Documentation/devicetree/bindings/sound/rockchip,rk3328-codec.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/rockchip,rk3328-codec.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Rockchip rk3328 internal codec
   8
   9 maintainers:
  10   - Heiko Stuebner <heiko@sntech.de>
  11
  12 properties:
  13   compatible:
  14     const: rockchip,rk3328-codec
  15
  16   reg:
  17     maxItems: 1
  18
  19   clocks:
  20     items:
  21       - description: clock for audio codec
  22       - description: clock for I2S master clock
  23
  24   clock-names:
  25     items:
  26       - const: pclk
  27       - const: mclk
  28
  29   rockchip,grf:
  30     $ref: /schemas/types.yaml#/definitions/phandle
  31     description:
  32       The phandle of the syscon node for the GRF register.
  33
  34   spk-depop-time-ms:
  35     default: 200
  36     description:
  37       Speaker depop time in msec.
  38
  39   mute-gpios:
  40     maxItems: 1
  41     description:
  42       GPIO specifier for external line driver control (typically the
  43       dedicated GPIO_MUTE pin)
  44
  45   "#sound-dai-cells":
  46     const: 0
  47
  48 required:
  49   - compatible
  50   - reg
  51   - clocks
  52   - clock-names
  53   - rockchip,grf
  54   - "#sound-dai-cells"
  55
  56 examples:
  57   - |
  58     #include <dt-bindings/gpio/gpio.h>
  59     #include <dt-bindings/clock/rk3328-cru.h>
  60     codec: codec@ff410000 {
  61       compatible = "rockchip,rk3328-codec";
  62       reg = <0xff410000 0x1000>;
  63       clocks = <&cru PCLK_ACODECPHY>, <&cru SCLK_I2S1>;
  64       clock-names = "pclk", "mclk";
  65       rockchip,grf = <&grf>;
  66       mute-gpios = <&grf_gpio 0 GPIO_ACTIVE_LOW>;
  67       spk-depop-time-ms = <100>;
  68       #sound-dai-cells = <0>;
  69     };