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 allOf:
  12   - $ref: dai-common.yaml#
  13
  14
  15 properties:
  16   compatible:
  17     const: rockchip,rk3328-codec
  18
  19   reg:
  20     maxItems: 1
  21
  22   clocks:
  23     items:
  24       - description: clock for audio codec
  25       - description: clock for I2S master clock
  26
  27   clock-names:
  28     items:
  29       - const: pclk
  30       - const: mclk
  31
  32   rockchip,grf:
  33     $ref: /schemas/types.yaml#/definitions/phandle
  34     description:
  35       The phandle of the syscon node for the GRF register.
  36
  37   spk-depop-time-ms:
  38     default: 200
  39     description:
  40       Speaker depop time in msec.
  41
  42   mute-gpios:
  43     maxItems: 1
  44     description:
  45       GPIO specifier for external line driver control (typically the
  46       dedicated GPIO_MUTE pin)
  47
  48   "#sound-dai-cells":
  49     const: 0
  50
  51 required:
  52   - compatible
  53   - reg
  54   - clocks
  55   - clock-names
  56   - rockchip,grf
  57   - "#sound-dai-cells"
  58
  59 unevaluatedProperties: false
  60
  61 examples:
  62   - |
  63     #include <dt-bindings/gpio/gpio.h>
  64     #include <dt-bindings/clock/rk3328-cru.h>
  65     codec: codec@ff410000 {
  66       compatible = "rockchip,rk3328-codec";
  67       reg = <0xff410000 0x1000>;
  68       clocks = <&cru PCLK_ACODECPHY>, <&cru SCLK_I2S1>;
  69       clock-names = "pclk", "mclk";
  70       rockchip,grf = <&grf>;
  71       mute-gpios = <&grf_gpio 0 GPIO_ACTIVE_LOW>;
  72       spk-depop-time-ms = <100>;
  73       #sound-dai-cells = <0>;
  74     };