maxim,max8952.yaml

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    1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/regulator/maxim,max8952.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Maxim MAX8952 voltage regulator
    8 
    9 maintainers:
   10   - Krzysztof Kozlowski <krzk@kernel.org>
   11 
   12 allOf:
   13   - $ref: regulator.yaml#
   14 
   15 properties:
   16   compatible:
   17     const: maxim,max8952
   18 
   19   max8952,default-mode:
   20     $ref: /schemas/types.yaml#/definitions/uint32
   21     enum: [0, 1, 2, 3]
   22     description: |
   23       index of default DVS voltage
   24 
   25   max8952,dvs-mode-microvolt:
   26     minItems: 4
   27     maxItems: 4
   28     items:
   29       minimum: 770000
   30       maximum: 1400000
   31     description: |
   32       Array of 4 integer values defining DVS voltages in microvolts. All values
   33       must be from range <770000, 1400000>.
   34 
   35   max8952,en-gpio:
   36     maxItems: 1
   37     description: |
   38       GPIO used to control enable status of regulator
   39 
   40   max8952,ramp-speed:
   41     $ref: /schemas/types.yaml#/definitions/uint32
   42     enum: [0, 1, 2, 3, 4, 5, 6, 7]
   43     default: 0
   44     description: |
   45       Voltage ramp speed, values map to:
   46        - 0: 32mV/us
   47        - 1: 16mV/us
   48        - 2: 8mV/us
   49        - 3: 4mV/us
   50        - 4: 2mV/us
   51        - 5: 1mV/us
   52        - 6: 0.5mV/us
   53        - 7: 0.25mV/us
   54       Defaults to 32mV/us if not specified.
   55 
   56   max8952,sync-freq:
   57     $ref: /schemas/types.yaml#/definitions/uint32
   58     enum: [0, 1, 2]
   59     default: 0
   60     description: |
   61       Sync frequency, values map to:
   62        - 0: 26 MHz
   63        - 1: 13 MHz
   64        - 2: 19.2 MHz
   65       Defaults to 26 MHz if not specified.
   66 
   67   max8952,vid-gpios:
   68     minItems: 2
   69     maxItems: 2
   70     description: |
   71       Array of two GPIO pins used for DVS voltage selection
   72 
   73   reg:
   74     maxItems: 1
   75 
   76 required:
   77   - compatible
   78   - max8952,dvs-mode-microvolt
   79   - reg
   80 
   81 unevaluatedProperties: false
   82 
   83 examples:
   84   - |
   85     #include <dt-bindings/gpio/gpio.h>
   86 
   87     i2c {
   88         #address-cells = <1>;
   89         #size-cells = <0>;
   90 
   91         pmic@60 {
   92             compatible = "maxim,max8952";
   93             reg = <0x60>;
   94 
   95             max8952,vid-gpios = <&gpx0 3 GPIO_ACTIVE_HIGH>,
   96                                 <&gpx0 4 GPIO_ACTIVE_HIGH>;
   97             max8952,default-mode = <0>;
   98             max8952,dvs-mode-microvolt = <1250000>, <1200000>,
   99                                          <1050000>, <950000>;
  100             max8952,sync-freq = <0>;
  101             max8952,ramp-speed = <0>;
  102 
  103             regulator-name = "VARM_1.2V_C210";
  104             regulator-min-microvolt = <770000>;
  105             regulator-max-microvolt = <1400000>;
  106             regulator-always-on;
  107             regulator-boot-on;
  108         };
  109     };

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sys/contrib/device-tree/Bindings/regulator/maxim,max8952.yaml