Documentation/devicetree/bindings/regulator/richtek,rt5739.yaml

   1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/regulator/richtek,rt5739.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Richtek RT5739 Step-Down Buck Converter
   8
   9 maintainers:
  10   - ChiYuan Huang <cy_huang@richtek.com>
  11
  12 description: |
  13   The RT5739 is a step-down switching buck converter that can deliver the
  14   programmable output voltage from 300mV to 1300mV with wide input voltage
  15   supply of 2.5V to 5.5V. It can provide up to 3.5A continuous current
  16   capability at over 80% high efficiency.
  17
  18 allOf:
  19   - $ref: regulator.yaml#
  20
  21 properties:
  22   compatible:
  23     enum:
  24       - richtek,rt5733
  25       - richtek,rt5739
  26
  27   reg:
  28     maxItems: 1
  29
  30   enable-gpios:
  31     maxItems: 1
  32
  33   richtek,vsel-active-high:
  34     description: |
  35       If property is present, use the 'VSEL1' register group for buck control.
  36       Else, use the 'VSEL0' register group. This depends on external hardware
  37       'VSEL' pin connection.
  38     type: boolean
  39
  40   regulator-allowed-modes:
  41     description: |
  42       buck allowed operating mode
  43         0: Auto PFM/PWM mode
  44         1: Forced PWM mode
  45     items:
  46       enum: [0, 1]
  47
  48 required:
  49   - compatible
  50   - reg
  51
  52 unevaluatedProperties: false
  53
  54 examples:
  55   - |
  56     #include <dt-bindings/gpio/gpio.h>
  57
  58     i2c {
  59       #address-cells = <1>;
  60       #size-cells = <0>;
  61
  62       regulator@50 {
  63         compatible = "richtek,rt5739";
  64         reg = <0x50>;
  65         enable-gpios = <&gpio26 1 GPIO_ACTIVE_HIGH>;
  66         richtek,vsel-active-high;
  67         regulator-name = "richtek,rt5739-buck";
  68         regulator-min-microvolt = <300000>;
  69         regulator-max-microvolt = <1300000>;
  70         regulator-allowed-modes = <0 1>;
  71         regulator-boot-on;
  72       };
  73     };