92 lines
2.1 KiB
Plaintext
92 lines
2.1 KiB
Plaintext
* Qualcomm Technologies Inc. SDM845 ASoC sound card driver
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This binding describes the SDM845 sound card, which uses qdsp for audio.
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- compatible:
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Usage: required
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Value type: <stringlist>
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Definition: must be one of this
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"qcom,sdm845-sndcard"
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"qcom,db845c-sndcard"
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"lenovo,yoga-c630-sndcard"
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- audio-routing:
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Usage: Optional
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Value type: <stringlist>
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Definition: A list of the connections between audio components.
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Each entry is a pair of strings, the first being the
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connection's sink, the second being the connection's
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source. Valid names could be power supplies, MicBias
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of codec and the jacks on the board.
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- model:
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Usage: required
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Value type: <stringlist>
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Definition: The user-visible name of this sound card.
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- aux-devs
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Usage: optional
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Value type: <array of phandles>
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Definition: A list of phandles for auxiliary devices (e.g. analog
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amplifiers) that do not appear directly within the DAI
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links. Should be connected to another audio component
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using "audio-routing".
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= dailinks
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Each subnode of sndcard represents either a dailink, and subnodes of each
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dailinks would be cpu/codec/platform dais.
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- link-name:
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Usage: required
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Value type: <string>
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Definition: User friendly name for dai link
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= CPU, PLATFORM, CODEC dais subnodes
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- cpu:
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Usage: required
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Value type: <subnode>
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Definition: cpu dai sub-node
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- codec:
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Usage: required
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Value type: <subnode>
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Definition: codec dai sub-node
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- platform:
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Usage: Optional
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Value type: <subnode>
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Definition: platform dai sub-node
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- sound-dai:
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Usage: required
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Value type: <phandle>
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Definition: dai phandle/s and port of CPU/CODEC/PLATFORM node.
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Example:
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audio {
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compatible = "qcom,sdm845-sndcard";
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model = "sdm845-snd-card";
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pinctrl-names = "default", "sleep";
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pinctrl-0 = <&pri_mi2s_active &pri_mi2s_ws_active>;
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pinctrl-1 = <&pri_mi2s_sleep &pri_mi2s_ws_sleep>;
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mm1-dai-link {
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link-name = "MultiMedia1";
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cpu {
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sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA1>;
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};
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};
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pri-mi2s-dai-link {
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link-name = "PRI MI2S Playback";
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cpu {
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sound-dai = <&q6afedai PRIMARY_MI2S_RX>;
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};
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platform {
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sound-dai = <&q6routing>;
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};
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};
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};
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