Unverified Commit cdd3b8da authored by Stephan Gerhold's avatar Stephan Gerhold Committed by Mark Brown
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ASoC: dt-bindings: qcom: Document "aux-devs" property 



In some cases we need to probe additional audio components that do
not appear as part of the DAI links specified in the device tree.
Examples for this are auxiliary devices such as analog amplifiers
or codecs.

To make them work they need to be added as part of "aux-devs"
and connected to some other audio component using the audio routes
configurable using "(qcom,)audio-routing".

Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: default avatarStephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20200826095141.94017-2-stephan@gerhold.net


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 68353028

Documentation/devicetree/bindings/sound/qcom,apq8016-sbc.txt

+7 −0
Original line number Diff line number Diff line
@@ -34,6 +34,13 @@ Required properties: 
			  * DMIC

			  * Ext Spk



Optional properties:



- aux-devs		: 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 "qcom,audio-routing".



Dai-link subnode properties and subnodes:



Required dai-link subnodes:

Documentation/devicetree/bindings/sound/qcom,apq8096.txt

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Original line number Diff line number Diff line
@@ -55,6 +55,14 @@ This binding describes the APQ8096 sound card, which uses qdsp for audio. 
	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.

Documentation/devicetree/bindings/sound/qcom,sdm845.txt

+8 −0
Original line number Diff line number Diff line
@@ -24,6 +24,14 @@ This binding describes the SDM845 sound card, which uses qdsp for audio. 
	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.

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