-2 > + - led-3 > + > +patternProperties: > + "^backlight-[01]$": > + type: object > + description: > + Properties for a backlight device. > + > + $ref: /schemas/leds/backlight/common.yaml# > + > + properties: > + compatible: > + const: ti,lm3533-backlight > + > + default-brightness: true > + > + ti,max-current-microamp: > + description: > + Maximum current in µA with a 800 µA step. > + enum: [ 5000, 5800, 6600, 7400, 8200, 9000, 9800, > + 10600, 11400, 12200, 13000, 13800, 14600, > + 15400, 16200, 17000, 17800, 18600, 19400, > + 20200, 21000, 21800, 22600, 23400, 24200, > + 25000, 25800, 26600, 27400, 28200, 29000, > + 29800 ] > + default: 5000 > + > + ti,pwm-config-mask: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: > + Control Bank PWM Configuration Register mask that allows to configure > + PWM input in Zones 0-4 > + BIT(0) - PWM Input is enabled > + BIT(1) - PWM Input is enabled in Zone 0 > + BIT(2) - PWM Input is enabled in Zone 1 > + BIT(3) - PWM Input is enabled in Zone 2 > + BIT(4) - PWM Input is enabled in Zone 3 > + BIT(5) - PWM Input is enabled in Zone 4 > + > + ti,linear-mapping-mode: > + description: > + Enable linear mapping mode. If disabled, then it will use exponential > + mapping mode in which the ramp up/down appears to have a more uniform > + transition to the human eye. > + type: boolean > + > + ti,hardware-controlled: > + description: > + Each backlight has its own voltage Control Bank (A and B) and there are > + two HVLED sinks which by default are linked to respective Bank. Setting > + this property will link both sinks to a Control Bank of backlight where > + property is defined. > + type: boolean > + > + required: > + - compatible > + > + additionalProperties: false > + > + "^led-[0-3]$": > + type: object > + description: > + Properties for a led device. > + > + $ref: /schemas/leds/common.yaml# > + > + properties: > + compatible: > + const: ti,lm3533-leds > + > + linux,default-trigger: true > + > + ti,max-current-microamp: > + description: > + Maximum current in µA with a 800 µA step. > + enum: [ 5000, 5800, 6600, 7400, 8200, 9000, 9800, > + 10600, 11400, 12200, 13000, 13800, 14600, > + 15400, 16200, 17000, 17800, 18600, 19400, > + 20200, 21000, 21800, 22600, 23400, 24200, > + 25000, 25800, 26600, 27400, 28200, 29000, > + 29800 ] > + default: 5000 > + > + ti,pwm-config-mask: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: > + Same descryption and function as for backlight. > + > + required: > + - compatible > + > + additionalProperties: false > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/gpio/gpio.h> > + > + i2c { > + #address-cells = <1>; > + #size-cells = <0>; > + > + led-controller@36 { > + compatible = "ti,lm3533"; > + reg = <0x36>; > + > + enable-gpios = <&gpio 110 GPIO_ACTIVE_HIGH>; > + > + ti,boost-ovp-microvolt = <24000000>; > + ti,boost-freq-hz = <500000>; > + > + backlight-0 { > + compatible = "ti,lm3533-backlight"; > + > + ti,max-current-microamp = <23400>; > + default-brightness = <113>; > + ti,hardware-controlled; > + }; > + > + backlight-1 { > + compatible = "ti,lm3533-backlight"; > + status = "disabled"; Examples should be enabled. Drop status. With those fixed, Reviewed-by: Rob Herring (Arm) <robh@xxxxxxxxxx> > + }; > + > + led-0 { > + compatible = "ti,lm3533-leds"; > + status = "disabled"; > + }; > + > + led-1 { > + compatible = "ti,lm3533-leds"; > + status = "disabled"; > + }; > + > + led-2 { > + compatible = "ti,lm3533-leds"; > + status = "disabled"; > + }; > + > + led-3 { > + compatible = "ti,lm3533-leds"; > + status = "disabled"; > + }; > + > + light-sensor { > + compatible = "ti,lm3533-als"; > + status = "disabled"; > + }; > + }; > + }; > +... > -- > 2.43.0 >
