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1* Qualcomm Technologies Inc. SDM845 ASoC sound card driver
2
3This binding describes the SDM845 sound card, which uses qdsp for audio.
4
5- compatible:
6 Usage: required
7 Value type: <stringlist>
8 Definition: must be one of this
9 "qcom,sdm845-sndcard"
10 "qcom,db845c-sndcard"
11 "lenovo,yoga-c630-sndcard"
12
13- audio-routing:
14 Usage: Optional
15 Value type: <stringlist>
16 Definition: A list of the connections between audio components.
17 Each entry is a pair of strings, the first being the
18 connection's sink, the second being the connection's
19 source. Valid names could be power supplies, MicBias
20 of codec and the jacks on the board.
21
22- model:
23 Usage: required
24 Value type: <stringlist>
25 Definition: The user-visible name of this sound card.
26
27= dailinks
28Each subnode of sndcard represents either a dailink, and subnodes of each
29dailinks would be cpu/codec/platform dais.
30
31- link-name:
32 Usage: required
33 Value type: <string>
34 Definition: User friendly name for dai link
35
36= CPU, PLATFORM, CODEC dais subnodes
37- cpu:
38 Usage: required
39 Value type: <subnode>
40 Definition: cpu dai sub-node
41
42- codec:
43 Usage: required
44 Value type: <subnode>
45 Definition: codec dai sub-node
46
47- platform:
48 Usage: Optional
49 Value type: <subnode>
50 Definition: platform dai sub-node
51
52- sound-dai:
53 Usage: required
54 Value type: <phandle>
55 Definition: dai phandle/s and port of CPU/CODEC/PLATFORM node.
56
57Example:
58
59audio {
60 compatible = "qcom,sdm845-sndcard";
61 model = "sdm845-snd-card";
62 pinctrl-names = "default", "sleep";
63 pinctrl-0 = <&pri_mi2s_active &pri_mi2s_ws_active>;
64 pinctrl-1 = <&pri_mi2s_sleep &pri_mi2s_ws_sleep>;
65
66 mm1-dai-link {
67 link-name = "MultiMedia1";
68 cpu {
69 sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA1>;
70 };
71 };
72
73 pri-mi2s-dai-link {
74 link-name = "PRI MI2S Playback";
75 cpu {
76 sound-dai = <&q6afedai PRIMARY_MI2S_RX>;
77 };
78
79 platform {
80 sound-dai = <&q6routing>;
81 };
82 };
83};