cirrus,cs35l41.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/sound/cirrus,cs35l41.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Cirrus Logic CS35L41 Speaker Amplifier
    8 
    9 maintainers:
   10   - david.rhodes@cirrus.com
   11 
   12 description: |
   13   CS35L41 is a boosted mono Class D amplifier with DSP
   14   speaker protection and equalization
   15 
   16 properties:
   17   compatible:
   18     enum:
   19       - cirrus,cs35l40
   20       - cirrus,cs35l41
   21 
   22   reg:
   23     maxItems: 1
   24 
   25   '#sound-dai-cells':
   26     description:
   27       The first cell indicating the audio interface.
   28     const: 1
   29 
   30   reset-gpios:
   31     maxItems: 1
   32 
   33   VA-supply:
   34     description: voltage regulator phandle for the VA supply
   35 
   36   VP-supply:
   37     description: voltage regulator phandle for the VP supply
   38 
   39   cirrus,boost-peak-milliamp:
   40     description:
   41       Boost-converter peak current limit in mA.
   42       Configures the peak current by monitoring the current through the boost FET.
   43       Range starts at 1600 mA and goes to a maximum of 4500 mA with increments
   44       of 50 mA. See section 4.3.6 of the datasheet for details.
   45     $ref: "/schemas/types.yaml#/definitions/uint32"
   46     minimum: 1600
   47     maximum: 4500
   48     default: 4500
   49 
   50   cirrus,boost-ind-nanohenry:
   51     description:
   52       Boost inductor value, expressed in nH. Valid
   53       values include 1000, 1200, 1500 and 2200.
   54     $ref: "/schemas/types.yaml#/definitions/uint32"
   55     minimum: 1000
   56     maximum: 2200
   57 
   58   cirrus,boost-cap-microfarad:
   59     description:
   60       Total equivalent boost capacitance on the VBST
   61       and VAMP pins, derated at 11 volts DC. The value must be rounded to the
   62       nearest integer and expressed in uF.
   63     $ref: "/schemas/types.yaml#/definitions/uint32"
   64 
   65   cirrus,asp-sdout-hiz:
   66     description:
   67       Audio serial port SDOUT Hi-Z control. Sets the Hi-Z
   68       configuration for SDOUT pin of amplifier.
   69       0 = Logic 0 during unused slots, and while all transmit channels disabled
   70       1 = Hi-Z during unused slots but logic 0 while all transmit channels disabled
   71       2 = (Default) Logic 0 during unused slots, but Hi-Z while all transmit channels disabled
   72       3 = Hi-Z during unused slots and while all transmit channels disabled
   73     $ref: "/schemas/types.yaml#/definitions/uint32"
   74     minimum: 0
   75     maximum: 3
   76     default: 2
   77 
   78   cirrus,boost-type:
   79     description:
   80       Configures the type of Boost being used.
   81       Internal boost requires boost-peak-milliamp, boost-ind-nanohenry and
   82       boost-cap-microfarad.
   83       External Boost must have GPIO1 as GPIO output. GPIO1 will be set high to
   84       enable boost voltage.
   85       0 = Internal Boost
   86       1 = External Boost
   87     $ref: "/schemas/types.yaml#/definitions/uint32"
   88     minimum: 0
   89     maximum: 1
   90 
   91   cirrus,gpio1-polarity-invert:
   92     description:
   93       Boolean which specifies whether the GPIO1
   94       level is inverted. If this property is not present the level is not inverted.
   95     type: boolean
   96 
   97   cirrus,gpio1-output-enable:
   98     description:
   99       Boolean which specifies whether the GPIO1 pin
  100       is configured as an output. If this property is not present the
  101       pin will be configured as an input.
  102     type: boolean
  103 
  104   cirrus,gpio1-src-select:
  105     description:
  106       Configures the function of the GPIO1 pin.
  107       Note that the options are different from the GPIO2 pin
  108       0 = High Impedance (Default)
  109       1 = GPIO
  110       2 = Sync
  111       3 = MCLK input
  112     $ref: "/schemas/types.yaml#/definitions/uint32"
  113     minimum: 0
  114     maximum: 3
  115 
  116   cirrus,gpio2-polarity-invert:
  117     description:
  118       Boolean which specifies whether the GPIO2
  119       level is inverted. If this property is not present the level is not inverted.
  120     type: boolean
  121 
  122   cirrus,gpio2-output-enable:
  123     description:
  124       Boolean which specifies whether the GPIO2 pin
  125       is configured as an output. If this property is not present the
  126       pin will be configured as an input.
  127     type: boolean
  128 
  129   cirrus,gpio2-src-select:
  130     description:
  131       Configures the function of the GPIO2 pin.
  132       Note that the options are different from the GPIO1 pin.
  133       0 = High Impedance (Default)
  134       1 = GPIO
  135       2 = Open Drain INTB
  136       3 = MCLK input
  137       4 = Push-pull INTB (active low)
  138       5 = Push-pull INT (active high)
  139     $ref: "/schemas/types.yaml#/definitions/uint32"
  140     minimum: 0
  141     maximum: 5
  142 
  143 required:
  144   - compatible
  145   - reg
  146   - "#sound-dai-cells"
  147 
  148 allOf:
  149   - if:
  150       properties:
  151         cirrus,boost-type:
  152           const: 0
  153     then:
  154       required:
  155         - cirrus,boost-peak-milliamp
  156         - cirrus,boost-ind-nanohenry
  157         - cirrus,boost-cap-microfarad
  158     else:
  159       if:
  160         properties:
  161           cirrus,boost-type:
  162             const: 1
  163       then:
  164         required:
  165           - cirrus,gpio1-output-enable
  166           - cirrus,gpio1-src-select
  167         properties:
  168           cirrus,boost-peak-milliamp: false
  169           cirrus,boost-ind-nanohenry: false
  170           cirrus,boost-cap-microfarad: false
  171           cirrus,gpio1-src-select:
  172             enum: [1]
  173 
  174 additionalProperties: false
  175 
  176 examples:
  177   - |
  178     spi {
  179         #address-cells = <1>;
  180         #size-cells = <0>;
  181 
  182         cs35l41: cs35l41@2 {
  183           #sound-dai-cells = <1>;
  184           compatible = "cirrus,cs35l41";
  185           reg = <2>;
  186           VA-supply = <&dummy_vreg>;
  187           VP-supply = <&dummy_vreg>;
  188           reset-gpios = <&gpio 110 0>;
  189 
  190           cirrus,boost-type = <0>;
  191           cirrus,boost-peak-milliamp = <4500>;
  192           cirrus,boost-ind-nanohenry = <1000>;
  193           cirrus,boost-cap-microfarad = <15>;
  194         };
  195     };

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sys/contrib/device-tree/Bindings/sound/cirrus,cs35l41.yaml