Based on kernel version 5.19.17
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 | * Qualcomm Technologies Inc. SDM845 ASoC sound card driver This binding describes the SDM845 sound card, which uses qdsp for audio. - compatible: Usage: required Value type: <stringlist> Definition: must be one of this "qcom,sdm845-sndcard" "qcom,db845c-sndcard" "lenovo,yoga-c630-sndcard" - audio-routing: Usage: Optional Value type: <stringlist> Definition: A list of the connections between audio components. Each entry is a pair of strings, the first being the connection's sink, the second being the connection's source. Valid names could be power supplies, MicBias of codec and the jacks on the board. - model: Usage: required Value type: <stringlist> Definition: The user-visible name of this sound card. - aux-devs Usage: optional Value type: <array of phandles> Definition: A list of phandles for auxiliary devices (e.g. analog amplifiers) that do not appear directly within the DAI links. Should be connected to another audio component using "audio-routing". = dailinks Each subnode of sndcard represents either a dailink, and subnodes of each dailinks would be cpu/codec/platform dais. - link-name: Usage: required Value type: <string> Definition: User friendly name for dai link = CPU, PLATFORM, CODEC dais subnodes - cpu: Usage: required Value type: <subnode> Definition: cpu dai sub-node - codec: Usage: required Value type: <subnode> Definition: codec dai sub-node - platform: Usage: Optional Value type: <subnode> Definition: platform dai sub-node - sound-dai: Usage: required Value type: <phandle> Definition: dai phandle/s and port of CPU/CODEC/PLATFORM node. Example: audio { compatible = "qcom,sdm845-sndcard"; model = "sdm845-snd-card"; pinctrl-names = "default", "sleep"; pinctrl-0 = <&pri_mi2s_active &pri_mi2s_ws_active>; pinctrl-1 = <&pri_mi2s_sleep &pri_mi2s_ws_sleep>; mm1-dai-link { link-name = "MultiMedia1"; cpu { sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA1>; }; }; pri-mi2s-dai-link { link-name = "PRI MI2S Playback"; cpu { sound-dai = <&q6afedai PRIMARY_MI2S_RX>; }; platform { sound-dai = <&q6routing>; }; }; }; |