cirrus,cs4234.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/sound/cirrus,cs4234.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Cirrus Logic cs4234 audio CODEC
    8 
    9 maintainers:
   10   - patches@opensource.cirrus.com
   11 
   12 description:
   13   The CS4234 is a highly versatile CODEC that combines 4 channels of
   14   high performance analog to digital conversion, 4 channels of high
   15   performance digital to analog conversion for audio, and 1 channel of
   16   digital to analog conversion to provide a nondelayed audio reference
   17   signal to an external Class H tracking power supply. If not used to
   18   drive a tracking power supply, the 5th DAC can instead be used as a
   19   standard audio grade DAC, with performance specifications identical
   20   to that of the 4 DACs in the audio path. Additionally, the CS4234
   21   includes tunable group delay for each of the 4 audio DAC paths to
   22   provide lead time for the external switch-mode power supply, and a
   23   nondelayed path into the DAC outputs for input signals requiring a
   24   low-latency path to the outputs.
   25 
   26 properties:
   27   compatible:
   28     enum:
   29       - cirrus,cs4234
   30 
   31   reg:
   32     description:
   33       The 7-bit I2C address depends on the state of the ADx pins, in
   34       binary given by [0 0 1 0 AD2 AD1 AD0 0].
   35     items:
   36       minimum: 0x10
   37       maximum: 0x17
   38 
   39   VA-supply:
   40     description:
   41       Analogue power supply.
   42 
   43   VL-supply:
   44     description:
   45       Interface power supply.
   46 
   47   reset-gpios:
   48     maxItems: 1
   49 
   50 required:
   51   - compatible
   52   - reg
   53   - VA-supply
   54   - VL-supply
   55 
   56 additionalProperties: false
   57 
   58 examples:
   59   - |
   60     i2c@e0004000 {
   61         #address-cells = <1>;
   62         #size-cells = <0>;
   63         reg = <0xe0004000 0x1000>;
   64 
   65         cs4234: codec@11 {
   66             compatible = "cirrus,cs4234";
   67             reg = <0x11>;
   68 
   69             VA-supply = <&vdd3v3>;
   70             VL-supply = <&vdd3v3>;
   71 
   72             reset-gpios = <&gpio 0>;
   73         };
   74     };

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sys/contrib/device-tree/Bindings/sound/cirrus,cs4234.yaml