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 };
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