tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/sound/fsl,qmc-audio.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: QMC audio
8
9maintainers:
10 - Herve Codina <herve.codina@bootlin.com>
11
12description: |
13 The QMC audio is an ASoC component which uses QMC (QUICC Multichannel
14 Controller) channels to transfer the audio data.
15 It provides as many DAI as the number of QMC channel used.
16
17allOf:
18 - $ref: dai-common.yaml#
19
20properties:
21 compatible:
22 const: fsl,qmc-audio
23
24 '#address-cells':
25 const: 1
26 '#size-cells':
27 const: 0
28 '#sound-dai-cells':
29 const: 1
30
31patternProperties:
32 '^dai@([0-9]|[1-5][0-9]|6[0-3])$':
33 description:
34 A DAI managed by this controller
35 type: object
36
37 properties:
38 reg:
39 minimum: 0
40 maximum: 63
41 description:
42 The DAI number
43
44 fsl,qmc-chan:
45 $ref: /schemas/types.yaml#/definitions/phandle-array
46 items:
47 - items:
48 - description: phandle to QMC node
49 - description: Channel number
50 description:
51 Should be a phandle/number pair. The phandle to QMC node and the QMC
52 channel to use for this DAI.
53
54 required:
55 - reg
56 - fsl,qmc-chan
57
58required:
59 - compatible
60 - '#address-cells'
61 - '#size-cells'
62 - '#sound-dai-cells'
63
64additionalProperties: false
65
66examples:
67 - |
68 audio_controller: audio-controller {
69 compatible = "fsl,qmc-audio";
70 #address-cells = <1>;
71 #size-cells = <0>;
72 #sound-dai-cells = <1>;
73 dai@16 {
74 reg = <16>;
75 fsl,qmc-chan = <&qmc 16>;
76 };
77 dai@17 {
78 reg = <17>;
79 fsl,qmc-chan = <&qmc 17>;
80 };
81 };
82
83 sound {
84 compatible = "simple-audio-card";
85 #address-cells = <1>;
86 #size-cells = <0>;
87 simple-audio-card,dai-link@0 {
88 reg = <0>;
89 format = "dsp_b";
90 cpu {
91 sound-dai = <&audio_controller 16>;
92 };
93 codec {
94 sound-dai = <&codec1>;
95 dai-tdm-slot-num = <4>;
96 dai-tdm-slot-width = <8>;
97 /* TS 3, 5, 7, 9 */
98 dai-tdm-slot-tx-mask = <0 0 0 1 0 1 0 1 0 1>;
99 dai-tdm-slot-rx-mask = <0 0 0 1 0 1 0 1 0 1>;
100 };
101 };
102 simple-audio-card,dai-link@1 {
103 reg = <1>;
104 format = "dsp_b";
105 cpu {
106 sound-dai = <&audio_controller 17>;
107 };
108 codec {
109 sound-dai = <&codec2>;
110 dai-tdm-slot-num = <4>;
111 dai-tdm-slot-width = <8>;
112 /* TS 2, 4, 6, 8 */
113 dai-tdm-slot-tx-mask = <0 0 1 0 1 0 1 0 1>;
114 dai-tdm-slot-rx-mask = <0 0 1 0 1 0 1 0 1>;
115 };
116 };
117 };