From: Srinivas Kandagatla srinivas.kandagatla@linaro.org
Add devicetree bindings documentation file for Qualcomm apq8096 sound card.
Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org --- .../devicetree/bindings/sound/qcom,apq8096.txt | 89 ++++++++++++++++++++++ 1 file changed, 89 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/qcom,apq8096.txt
diff --git a/Documentation/devicetree/bindings/sound/qcom,apq8096.txt b/Documentation/devicetree/bindings/sound/qcom,apq8096.txt new file mode 100644 index 000000000000..58cd506477c0 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/qcom,apq8096.txt @@ -0,0 +1,89 @@ +* Qualcomm Technologies APQ8096 ASoC sound card driver + +This binding describes the APQ8096 sound card, which uses qdsp for audio. + +- compatible: + Usage: required + Value type: <stringlist> + Definition: must be "qcom,apq8096-sndcard" + +- qcom,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: + += FRONTEND and BACKEND dailinks +Each subnode of sndcard represents either frontend or backend dailink, +and subnodes of each backend/frontend dailinks would be +cpu/codec/platform dais. + +- link-name: + Usage: required + Value type: <string> + Definition: User friendly name for dai link + +- is-fe: + Usage: optional + Value type: <bool> + Definition: present if the dailink is frontend + + += 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: opional + 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,apq8096-sndcard"; + qcom,model = "DB820c"; + qcom,audio-routing = + "RX_BIAS", "MCLK"; + + fedai1 { + is-fe; + link-name = "MultiMedia1 Playback"; + cpu { + sound-dai = <&q6asm MSM_FRONTEND_DAI_MULTIMEDIA1>; + }; + platform { + sound-dai = <&q6asm MSM_FRONTEND_DAI_MULTIMEDIA1>; + }; + }; + + bedai1 { + link-name = "HDMI Playback"; + cpu { + sound-dai = <&q6afe AFE_PORT_HDMI_RX>; + }; + + platform { + sound-dai = <&q6adm>; + }; + + codec { + sound-dai = <&hdmi 0>; + }; + }; +};