1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Device Tree for ULCB + Simple Audio Card
4 *
5 * Copyright (C) 2022 Renesas Electronics Corp.
6 */
7
8 /*
9 * (A) CPU0 <----> ak4613
10 * (B) CPU1 ----> HDMI
11 *
12 * (A) aplay -D plughw:0,0 xxx.wav
13 * (B) aplay -D plughw:0,1 xxx.wav
14 *
15 * (A) arecord -D plughw:0,0 xxx.wav
16 */
17
18 / {
19 sound_card: sound {
20 compatible = "simple-audio-card";
21 label = "snd-ulcb";
22
23 #address-cells = <1>;
24 #size-cells = <0>;
25
26 /*
27 * (A) CPU0 <-> ak4613
28 */
29 simple-audio-card,dai-link@0 {
30 reg = <0>;
31 cpu {
32 bitclock-master;
33 frame-master;
34 sound-dai = <&rcar_sound 0>;
35 };
36 codec {
37 sound-dai = <&ak4613>;
38 };
39 };
40 /*
41 * (B) CPU1 -> HDMI
42 */
43 simple-audio-card,dai-link@1 {
44 reg = <1>;
45 cpu {
46 bitclock-master;
47 frame-master;
48 sound-dai = <&rcar_sound 1>;
49 };
50 codec {
51 sound-dai = <&hdmi0>;
52 };
53 };
54 };
55 };
56
57 &ak4613 {
58 /*
59 * (A) CPU0 <-> ak4613
60 */
61 #sound-dai-cells = <0>;
62 };
63
64 &hdmi0 {
65 /*
66 * (B) CPU1 -> HDMI
67 */
68 #sound-dai-cells = <0>;
69 };
70
71 &rcar_sound {
72 #address-cells = <1>;
73 #size-cells = <0>;
74 #sound-dai-cells = <1>;
75
76 rcar_sound,dai@0 {
77 reg = <0>;
78
79 /*
80 * (A) CPU0 <-> ak4613
81 */
82 dai0 {
83 playback = <&ssi0 &src0 &dvc0>;
84 capture = <&ssi1 &src1 &dvc1>;
85 };
86 /*
87 * (B) CPU1 -> HDMI
88 */
89 dai1 {
90 playback = <&ssi2>;
91 };
92 };
93 };
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