Bindings/sound/renesas,idt821034.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/sound/renesas,idt821034.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Renesas IDT821034 codec device
   8
   9 maintainers:
  10   - Herve Codina <herve.codina@bootlin.com>
  11
  12 description: |
  13   The IDT821034 codec is a four channel PCM codec with onchip filters and
  14   programmable gain setting.
  15
  16   The time-slots used by the codec must be set and so, the properties
  17   'dai-tdm-slot-num', 'dai-tdm-slot-width', 'dai-tdm-slot-tx-mask' and
  18   'dai-tdm-slot-rx-mask' must be present in the ALSA sound card node for
  19   sub-nodes that involve the codec. The codec uses one 8bit time-slot per
  20   channel.
  21   'dai-tdm-tdm-slot-with' must be set to 8.
  22
  23   The IDT821034 codec also supports 5 gpios (SLIC signals) per channel.
  24
  25 allOf:
  26   - $ref: /schemas/spi/spi-peripheral-props.yaml#
  27   - $ref: dai-common.yaml#
  28
  29 properties:
  30   compatible:
  31     const: renesas,idt821034
  32
  33   reg:
  34     description:
  35       SPI device address.
  36     maxItems: 1
  37
  38   spi-max-frequency:
  39     maximum: 8192000
  40
  41   spi-cpha: true
  42
  43   '#sound-dai-cells':
  44     const: 0
  45
  46   '#gpio-cells':
  47     const: 2
  48
  49   gpio-controller: true
  50
  51 required:
  52   - compatible
  53   - reg
  54   - spi-cpha
  55   - '#sound-dai-cells'
  56   - gpio-controller
  57   - '#gpio-cells'
  58
  59 unevaluatedProperties: false
  60
  61 examples:
  62   - |
  63     spi {
  64         #address-cells = <1>;
  65         #size-cells = <0>;
  66         audio-codec@0 {
  67             compatible = "renesas,idt821034";
  68             reg = <0>;
  69             spi-max-frequency = <8192000>;
  70             spi-cpha;
  71             #sound-dai-cells = <0>;
  72             gpio-controller;
  73             #gpio-cells = <2>;
  74         };
  75     };