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* 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>;
};
};
};
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