On Thu, Jun 21, 2018 at 04:23:18PM +0530, Rohit kumar wrote:
Add devicetree bindings documentation file for SDM845 sound card.
Signed-off-by: Rohit kumar rohitkr@codeaurora.org
.../devicetree/bindings/sound/qcom,sdm845.txt | 82 ++++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/qcom,sdm845.txt
diff --git a/Documentation/devicetree/bindings/sound/qcom,sdm845.txt b/Documentation/devicetree/bindings/sound/qcom,sdm845.txt new file mode 100644 index 0000000..68feb08 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/qcom,sdm845.txt @@ -0,0 +1,82 @@ +* 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 "qcom,sdm845-sndcard"
+- qcom,audio-routing:
Use just '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 theconnection's sink, the second being the connection'ssource. Valid names could be power supplies, MicBiasof codec and the jacks on the board.+- cdc-vdd-supply:
- Usage: Optional
- Value type: <phandle>
- Definition: phandle of regulator supply required for codec vdd.
The codec supply should be in the codec node.
+= 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";
- qcom,model = "sdm845-snd-card";
Not documented. Just use 'model'.
- pinctrl-names = "default", "sleep";
- pinctrl-0 = <&pri_mi2s_active &pri_mi2s_ws_active>;
- pinctrl-1 = <&pri_mi2s_sleep &pri_mi2s_ws_sleep>;
- cdc-vdd-supply = <&pm8998_l14>;
- 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>;};- };
+};
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc., is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.