xref: /linux/Documentation/devicetree/bindings/leds/backlight/ti,tps65217.yaml (revision 7cc2726d4847c48844eb0ee16f973d449260f248)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/leds/backlight/ti,tps65217.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: TPS65217 family of regulators

maintainers:
  - Eduard Bostina <egbostina@gmail.com>

description:
  The TPS65217 chip contains a boost converter and current sinks which can be
  used to drive LEDs for use as backlights.

properties:
  compatible:
    const: ti,tps65217

  reg:
    maxItems: 1
    description: I2C slave address

  interrupts:
    maxItems: 1

  interrupt-controller: true

  "#interrupt-cells":
    const: 1

  ti,pmic-shutdown-controller:
    type: boolean
    description:
      Set the PMIC to shutdown on PWR_EN toggle.

  backlight:
    type: object
    additionalProperties: false
    description:
      Node for specifying WLED1 and WLED2 lines in TPS65217.

    properties:
      isel:
        $ref: /schemas/types.yaml#/definitions/uint32
        enum: [1, 2]
        description: |
          Selection bit. Valid values:
            1 - ISEL1 (low-level)
            2 - ISEL2 (high-level)

      fdim:
        $ref: /schemas/types.yaml#/definitions/uint32
        enum: [100, 200, 500, 1000]
        description:
          PWM dimming frequency in Hz.

      default-brightness:
        $ref: /schemas/types.yaml#/definitions/uint32
        minimum: 0
        maximum: 100

    required:
      - isel
      - fdim
      - default-brightness

  regulators:
    type: object
    additionalProperties: false
    description:
      List of child nodes that specify the regulator initialization data.
      Not all regulators for the given device need to be present.

    patternProperties:
      "^(dcdc[1-3]|ldo[1-4])$":
        type: object
        $ref: /schemas/regulator/regulator.yaml#
        unevaluatedProperties: false

  charger:
    $ref: /schemas/power/supply/tps65217-charger.yaml#
    unevaluatedProperties: false

  pwrbutton:
    $ref: /schemas/input/ti,tps65217-pwrbutton.yaml#
    unevaluatedProperties: false

required:
  - compatible
  - reg

additionalProperties: false

examples:
  - |
    i2c {
        #address-cells = <1>;
        #size-cells = <0>;

        pmic@24 {
            compatible = "ti,tps65217";
            reg = <0x24>;
            interrupt-controller;
            #interrupt-cells = <1>;
            ti,pmic-shutdown-controller;

            backlight {
                isel = <1>;   /* 1 - ISET1, 2 ISET2 */
                fdim = <100>; /* TPS65217_BL_FDIM_100HZ */
                default-brightness = <50>;
            };

            charger {
                compatible = "ti,tps65217-charger";
                interrupts = <0>, <1>;
                interrupt-names = "USB", "AC";
            };

            pwrbutton {
                compatible = "ti,tps65217-pwrbutton";
                interrupts = <2>;
            };

            regulators {
                dcdc1 {
                    regulator-name = "vdds_dpr";
                    regulator-always-on;
                };

                dcdc2 {
                    regulator-name = "vdd_mpu";
                    regulator-min-microvolt = <925000>;
                    regulator-max-microvolt = <1351500>;
                    regulator-boot-on;
                    regulator-always-on;
                };

                dcdc3 {
                    regulator-name = "vdd_core";
                    regulator-min-microvolt = <925000>;
                    regulator-max-microvolt = <1150000>;
                    regulator-boot-on;
                    regulator-always-on;
                };

                ldo1 {
                    regulator-name = "vio,vrtc,vdds";
                    regulator-always-on;
                };

                ldo2 {
                    regulator-name = "vdd_3v3aux";
                    regulator-always-on;
                };

                ldo3 {
                    regulator-name = "vdd_1v8";
                    regulator-min-microvolt = <1800000>;
                    regulator-max-microvolt = <1800000>;
                    regulator-always-on;
                };

                ldo4 {
                    regulator-name = "vdd_3v3a";
                    regulator-always-on;
                };
            };
        };
    };